Boulder 850 mono block power amplifiers. (excellent condition) MSRP: $180009/10 condition 200 Watts each (2 amps included) (a 2nd pair is available) I am downsizing my home and selling off some of my stereo equipment. My hearing is not like it used to be.I would rather see it being used by someone who can enjoy it to the fullest. These mono amps have always been inside my house; on my stereo shelves; and have been powered up monthly per Boulder instructions. (not sitting in storage or a garage) Single-owner amps, look and sound like they are brand new. Package includes manuals, and power cords. As with every Boulder product, the 850 was designed, engineered, and manufactured from the ground up in their Colorado factory. Although the footprint is small, the 850 is most certainly a Boulder. Its diminutive size belies a muscular powerhouse of an amplifier. This uniquely small footprint means the 850 will work in applications and locations that would be prohibitive for conventionally sized amplifiers. The 850 can provide 200 watts of continuous output into any load for immense control and resolve. The purely analog circuitry avoids all the sonic problems associated with switching amplifiers, such as noise radiation, dynamic limiting, and distortion. With really dynamic source material you will hear this authority at work, with the kind of rhythmic response and coherence generally found in far more expensive (and larger) amplifiers. Even more impressive, the 850 accomplishes this delivery of power while maintaining refinement, delicacy, and nuance. Layer upon layer of the music’s information and detail become apparent, even in recordings you’ve heard hundreds of times before. The 850 is dead quiet both electrically and mechanically, possessing the same level of fit and finish as Boulder’s flagship products. A pair of XLR inputs leads to a fully-balanced, differential, three-stage input circuit, which ensures that the audio signal passes from the source to the amplifier free of distortion and noise. The muscular power supply with massive toroidal transformer provides abundant energy to precisely control your loudspeakers, regardless of the source material. Rugged binding posts mean tight, low-impedance contacts for speaker cables without the use of tools. A complete array of protection circuits provides reliability and peace of mind. Boulderlink and a 12V trigger for external control and monitoring allow flexibility in even the most complex custom installations. Finally, metal parts fabricated on Boulder’s precision CNC machining centers guarantee high-quality and elegant appearance in a solid, non-resonant chassis. Excellent Condition

The worlds largest online retailer of pre-owned audio Product DescriptionWho we areWhat we doOur ProcessOur Policies Boulder 1110 Stereo Preamplifier Product SKU: 58275 Voltage: 120V # of Owners: 1 Service History: None Serial Number: 11995 Age: Unknown Tobacco Exposure: No MSRP: $21000 Cosmetic Description: Very good condition with minimal visible cosmetic wear including a tiny nick near the bottom right of the faceplate, a few minor scratches on the top surface, and a couple barely visible scuffs along the left side surface. This item does show a few blemishes but is attractive overall and has been well cared for. What is Included: Preamplifier, Remote, Power cable Other Notes: What is it that makes the 1110 Stereo preamplifier so special? It is something rare, an overachiever, a unique combination of reference-level performance and compact, convenient design. It is at once familiar in size and shape and yet completely new in aesthetic design detail. Perhaps what makes it so special is that it takes such amazing sight, sound, use, and feel and packs them all into a single chassis. It is the perfect mix of traditional function and cutting-edge technology, earning more than 10 international product awards from media around the world. -Boulder Functional Notes: Operational condition of this item is excellent, fully tested and no issues found. Shipping: Cost to ship this item within the contiguous United States is a flat rate of $199- including packaging and insurance. For all other locations including Hawaii, Puerto Rico and Alaska, please request a quote prior to purchase. Items with factory packaging will be double boxed. When factory packaging not available re-usable shipping box with custom injected-foam mold will be used. (for all items over 10 lbs). Note that all items valued over $750 will require a signature upon delivery. Your online source for the best value in new and used audio gear. Visit us online to Buy / Sell / Trade / Consign The Music Room is the largest online retailer of pre-owned HiFi equipment in the world. Headquartered in beautiful Boulder Colorado, The Music Room is a team of 17 strong (and growing) music lovers - all dedicated to one singular mission: delivering the very best online shopping experience in the audio industry - period. We specialize in well-cared for, previously used gear because that is what we are passionate about. We feel that there is nothing more fulfilling than creating a high-performance system on a budget with carefully selected used components, speakers and cables. Our program is safe, secure, fast, fair, hassle-free and highly effective. Visit us online to Buy / Sell / Trade / Consign Buy: Are you looking to get a fair price for your used home audio equipment without all the hassles, headaches, risks and fees? We will appraise your equipment and make you a quick, easy, fair cash offer. Just fill out our “get a quote” form on our homepage to start the process. Sell: We sell in multiple online venues with many (but not all) of our products available in our eBay store. Everything is quality-assured and backed by our best-in-class, satisfaction-guaranteed return policy. Trade: Make your budget go further with a generous trade-in allowance. Let us know what you have available, and we’ll get you the best possible trade-in allowance. We can even assist with shipping & logistics from anywhere in the USA. Just fill out our “get a quote” form on our homepage to start the process. Consign: We offer a hassle-free way for individuals and businesses to liquidate used gear. We’ll handle every step of the process from shipping to appraisals, customer service, fulfillment, and returns: Industry-low rates with no hidden fees Leverage our world-class reputation and get exposure in multiple sales venues - putting your product in front of over 570k monthly shoppers. Our program is Safe, Secure, Fast, Fair, Hassle-Free and Highly Effective. With 100% feedback ratings in every venue in which we sell, you can rest assured that we’ve got your back. Visit us online to Buy / Sell / Trade / Consign Quality Assurance: We offer 15-20 new product listings for sale daily. Each product undergoes an extremely rigorous quality-assurance and listening session by one of our qualified technicians. We understand that buying used audio equipment can be rife with uncertainty and unexpected headaches. Our quality assurance program is informed by a knowledge-base built through delivering over 30,000 used audio products to satisfied customers. We promise to deliver your product in good working order - exactly as described 100% of the time. Support: We don’t just make promises. We stand behind them - your satisfaction is guaranteed. Our support team is ready to help you with any questions you might have before and after the sale. Value: In the never-ending pursuit of high performance, it’s important to stretch your limited budget as far as possible. Used equipment sells for a fraction of new prices, and with a partner like The Music Room you can upgrade any time you like and get most of your money back. There’s simply no better way to maximize a limited audio budget. Packaging: We’ve invested thousands of dollars and countless hours into mastering our state-of-the-art packaging process. Our custom foam-in-place packaging system allows us to safely package almost any item regardless of irregular shapes or sizes. Most importantly, this system provides our customers with a re-usable shipping box which increases the resale value of the product and provides a shipping method for easy, secure returns. Be seen by over 70,000 monthly visitors. Visit us online to Buy / Sell / Trade / Consign Payment: Prompt payment is expected. Paypal is preferred but all forms of payment are accepted. Unpaid item case will be opened after 3 days if no payment received. Shipping Times: Most Domestic orders ship within 1 business day of purchase. For International orders or freight shipments, please allow 2-3 business days. In all cases, tracking information will be emailed to you at the moment the shipping label is created. If you cant find it or have other questions about shipping & logistics, please contact us. Shipping Costs: Flat rate shipping costs are applicable within the contiguous 48 States (USA). These rates are clearly posted on each product page. For an International or custom quote (including Hawaii, PR, AK) please contact us. Returns: Every purchase made on eBay carries a 30-day, satisfaction-guaranteed return policy. If youre not happy with your purchase for any reason or if youve simply changed your mind... no problem. Simply ship it back for a full refund or exchange (minus S&H costs). If you have received an item that is defective in some way, we will make it right. Let us know - we will pay for return shipping and repair the item or refund 100% of your original purchase price.

The worlds largest online retailer of pre-owned audio Product DescriptionWho we areWhat we doOur ProcessOur Policies Boulder 866 Stereo Integrated Streaming Amplifier; With DAC Product SKU: 58029 Voltage: 120V # of Owners: 2 Service History: None Serial Number: 22687 Age: 4 Years Tobacco Exposure: No MSRP: $14950 Cosmetic Description: Good cosmetic condition with some minor visible cosmetic wear including a tiny scuff on the near the top edge of the faceplate above the display, a few faint scratches on the top surface near the rear edge, and a few small scuffs along edges of the side surfaces. These blemishes do not detract from its wonderful appearance from your listening position. What is Included: Amplifier, Remote, Power cable, Factory packaging Other Notes: This unit is the version with integrated streaming DAC. The Boulder 866 integrated amplifier delivered one of the most straightforward and reliable presentations of any integrated Ive had in-house. Its color palette was eminently satisfying, as was its ability to present music honestly, without editorializing. The quality of its optional DAC and its full-color display blew me away. -Jason Serinus, Stereophile Functional Notes: Operational condition of this item is excellent, fully tested and no issues found. Shipping: Cost to ship this item within the contiguous United States is a flat rate of $179- including packaging and insurance. For all other locations including Hawaii, Puerto Rico and Alaska, please request a quote prior to purchase. Items with factory packaging will be double boxed. When factory packaging not available re-usable shipping box with custom injected-foam mold will be used. (for all items over 10 lbs). Note that all items valued over $750 will require a signature upon delivery. Your online source for the best value in new and used audio gear. Visit us online to Buy / Sell / Trade / Consign The Music Room is the largest online retailer of pre-owned HiFi equipment in the world. Headquartered in beautiful Boulder Colorado, The Music Room is a team of 17 strong (and growing) music lovers - all dedicated to one singular mission: delivering the very best online shopping experience in the audio industry - period. We specialize in well-cared for, previously used gear because that is what we are passionate about. We feel that there is nothing more fulfilling than creating a high-performance system on a budget with carefully selected used components, speakers and cables. Our program is safe, secure, fast, fair, hassle-free and highly effective. Visit us online to Buy / Sell / Trade / Consign Buy: Are you looking to get a fair price for your used home audio equipment without all the hassles, headaches, risks and fees? We will appraise your equipment and make you a quick, easy, fair cash offer. Just fill out our “get a quote” form on our homepage to start the process. Sell: We sell in multiple online venues with many (but not all) of our products available in our eBay store. Everything is quality-assured and backed by our best-in-class, satisfaction-guaranteed return policy. Trade: Make your budget go further with a generous trade-in allowance. Let us know what you have available, and we’ll get you the best possible trade-in allowance. We can even assist with shipping & logistics from anywhere in the USA. Just fill out our “get a quote” form on our homepage to start the process. Consign: We offer a hassle-free way for individuals and businesses to liquidate used gear. We’ll handle every step of the process from shipping to appraisals, customer service, fulfillment, and returns: Industry-low rates with no hidden fees Leverage our world-class reputation and get exposure in multiple sales venues - putting your product in front of over 570k monthly shoppers. Our program is Safe, Secure, Fast, Fair, Hassle-Free and Highly Effective. With 100% feedback ratings in every venue in which we sell, you can rest assured that we’ve got your back. Visit us online to Buy / Sell / Trade / Consign Quality Assurance: We offer 15-20 new product listings for sale daily. Each product undergoes an extremely rigorous quality-assurance and listening session by one of our qualified technicians. We understand that buying used audio equipment can be rife with uncertainty and unexpected headaches. Our quality assurance program is informed by a knowledge-base built through delivering over 30,000 used audio products to satisfied customers. We promise to deliver your product in good working order - exactly as described 100% of the time. Support: We don’t just make promises. We stand behind them - your satisfaction is guaranteed. Our support team is ready to help you with any questions you might have before and after the sale. Value: In the never-ending pursuit of high performance, it’s important to stretch your limited budget as far as possible. Used equipment sells for a fraction of new prices, and with a partner like The Music Room you can upgrade any time you like and get most of your money back. There’s simply no better way to maximize a limited audio budget. Packaging: We’ve invested thousands of dollars and countless hours into mastering our state-of-the-art packaging process. Our custom foam-in-place packaging system allows us to safely package almost any item regardless of irregular shapes or sizes. Most importantly, this system provides our customers with a re-usable shipping box which increases the resale value of the product and provides a shipping method for easy, secure returns. Be seen by over 70,000 monthly visitors. Visit us online to Buy / Sell / Trade / Consign Payment: Prompt payment is expected. Paypal is preferred but all forms of payment are accepted. Unpaid item case will be opened after 3 days if no payment received. Shipping Times: Most Domestic orders ship within 1 business day of purchase. For International orders or freight shipments, please allow 2-3 business days. In all cases, tracking information will be emailed to you at the moment the shipping label is created. If you cant find it or have other questions about shipping & logistics, please contact us. Shipping Costs: Flat rate shipping costs are applicable within the contiguous 48 States (USA). These rates are clearly posted on each product page. For an International or custom quote (including Hawaii, PR, AK) please contact us. Returns: Every purchase made on eBay carries a 30-day, satisfaction-guaranteed return policy. If youre not happy with your purchase for any reason or if youve simply changed your mind... no problem. Simply ship it back for a full refund or exchange (minus S&H costs). If you have received an item that is defective in some way, we will make it right. Let us know - we will pay for return shipping and repair the item or refund 100% of your original purchase price.

HighEnd Boulder Amplifier Vollverstärker 866 Mit DAC Modul und Streamer Sensationeller Klang – ich verkaufe den Vorverstärker nur, weil ich auf Monoblöcke umsteigen möchte Sehr guter gebrauchter Zustand, wie NEU Funktioniert einwandfrei – Herstellergarantie bis Januar 2025 Original Karton inklusive Privatverkauf unter Ausschluss jeglicher Gewährleistung für Sachmängel am Kaufgegenstand. Kein Umtauschrecht oder Recht auf Rückgabe. Ich habe den Artikel nach bestem Wissen und Gewissen beschrieben. Sollten Sie eine Frage zu diesem Artikel haben, so bitte ich Sie, diese vor Abgabe Ihres Gebotes zu stellen. Bitte fragen sie nicht nach einem günstigeren Versand, die Kosten stehen fest und ich versende ausschließlich NUR versicherte Pakete. Die Ware muss innerhalb von einer Woche bezahlt werden. Andere Artikel des Verkäufers ansehen

HighEnd Boulder Amplifier Vollverstärker 866 Mit DAC Modul und Streamer Sensationeller Klang – ich verkaufe den Vorverstärker nur, weil ich auf das größere Modell umsteigen möchte Sehr guter gebrauchter Zustand Funktioniert einwandfrei – Herstellergarantie bis April 2024 Original Karton inklusive Privatverkauf unter Ausschluss jeglicher Gewährleistung für Sachmängel am Kaufgegenstand. Kein Umtauschrecht oder Recht auf Rückgabe. Ich habe den Artikel nach bestem Wissen und Gewissen beschrieben. Sollten Sie eine Frage zu diesem Artikel haben, so bitte ich Sie, diese vor Abgabe Ihres Gebotes zu stellen. Bitte fragen sie nicht nach einem günstigeren Versand, die Kosten stehen fest und ich versende ausschließlich NUR versicherte Pakete. Die Ware muss innerhalb von einer Woche bezahlt werden. Andere Artikel des Verkäufers ansehen

Hello, Thanks for viewing my auction, today I have what I was told is a very rare Boulder Amplifiers Phonograph Preamplifier MS 11 for sale. This piece was stored for a long time before it was removed. Boulder Amplifiers are world renowned for the quality and craftsmanship they have on products they produce. This piece was part of a large audio collection and I have never used this piece. As such this piece is being sold as-is so please ask any questions before bidding. This was from the estate of a former Ampex employee who had a large amount new old stock parts. This piece could be fully functional or require work. I do not have the time to test all the pieces that I inherited. This is a really fun piece and a must have for anyone who wants to try the next level in the phono system. Please review all the photos attached to this listing. This item could have dings, dents, scratches, scuffs, or anything else that could have happened over the years. This item will be shipped once payment has been made. I have a full time job and as such have to pack and ship on Fridays or Mondays. I will insure the item for the final amount and include a tracking number. Please note that this item is being sold “As-Is” with no warranties expressed or implied. There will be no returns accepted on this item. This item is for Parts or Repair at this time. If you have any questions please feel free to reach out. Thanks again for reviewing my auction!

Boulder 102AE Stereo Power Amplifier Audio Classics, Ltd. . Original MSRP: $3995.00 The 102AE produces 100 WPC @ 8-Ohms and 170 WPC @ 4-Ohms. Tested and Producing its stated output. Couple of lite scratches on the fins, one small blemish on the front. Hard to see in normal room lighting. Comes with Original Box and Power Cable. Thanks for looking. Model / Serial 102AE / A48 Contiguous US Lower-48-State shipping, insurance and handling charges for this item will be $60.00Please submit all inquiries regarding this item through the Ebay messaging system and ask All questions before committing to purchase. We will only ship to your Ebay/Paypal/Credit-Card Verified or Confirmed shipping address. We will not under-value this item or otherwise falsify our invoices or shipping documents for any reason.This item is available for sale only through Ebay.________________________________________________________________________________________________________

Hello, Thanks for viewing my auction, today I have what I was told is a very rare Boulder Amplifiers Phonograph Preamplifier MS 11 for sale. This piece was stored for a long time before it was removed. Boulder Amplifiers are world renowned for the quality and craftsmanship they have on products they produce. This piece was part of a large audio collection and I have never used this piece. As such this piece is being sold as-is so please ask any questions before bidding. This was from the estate of a former Ampex employee who had a large amount new old stock parts. This piece could be fully functional or require work. I do not have the time to test all the pieces that I inherited. This is a really fun piece and a must have for anyone who wants to try the next level in the phono system. Please review all the photos attached to this listing. This item could have dings, dents, scratches, scuffs, or anything else that could have happened over the years. This item will be shipped once payment has been made. I have a full time job and as such have to pack and ship on Fridays or Mondays. I will insure the item for the final amount and include a tracking number. Please note that this item is being sold “As-Is” with no warranties expressed or implied. There will be no returns accepted on this item. This item is for Parts or Repair at this time. If you have any questions please feel free to reach out. Thanks again for reviewing my auction!

Hello, Thanks for viewing my auction, today I have what I was told is a very rare Boulder Amplifiers Phonograph Preamplifier MS 11 for sale. This piece was stored for a long time before it was removed. Boulder Amplifiers are world renowned for the quality and craftsmanship they have on products they produce. This piece was part of a large audio collection and I have never used this piece. As such this piece is being sold as-is so please ask any questions before bidding. This was from the estate of a former Ampex employee who had a large amount new old stock parts. This piece could be fully functional or require work. I do not have the time to test all the pieces that I inherited. This is a really fun piece and a must have for anyone who wants to try the next level in the phono system. Please review all the photos attached to this listing. This item could have dings, dents, scratches, scuffs, or anything else that could have happened over the years. This item will be shipped once payment has been made. I have a full time job and as such have to pack and ship on Fridays or Mondays. I will insure the item for the final amount and include a tracking number. Please note that this item is being sold “As-Is” with no warranties expressed or implied. There will be no returns accepted on this item. This item is for Parts or Repair at this time. If you have any questions please feel free to reach out. Thanks again for reviewing my auction!

Hello, Thanks for viewing my auction, today I have what I was told is a very rare Boulder Amplifiers Phonograph Preamplifier MS 11 for sale. This piece was stored for a long time before it was removed. Boulder Amplifiers are world renowned for the quality and craftsmanship they have on products they produce. This piece was part of a large audio collection and I have never used this piece. As such this piece is being sold as-is so please ask any questions before bidding. This was from the estate of a former Ampex employee who had a large amount new old stock parts. This piece could be fully functional or require work. I do not have the time to test all the pieces that I inherited. This is a really fun piece and a must have for anyone who wants to try the next level in the phono system. Please review all the photos attached to this listing. This item could have dings, dents, scratches, scuffs, or anything else that could have happened over the years. This item will be shipped once payment has been made. I have a full time job and as such have to pack and ship on Fridays or Mondays. I will insure the item for the final amount and include a tracking number. Please note that this item is being sold “As-Is” with no warranties expressed or implied. There will be no returns accepted on this item. This item is for Parts or Repair at this time. If you have any questions please feel free to reach out. Thanks again for reviewing my auction!

Hello, Thanks for viewing my auction, today I have what I was told is a very rare Boulder Amplifiers Phonograph Preamplifier MS 11 for sale. This piece was stored for a long time before it was removed. Boulder Amplifiers are world renowned for the quality and craftsmanship they have on products they produce. This piece was part of a large audio collection and I have never used this piece. As such this piece is being sold as-is so please ask any questions before bidding. This was from the estate of a former Ampex employee who had a large amount new old stock parts. This piece could be fully functional or require work. I do not have the time to test all the pieces that I inherited. This is a really fun piece and a must have for anyone who wants to try the next level in the phono system. Please review all the photos attached to this listing. This item could have dings, dents, scratches, scuffs, or anything else that could have happened over the years. This item will be shipped once payment has been made. I have a full time job and as such have to pack and ship on Fridays or Mondays. I will insure the item for the final amount and include a tracking number. Please note that this item is being sold “As-Is” with no warranties expressed or implied. There will be no returns accepted on this item. This item is for Parts or Repair at this time. If you have any questions please feel free to reach out. Thanks again for reviewing my auction!

Hello, Thanks for viewing my auction, today I have what I was told is a very rare Boulder Amplifiers Phonograph Preamplifier MS 11 for sale. This piece was stored for a long time before it was removed. Boulder Amplifiers are world renowned for the quality and craftsmanship they have on products they produce. This piece was part of a large audio collection and I have never used this piece. As such this piece is being sold as-is so please ask any questions before bidding. This was from the estate of a former Ampex employee who had a large amount new old stock parts. This piece could be fully functional or require work. I do not have the time to test all the pieces that I inherited. This is a really fun piece and a must have for anyone who wants to try the next level in the phono system. Please review all the photos attached to this listing. This item could have dings, dents, scratches, scuffs, or anything else that could have happened over the years. This item will be shipped once payment has been made. I have a full time job and as such have to pack and ship on Fridays or Mondays. I will insure the item for the final amount and include a tracking number. Please note that this item is being sold “As-Is” with no warranties expressed or implied. There will be no returns accepted on this item. This item is for Parts or Repair at this time. If you have any questions please feel free to reach out. Thanks again for reviewing my auction!

Hello, Thanks for viewing my auction, today I have what I was told is a very rare Boulder Amplifiers Preamplifier MS21/MS32 for sale. This piece was stored for a long time before it was removed. Boulder Amplifiers are world renowned for the quality and craftsmanship they have on products they produce. I have attached an explanation of this preamplifier as it highlights this piece. This is from the internet and this is only used to educate anyone interested. All rights and credit is for that individual. “I own this preamp and have all of the printed materials on it. The modules are part of the Boulder modular series that predated the L3ae, L5ae, 2010, 1010 and 1012. There were a number of modules. There is the power supply module (MS01) that can power up to 4 of the other modules. There is the switch module (MS21) which has no active circuitry and simply directs inputs in the line module. There are two phono options (MS10 & MS11). The MS10 is the simplest and allows MM cartridges. The MS11 adds low cut filters and covers MM cartridges. Two MC cartridge upgrades were available for the MS10 & MS11. One is a Jensen MC step up transformer and another is a solid state gain stage that is similar to the front-end of the 2008 phono preamp. There are also two line options. One is the MS32 which has a high impedance (200K) buffered input and featured a Penny & Giles volume potentiometer. The other MS31 is a more standard single stage line section that has a 25K input impedance (this is from memory - I have the MS32). Both had an optional balanced output option. There is a balanced input line stage called the MS51 that allows balanced line level sources. there is also a microphone preamp module also featuring Jensen transformers, but I do not own it and don't remember the MS## model. There are outboard DC power cables that link the supply to each powered module. There are 1, 2 and 4 module wide cabinets to house the variety of modules.” https://forum.audiogon.com/discussions/questions-about-boulder-pre-amp-ms21-ms32-ms01 This piece was part of a large audio collection and I have never used this piece. As such this piece is being sold as-is so please ask any questions before bidding. This was from the estate of a former Ampex employee who had a large amount new old stock parts. This piece could be fully functional or require work. I do not have the time to test all the pieces that I inherited. This is a really fun piece and a must have for anyone who wants to try the next level in a system! Please review all the photos attached to this listing. This item could have dings, dents, scratches, scuffs, or anything else that could have happened over the years. This item will be shipped once payment has been made. I have a full time job and as such have to pack and ship on Fridays or Mondays. I will insure the item for the final amount and include a tracking number. Please note that this item is being sold “As-Is” with no warranties expressed or implied. There will be no returns accepted on this item. This item is for Parts or Repair at this time. If you have any questions please feel free to reach out. Thanks again for reviewing my auction!

Hello, Thanks for viewing my auction, today I have what I was told is a very rare Boulder Amplifiers Phonograph Preamplifier MS 11 for sale. This piece was stored for a long time before it was removed. Boulder Amplifiers are world renowned for the quality and craftsmanship they have on products they produce. This piece was part of a large audio collection and I have never used this piece. As such this piece is being sold as-is so please ask any questions before bidding. This was from the estate of a former Ampex employee who had a large amount new old stock parts. This piece could be fully functional or require work. I do not have the time to test all the pieces that I inherited. This is a really fun piece and a must have for anyone who wants to try the next level in the phono system. Please review all the photos attached to this listing. This item could have dings, dents, scratches, scuffs, or anything else that could have happened over the years. This item will be shipped once payment has been made. I have a full time job and as such have to pack and ship on Fridays or Mondays. I will insure the item for the final amount and include a tracking number. Please note that this item is being sold “As-Is” with no warranties expressed or implied. There will be no returns accepted on this item. This item is for Parts or Repair at this time. If you have any questions please feel free to reach out. Thanks again for reviewing my auction!

Hello, Thanks for viewing my auction, today I have what I was told is a very rare Boulder Amplifiers Phonograph Preamplifier MS 11 for sale. This piece was stored for a long time before it was removed. Boulder Amplifiers are world renowned for the quality and craftsmanship they have on products they produce. This piece was part of a large audio collection and I have never used this piece. As such this piece is being sold as-is so please ask any questions before bidding. This was from the estate of a former Ampex employee who had a large amount new old stock parts. This piece could be fully functional or require work. I do not have the time to test all the pieces that I inherited. This is a really fun piece and a must have for anyone who wants to try the next level in the phono system. Please review all the photos attached to this listing. This item could have dings, dents, scratches, scuffs, or anything else that could have happened over the years. This item will be shipped once payment has been made. I have a full time job and as such have to pack and ship on Fridays or Mondays. I will insure the item for the final amount and include a tracking number. Please note that this item is being sold “As-Is” with no warranties expressed or implied. There will be no returns accepted on this item. This item is for Parts or Repair at this time. If you have any questions please feel free to reach out. Thanks again for reviewing my auction!

Hello, Thanks for viewing my auction, today I have what I was told is a very rare Boulder Amplifiers Preamplifier MS21/MS32 for sale. This piece was stored for a long time before it was removed. Boulder Amplifiers are world renowned for the quality and craftsmanship they have on products they produce. I have attached an explanation of this preamplifier as it highlights this piece. This is from the internet and this is only used to educate anyone interested. All rights and credit is for that individual. “I own this preamp and have all of the printed materials on it. The modules are part of the Boulder modular series that predated the L3ae, L5ae, 2010, 1010 and 1012. There were a number of modules. There is the power supply module (MS01) that can power up to 4 of the other modules. There is the switch module (MS21) which has no active circuitry and simply directs inputs in the line module. There are two phono options (MS10 & MS11). The MS10 is the simplest and allows MM cartridges. The MS11 adds low cut filters and covers MM cartridges. Two MC cartridge upgrades were available for the MS10 & MS11. One is a Jensen MC step up transformer and another is a solid state gain stage that is similar to the front-end of the 2008 phono preamp. There are also two line options. One is the MS32 which has a high impedance (200K) buffered input and featured a Penny & Giles volume potentiometer. The other MS31 is a more standard single stage line section that has a 25K input impedance (this is from memory - I have the MS32). Both had an optional balanced output option. There is a balanced input line stage called the MS51 that allows balanced line level sources. there is also a microphone preamp module also featuring Jensen transformers, but I do not own it and don't remember the MS## model. There are outboard DC power cables that link the supply to each powered module. There are 1, 2 and 4 module wide cabinets to house the variety of modules.” https://forum.audiogon.com/discussions/questions-about-boulder-pre-amp-ms21-ms32-ms01 This piece was part of a large audio collection and I have never used this piece. As such this piece is being sold as-is so please ask any questions before bidding. This was from the estate of a former Ampex employee who had a large amount new old stock parts. This piece could be fully functional or require work. I do not have the time to test all the pieces that I inherited. This is a really fun piece and a must have for anyone who wants to try the next level in a system! Please review all the photos attached to this listing. This item could have dings, dents, scratches, scuffs, or anything else that could have happened over the years. This item will be shipped once payment has been made. I have a full time job and as such have to pack and ship on Fridays or Mondays. I will insure the item for the final amount and include a tracking number. Please note that this item is being sold “As-Is” with no warranties expressed or implied. There will be no returns accepted on this item. This item is for Parts or Repair at this time. If you have any questions please feel free to reach out. Thanks again for reviewing my auction!

Hello, Thanks for viewing my auction, today I have what I was told is a very rare Boulder Amplifiers Phonograph Preamplifier MS 11 for sale. This piece was stored for a long time before it was removed. Boulder Amplifiers are world renowned for the quality and craftsmanship they have on products they produce. This piece was part of a large audio collection and I have never used this piece. As such this piece is being sold as-is so please ask any questions before bidding. This was from the estate of a former Ampex employee who had a large amount new old stock parts. This piece could be fully functional or require work. I do not have the time to test all the pieces that I inherited. This is a really fun piece and a must have for anyone who wants to try the next level in the phono system. Please review all the photos attached to this listing. This item could have dings, dents, scratches, scuffs, or anything else that could have happened over the years. This item will be shipped once payment has been made. I have a full time job and as such have to pack and ship on Fridays or Mondays. I will insure the item for the final amount and include a tracking number. Please note that this item is being sold “As-Is” with no warranties expressed or implied. There will be no returns accepted on this item. This item is for Parts or Repair at this time. If you have any questions please feel free to reach out. Thanks again for reviewing my auction!

Hello, Thanks for viewing my auction, today I have what I was told is a very rare Boulder Amplifiers Preamplifier MS21/MS32 for sale. This piece was stored for a long time before it was removed. Boulder Amplifiers are world renowned for the quality and craftsmanship they have on products they produce. I have attached an explanation of this preamplifier as it highlights this piece. This is from the internet and this is only used to educate anyone interested. All rights and credit is for that individual. “I own this preamp and have all of the printed materials on it. The modules are part of the Boulder modular series that predated the L3ae, L5ae, 2010, 1010 and 1012. There were a number of modules. There is the power supply module (MS01) that can power up to 4 of the other modules. There is the switch module (MS21) which has no active circuitry and simply directs inputs in the line module. There are two phono options (MS10 & MS11). The MS10 is the simplest and allows MM cartridges. The MS11 adds low cut filters and covers MM cartridges. Two MC cartridge upgrades were available for the MS10 & MS11. One is a Jensen MC step up transformer and another is a solid state gain stage that is similar to the front-end of the 2008 phono preamp. There are also two line options. One is the MS32 which has a high impedance (200K) buffered input and featured a Penny & Giles volume potentiometer. The other MS31 is a more standard single stage line section that has a 25K input impedance (this is from memory - I have the MS32). Both had an optional balanced output option. There is a balanced input line stage called the MS51 that allows balanced line level sources. there is also a microphone preamp module also featuring Jensen transformers, but I do not own it and don't remember the MS## model. There are outboard DC power cables that link the supply to each powered module. There are 1, 2 and 4 module wide cabinets to house the variety of modules.” https://forum.audiogon.com/discussions/questions-about-boulder-pre-amp-ms21-ms32-ms01 This piece was part of a large audio collection and I have never used this piece. As such this piece is being sold as-is so please ask any questions before bidding. This was from the estate of a former Ampex employee who had a large amount new old stock parts. This piece could be fully functional or require work. I do not have the time to test all the pieces that I inherited. This is a really fun piece and a must have for anyone who wants to try the next level in a system! Please review all the photos attached to this listing. This item could have dings, dents, scratches, scuffs, or anything else that could have happened over the years. This item will be shipped once payment has been made. I have a full time job and as such have to pack and ship on Fridays or Mondays. I will insure the item for the final amount and include a tracking number. Please note that this item is being sold “As-Is” with no warranties expressed or implied. There will be no returns accepted on this item. This item is for Parts or Repair at this time. If you have any questions please feel free to reach out. Thanks again for reviewing my auction!

Hello, Thanks for viewing my auction, today I have what I was told is a very rare Boulder Amplifiers Phonograph Preamplifier MS 11 for sale. This piece was stored for a long time before it was removed. Boulder Amplifiers are world renowned for the quality and craftsmanship they have on products they produce. This piece was part of a large audio collection and I have never used this piece. As such this piece is being sold as-is so please ask any questions before bidding. This was from the estate of a former Ampex employee who had a large amount new old stock parts. This piece could be fully functional or require work. I do not have the time to test all the pieces that I inherited. This is a really fun piece and a must have for anyone who wants to try the next level in the phono system. Please review all the photos attached to this listing. This item could have dings, dents, scratches, scuffs, or anything else that could have happened over the years. This item will be shipped once payment has been made. I have a full time job and as such have to pack and ship on Fridays or Mondays. I will insure the item for the final amount and include a tracking number. Please note that this item is being sold “As-Is” with no warranties expressed or implied. There will be no returns accepted on this item. This item is for Parts or Repair at this time. If you have any questions please feel free to reach out. Thanks again for reviewing my auction!

Hello, Thanks for viewing my auction, today I have what I was told is a very rare Boulder Amplifiers Preamplifier MS21/MS32 for sale. This piece was stored for a long time before it was removed. Boulder Amplifiers are world renowned for the quality and craftsmanship they have on products they produce. I have attached an explanation of this preamplifier as it highlights this piece. This is from the internet and this is only used to educate anyone interested. All rights and credit is for that individual. “I own this preamp and have all of the printed materials on it. The modules are part of the Boulder modular series that predated the L3ae, L5ae, 2010, 1010 and 1012. There were a number of modules. There is the power supply module (MS01) that can power up to 4 of the other modules. There is the switch module (MS21) which has no active circuitry and simply directs inputs in the line module. There are two phono options (MS10 & MS11). The MS10 is the simplest and allows MM cartridges. The MS11 adds low cut filters and covers MM cartridges. Two MC cartridge upgrades were available for the MS10 & MS11. One is a Jensen MC step up transformer and another is a solid state gain stage that is similar to the front-end of the 2008 phono preamp. There are also two line options. One is the MS32 which has a high impedance (200K) buffered input and featured a Penny & Giles volume potentiometer. The other MS31 is a more standard single stage line section that has a 25K input impedance (this is from memory - I have the MS32). Both had an optional balanced output option. There is a balanced input line stage called the MS51 that allows balanced line level sources. there is also a microphone preamp module also featuring Jensen transformers, but I do not own it and don't remember the MS## model. There are outboard DC power cables that link the supply to each powered module. There are 1, 2 and 4 module wide cabinets to house the variety of modules.” https://forum.audiogon.com/discussions/questions-about-boulder-pre-amp-ms21-ms32-ms01 This piece was part of a large audio collection and I have never used this piece. As such this piece is being sold as-is so please ask any questions before bidding. This was from the estate of a former Ampex employee who had a large amount new old stock parts. This piece could be fully functional or require work. I do not have the time to test all the pieces that I inherited. This is a really fun piece and a must have for anyone who wants to try the next level in a system! Please review all the photos attached to this listing. This item could have dings, dents, scratches, scuffs, or anything else that could have happened over the years. This item will be shipped once payment has been made. I have a full time job and as such have to pack and ship on Fridays or Mondays. I will insure the item for the final amount and include a tracking number. Please note that this item is being sold “As-Is” with no warranties expressed or implied. There will be no returns accepted on this item. This item is for Parts or Repair at this time. If you have any questions please feel free to reach out. Thanks again for reviewing my auction!

Hello, Thanks for viewing my auction, today I have what I was told is a very rare Boulder Amplifiers Phonograph Preamplifier MS 11 for sale. This piece was stored for a long time before it was removed. Boulder Amplifiers are world renowned for the quality and craftsmanship they have on products they produce. This piece was part of a large audio collection and I have never used this piece. As such this piece is being sold as-is so please ask any questions before bidding. This was from the estate of a former Ampex employee who had a large amount new old stock parts. This piece could be fully functional or require work. I do not have the time to test all the pieces that I inherited. This is a really fun piece and a must have for anyone who wants to try the next level in the phono system. Please review all the photos attached to this listing. This item could have dings, dents, scratches, scuffs, or anything else that could have happened over the years. This item will be shipped once payment has been made. I have a full time job and as such have to pack and ship on Fridays or Mondays. I will insure the item for the final amount and include a tracking number. Please note that this item is being sold “As-Is” with no warranties expressed or implied. There will be no returns accepted on this item. This item is for Parts or Repair at this time. If you have any questions please feel free to reach out. Thanks again for reviewing my auction!

Hello, Thanks for viewing my auction, today I have what I was told is a very rare Boulder Amplifiers Preamplifier MS21/MS32 for sale. This piece was stored for a long time before it was removed. Boulder Amplifiers are world renowned for the quality and craftsmanship they have on products they produce. I have attached an explanation of this preamplifier as it highlights this piece. This is from the internet and this is only used to educate anyone interested. All rights and credit is for that individual. “I own this preamp and have all of the printed materials on it. The modules are part of the Boulder modular series that predated the L3ae, L5ae, 2010, 1010 and 1012. There were a number of modules. There is the power supply module (MS01) that can power up to 4 of the other modules. There is the switch module (MS21) which has no active circuitry and simply directs inputs in the line module. There are two phono options (MS10 & MS11). The MS10 is the simplest and allows MM cartridges. The MS11 adds low cut filters and covers MM cartridges. Two MC cartridge upgrades were available for the MS10 & MS11. One is a Jensen MC step up transformer and another is a solid state gain stage that is similar to the front-end of the 2008 phono preamp. There are also two line options. One is the MS32 which has a high impedance (200K) buffered input and featured a Penny & Giles volume potentiometer. The other MS31 is a more standard single stage line section that has a 25K input impedance (this is from memory - I have the MS32). Both had an optional balanced output option. There is a balanced input line stage called the MS51 that allows balanced line level sources. there is also a microphone preamp module also featuring Jensen transformers, but I do not own it and don't remember the MS## model. There are outboard DC power cables that link the supply to each powered module. There are 1, 2 and 4 module wide cabinets to house the variety of modules.” https://forum.audiogon.com/discussions/questions-about-boulder-pre-amp-ms21-ms32-ms01 This piece was part of a large audio collection and I have never used this piece. As such this piece is being sold as-is so please ask any questions before bidding. This was from the estate of a former Ampex employee who had a large amount new old stock parts. This piece could be fully functional or require work. I do not have the time to test all the pieces that I inherited. This is a really fun piece and a must have for anyone who wants to try the next level in a system! Please review all the photos attached to this listing. This item could have dings, dents, scratches, scuffs, or anything else that could have happened over the years. This item will be shipped once payment has been made. I have a full time job and as such have to pack and ship on Fridays or Mondays. I will insure the item for the final amount and include a tracking number. Please note that this item is being sold “As-Is” with no warranties expressed or implied. There will be no returns accepted on this item. This item is for Parts or Repair at this time. If you have any questions please feel free to reach out. Thanks again for reviewing my auction!

Hello, Thanks for viewing my auction, today I have what I was told is a very rare Boulder Amplifiers Phonograph Preamplifier MS 11 for sale. This piece was stored for a long time before it was removed. Boulder Amplifiers are world renowned for the quality and craftsmanship they have on products they produce. This piece was part of a large audio collection and I have never used this piece. As such this piece is being sold as-is so please ask any questions before bidding. This was from the estate of a former Ampex employee who had a large amount new old stock parts. This piece could be fully functional or require work. I do not have the time to test all the pieces that I inherited. This is a really fun piece and a must have for anyone who wants to try the next level in the phono system. Please review all the photos attached to this listing. This item could have dings, dents, scratches, scuffs, or anything else that could have happened over the years. This item will be shipped once payment has been made. I have a full time job and as such have to pack and ship on Fridays or Mondays. I will insure the item for the final amount and include a tracking number. Please note that this item is being sold “As-Is” with no warranties expressed or implied. There will be no returns accepted on this item. This item is for Parts or Repair at this time. If you have any questions please feel free to reach out. Thanks again for reviewing my auction!

Hello, Thanks for viewing my auction, today I have what I was told is a very rare Boulder Amplifiers Preamplifier MS21/MS32 for sale. This piece was stored for a long time before it was removed. Boulder Amplifiers are world renowned for the quality and craftsmanship they have on products they produce. I have attached an explanation of this preamplifier as it highlights this piece. This is from the internet and this is only used to educate anyone interested. All rights and credit is for that individual. “I own this preamp and have all of the printed materials on it. The modules are part of the Boulder modular series that predated the L3ae, L5ae, 2010, 1010 and 1012. There were a number of modules. There is the power supply module (MS01) that can power up to 4 of the other modules. There is the switch module (MS21) which has no active circuitry and simply directs inputs in the line module. There are two phono options (MS10 & MS11). The MS10 is the simplest and allows MM cartridges. The MS11 adds low cut filters and covers MM cartridges. Two MC cartridge upgrades were available for the MS10 & MS11. One is a Jensen MC step up transformer and another is a solid state gain stage that is similar to the front-end of the 2008 phono preamp. There are also two line options. One is the MS32 which has a high impedance (200K) buffered input and featured a Penny & Giles volume potentiometer. The other MS31 is a more standard single stage line section that has a 25K input impedance (this is from memory - I have the MS32). Both had an optional balanced output option. There is a balanced input line stage called the MS51 that allows balanced line level sources. there is also a microphone preamp module also featuring Jensen transformers, but I do not own it and don't remember the MS## model. There are outboard DC power cables that link the supply to each powered module. There are 1, 2 and 4 module wide cabinets to house the variety of modules.” https://forum.audiogon.com/discussions/questions-about-boulder-pre-amp-ms21-ms32-ms01 This piece was part of a large audio collection and I have never used this piece. As such this piece is being sold as-is so please ask any questions before bidding. This was from the estate of a former Ampex employee who had a large amount new old stock parts. This piece could be fully functional or require work. I do not have the time to test all the pieces that I inherited. This is a really fun piece and a must have for anyone who wants to try the next level in a system! Please review all the photos attached to this listing. This item could have dings, dents, scratches, scuffs, or anything else that could have happened over the years. This item will be shipped once payment has been made. I have a full time job and as such have to pack and ship on Fridays or Mondays. I will insure the item for the final amount and include a tracking number. Please note that this item is being sold “As-Is” with no warranties expressed or implied. There will be no returns accepted on this item. This item is for Parts or Repair at this time. If you have any questions please feel free to reach out. Thanks again for reviewing my auction!