This Audio Research LS25 MKII tube preamplifier is a high-quality device that offers a number of audio inputs, including stereo L/R RCA and XLR inputs. With two channels, this preamplifier is perfect for enhancing your audio experience and delivering superior sound quality. The brand, Audio Research, is well-known for producing top-of-the-line audio equipment, and this model, LS 25 MKII, is no exception. Whether youre a music enthusiast or a professional audio engineer, this preamplifier is an excellent choice for amplifying your audio signals. Its perfect for use in a home audio setup or in a professional recording studio. So, if youre looking for a reliable and high-performance preamplifier, the Audio Research LS25 MKII is an excellent choice. This particular unit was re-tubed, serviced and all switches cleaned in Dec 2023. Since then, it has about 100 hours on the new tubes. I purchased an Audio Research Reference 5se, so I will no longer be using the LS 25 MKII. That is the only reason I am selling it. The unit has a broken screw head in the top panel (right rear). The included remote control battery back tab (not control) is broken. A small piece of tape or a drop of glue works perfectly to hold it in place (See Photos). Visually the unit shows like new and has very few imperfections. The photos do it no justice. Sonically it is perfect! The unit will be packaged in the original box. Comes with manual, power chord and remote control. You are going to love it!

Description This unit powers on, however we could not get it to pass any audio and there we are selling the unit AS-IS for parts/repair as a non-working or incomplete unit. We have not tested / inspected any further, item may have unknown issues we are not aware of. See all item photos for the condition of the unit. Unless pictured, no power adapter / power cable included. The unit is on hand and ready to ship. Please feel free to message us with any questions you may have. Specifics Manufacturer Audio Research Model Number LS2B SKU 19-72256 Terms and Conditions Includes This listing includes only what is pictured or described. Please contact us for additional details. Many of our items take a standard PC style power cable (NEMA 5-15P to IEC-320-C13) which unless pictured is not included. We can include one if requested at the time of checkout free of charge. If unsure, please do not hesitate message us and we will be happy to confirm for you what is included with your purchase. If a custom power cord or AC adapter is required for the item, it is only included if pictured or described above. Shipping Details Shipping originates from zip code 95742. Unless otherwise specified, orders will be shipped by Fedex, USPS, GSO, or UPS at the seller’s discretion in order to ensure delivery by the estimated delivery date. Orders received by 8am PST are shipped same day, all other orders are shipped within 1 business day. Most listings offer Standard, Expedited, and Overnight shipping options. If these shipping options do not meet your needs, please contact us to make arrangements. We gladly ship international, please contact us for a quote if no shipping option is provided. All items are carefully packed with brand new packaging materials to ensure your item arrives on time and without damage. International Buyers Import duties, taxes, and charges are not included in the item price or shipping cost. These charges are the buyers responsibility. Please check with your countrys customs office to determine with these additional costs will be prior to bidding or buying. Customs fees are normally charged by the shipping company or collected when you pick the item up. These fees are not additional shipping charges. We will not under-value merchandise or mark the item as a gift on customs forms. Doing so is against US and international law. Privacy Rest assured your information will not be given, sold, rented or loaned to any third party.

Audio Research LS 28 Remote Control Used for shop demo. All features are working. Some scuffs and scratches. The Listening RoomThe Listening Room is a 3rd generation brick-and-mortar 2-channel Hi-Fi shop founded by my grandfather in 1978. We offer a range of audiophile stereo systems in our Chestertown, Maryland showroom and are the largest Magnepan speaker dealer in the world. We have decades of experience configuring great sounding audio systems, and can answer any questions that you have.

You are buying an used but in great condition Audio Research LS-22 Line Stage Amplifier audiophile Tube Pre Amplifier The condition is used, it shows some cosmetic scratches on the corners as you see in pictures, however it’s in great working order has been tested. Description of Controls GAIN CONTROL: Use it to control volume. Rotation to the left attenuates gain, rotation to the right increases gain. INPUT SELECTOR: Detents indicate selection of various source material options: Tuner for AM/FM radio tuners; Video for audio input from HiFi videotapes, discs or broadcasts; Phono for phono preamplifiers: CD for compact disc players or digi-tal-to-analog processors; Aux for any additional high level source - tape, tuner, CD, video, etc. The signal source chosen by the input selector is fed to the Tape outputs. NOTE: See Monitor/Source for primary tape recorder selection. POWER SWITCH: Supplies power from AC wall outlet to LS22 when in Power position. Although not strictly necessary, it is nonetheless good practice to put the LS22 in Mute before turning on power for maximum protection of your power amplifier(s) and speakers. NOTE: “The phone option “ is for phono preamplifiers only A copy of manual is included ( not original manual) New tubes GENALEC made in Russia are installed Specifications Model LS22 FREQUENCY RESPONSE: .5dB, 1.5Hz to 100kHz -3B points below 0.1Hz and above 400kHz. DISTORTION: Less than .010% at 2V RMS output. GAIN: Main output: 18.3dB Bal., 12.7dB Unbal. Tape output: OdB. INPUT IMPEDANCE: 200K ohms Balanced, 100K ohms Unbalanced, Inputs (6): tuner, video, phono, CD, aux, tape (XLR and RCA connectors). OUTPUT IMPEDANCE: 400 ohms Balanced, 200 ohms Unbalanced main (2), 20K ohms minimum load and 2000F maximum capacitance. Outputs (3): 2 main, 1 tape (XLR and RCA connectors). MAXIMUM INPUT: 20V maximum. RATED OUTPUTS: 2V RMS 1Hz to 100kHz into 100K ohm balanced load (maximum balanced output capability is 35V RMS at less than 0.5% THD at 1kHz) CONTROLS: Gain, Input selector. Toggle switches: Power/Off, Unbalanced/Balanced input, Monitor/ Source, Mute/Operate. POWER SUPPLIES: Electronically-regulated low and high voltage supplies. Automatic 45 sec. warm-up/brown-out mute. Line regulation better than .01%. NOISE: 12uV RMS residual IHF weighted balanced noise output with gain control minimum, (104dB below 2V RMS output). TUBE COMPLEMENT: 8-6922/E88cc dual triode. (Vacuum tube audio circuit, solid-state power supply) POWER REQUIREMENTS: 100-135VAC 60Hz (200- 270VAC 50/60Hz) 90 watts maximum DIMENSIONS: 19 (48 cm) W x 514 (13.4 cm) H (standard rack panel) x 11/4 (29.8 cm) D. Handles extend 1½/2 (3.8 cm) forward of the front panel. Rear chassis fittings extend ?8 (2.3 cm). WEIGHT: 17 Ibs. (7.7 kg) Net; 27 lbs. Pictures are part of the description so please see them carefully and make your own conclusion about the item’s WHAT YOU SEE IS WHAT YOU GET Thanks for looking selling as the pictures shown. ABOUT SHIPPING Shipping Within US 48 Continental States Only ( not shipping to HAWAII , ALASKA , PUERTO RICO , VIRGIN ISLAND , PO BOX OR APO ADDRESS) will be shipped by Fedex UPS Or USPS Ground according your location with free tracking number and It will be shipped thru the address provided by eBay so please make sure it's right during checkout! Feel free to any questions. For International buyer we will use eBay Global shipping option no exceptions. ABOUT RETURN Please contact seller if you have any inconvenience with your item, before open an eBay case or leave a negative feedback (There are many ways to solve any issue) Is very important for Us make our costumers happy’s. Buy with confidence ?????TOP SELLER ????? • See other items in our eBay page!!! https://www.ebay.com/str/jarvingracestore

Completely original Audio Research Line Stage Amplifier (Hybrid Preamplifier) model LS2 (note: LS2 is model listed on packaging and owners manual; LS2B is printed on rear of unit) There are 2 unbalanced (record and main) and 2 balanced (XLR) outputs. This item is in perfect condition with all original packaging including the factory double box. This preamp is also being shipped with a high end tube made in Holland. A fully tested Amperex 6DJ8 (ECC88) is included with the item! It would be difficult to find another one quite like this! Buyer pays all shipping costs

Network 220 V.Made in USA.For sale is an Audio Research LS-7 tube preamplifier, manufactured in 1995. In perfect condition. There are no problems or complaints.Complete set, box and manual, just like from a store. The lamps were installed by the manufacturer Sovtek 6922.I will pack and ship worldwide.

Completely original Audio Research Line Stage Amplifier (Hybrid Preamplifier) model LS2 (note: LS2 is model listed on packaging and owners manual; LS2B is printed on rear of unit) There are 2 unbalanced (record and main) and 2 balanced (XLR) outputs. This item is in perfect condition with all original packaging including the factory double box. This preamp is also being shipped with a high end tube made in Holland. A fully tested Amperex 6DJ8 (ECC88) is included with the item! It would be difficult to find another one quite like this! Buyer pays all shipping costs

Everything works as intended Specifications: FREQUENCY RESPONSE: +0-3dB, 0.2Hz to 160kHz at rated output (Balanced, 200k ohms load) DISTORTION: Less than .01% at 2V RMS BAL output. GAIN: Main output: Selectable for each input: 24dB, 18dB,12dB Balanced output. (18dB, 12dB, 6dB SE output.)Record output: 0dB (Processor input: 0dB balanced). INPUT IMPEDANCE: 120K ohms Balanced, 60K ohms SE. Inputs (8): Tuner, Phono, CD, Video, Aux 1, Aux 2, Moni- tor, Processor (XLR and RCA connectors). OUTPUT IMPEDANCE: 700 ohms Balanced, 350 ohms SE Main (2), 20K ohms minimum load and 2000pF maximum capacitance. Outputs (3): 2 Main, 1 Record (XLR and RCA connectors ). OUTPUT POLARITY: Non-inverting. MAXIMUM INPUT: Low Gain: 48V RMS BAL, 24V RMS SE, Medium Gain: 24V RMS BAL, 12V RMS SE, High Gain: 12V RMS BAL, 6V RMS SE. RATED OUTPUTS: 2V RMS 1Hz to 100kHz into 200K ohm balanced load (maximum balanced output capability is 15V RMS at less than 0.5% THD at 1kHz). CONTROLS: Rotary volume selector (104 steps) and rotary input selector.Push buttons: Power, Mono, BAL / SE, Proc, Monitor, Mute. Also remote buttons: Display, Bal L, Bal R, Hours, Invert, Gain. POWER SUPPLIES: Electronically-regulated low and high voltage supplies. Automatic 50 sec. warm-up/brown-out mute. Line regulation better than .01%. NOISE: 1.3uV RMS residual IHF weighted balanced equivalent input noise with volume at 1 (100dB below 2V RMS output). TUBE COMPLEMENT: 2-6H30P dual triode, (Hybrid JFET/ tube audio circuit, solid-state power supply.) POWER REQUIREMENTS: 105-130VAC 60Hz (210- 260VAC 50/60Hz) 50 watts maximum. DIMENSIONS: 19 (48 cm) W x 5.25 (13.4 cm) H (standard rack panel) x 13.3 (33.8 cm) D. Handles extend 1.50 (3.8 cm) forward of the front panel. Important Note on Shipping: eBay estimates of shipping costs are not accurate and do not include insurance or adult signature requirement. Please contact us for a more accurate quote. No shipping to Vietnam, China or Hong Kong.Please do not submit payment until you have received an invoice from us with accurate shipping costs. We reserve the right to hold the item or cancel the transaction if actual shipping costs are not paid.

The worlds largest online retailer of pre-owned audio Product DescriptionWho we areWhat we doOur ProcessOur Policies Audio Research LS2 MkII Stereo Tube Hybrid Preamplifier; LS-2; Black Product SKU: 53353 Voltage: 120V # of Owners: 1 Service History: None Serial Number: 86052003 Age: Unknown Tobacco Exposure: No MSRP: $2650 Cosmetic Description: Very good condition with minimal visible cosmetic wear including a few minor scuffs on the top surface near the back right corner. This item shows some wear consistent with its age but is still presentable and sounds wonderful. What is Included: Preamplifier, One Sovtek 6922 tube 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 $37- 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.

Completely original Audio Research Line Stage Amplifier (Hybrid Preamplifier) model LS2 (note: LS2 is model listed on packaging and owners manual; LS2B is printed on rear of unit) There are 2 unbalanced (record and main) and 2 balanced (XLR) outputs. This item is in perfect condition with all original packaging including the factory double box. This preamp is also being shipped with a high end tube made in Holland. A fully tested Amperex 6DJ8 (ECC88) is included with the item! It would be difficult to find another one quite like this! Buyer pays all shipping costs

This Advertisement is a reprint from 1994. It is on glossy photo paper and is in Excellent condition! The Picture is the picture of the actual item. It is a beautiful piece of Audio History. I have THOUSANDS more from every major brand of Audio from 1950 up to now. ---Satisfaction is GUARANTEED at AV Archives! Take a look at my feedback for satisfied customers! I have been open since 2007 and have sold THOUSANDS of Ads, Reviews, and Brochures to satisfied customers. ---I Ship Worldwide and combine shipping, each additional item is just $1 after the first is paid. ---Each Page is 8.5 by 11 unless otherwise noted in title. ---Single Page, Single Sided Ads, unless otherwise noted in the title. ---These Ads are perfect for framing and placed in your Audio Room. ---I have a HUGE Vinyl Record Store with Thousands of Collectable records, and MANY First Pressings/Audiophile LPs. Just click on my Vinyl Record Store link on the left under categories. Email me for any specific questions, You will hear back from me usually within 4 hours, THANK YOU! Greg

Everything works as intended Specifications: FREQUENCY RESPONSE: +0-3dB, 0.2Hz to 160kHz at rated output (Balanced, 200k ohms load) DISTORTION: Less than .01% at 2V RMS BAL output. GAIN: Main output: Selectable for each input: 24dB, 18dB,12dB Balanced output. (18dB, 12dB, 6dB SE output.)Record output: 0dB (Processor input: 0dB balanced). INPUT IMPEDANCE: 120K ohms Balanced, 60K ohms SE. Inputs (8): Tuner, Phono, CD, Video, Aux 1, Aux 2, Moni- tor, Processor (XLR and RCA connectors). OUTPUT IMPEDANCE: 700 ohms Balanced, 350 ohms SE Main (2), 20K ohms minimum load and 2000pF maximum capacitance. Outputs (3): 2 Main, 1 Record (XLR and RCA connectors ). OUTPUT POLARITY: Non-inverting. MAXIMUM INPUT: Low Gain: 48V RMS BAL, 24V RMS SE, Medium Gain: 24V RMS BAL, 12V RMS SE, High Gain: 12V RMS BAL, 6V RMS SE. RATED OUTPUTS: 2V RMS 1Hz to 100kHz into 200K ohm balanced load (maximum balanced output capability is 15V RMS at less than 0.5% THD at 1kHz). CONTROLS: Rotary volume selector (104 steps) and rotary input selector.Push buttons: Power, Mono, BAL / SE, Proc, Monitor, Mute. Also remote buttons: Display, Bal L, Bal R, Hours, Invert, Gain. POWER SUPPLIES: Electronically-regulated low and high voltage supplies. Automatic 50 sec. warm-up/brown-out mute. Line regulation better than .01%. NOISE: 1.3uV RMS residual IHF weighted balanced equivalent input noise with volume at 1 (100dB below 2V RMS output). TUBE COMPLEMENT: 2-6H30P dual triode, (Hybrid JFET/ tube audio circuit, solid-state power supply.) POWER REQUIREMENTS: 105-130VAC 60Hz (210- 260VAC 50/60Hz) 50 watts maximum. DIMENSIONS: 19 (48 cm) W x 5.25 (13.4 cm) H (standard rack panel) x 13.3 (33.8 cm) D. Handles extend 1.50 (3.8 cm) forward of the front panel. Important Note on Shipping: eBay estimates of shipping costs are not accurate and do not include insurance or adult signature requirement. Please contact us for a more accurate quote. No shipping to Vietnam, China or Hong Kong.Please do not submit payment until you have received an invoice from us with accurate shipping costs. We reserve the right to hold the item or cancel the transaction if actual shipping costs are not paid.

The worlds largest online retailer of pre-owned audio Product DescriptionWho we areWhat we doOur ProcessOur Policies Audio Research LS2B MkII Stereo Tube Hybrid Preamplifier Product SKU: 58214 Voltage: 120V # of Owners: 1 Service History: None Serial Number: 66052004 Age: Unknown Tobacco Exposure: No MSRP: $2995 Cosmetic Description: Good cosmetic condition with some minor visible cosmetic wear including a few lights scuffs front handles and top cover of the unit, along with a faint mark near the rear edge of the left side surface. This item shows some wear consistent with its age but is still presentable and sounds wonderful. What is Included: Preamplifier, Remote, Electro Harmonix 6922EH tube Other Notes: This unit is the LS2B MkII, which features balanced outputs. Functional Notes: Operational condition of this item is excellent, fully tested and no issues found. Audio Research engineers were given a simple mission in designing the new LS2: create the best line stage preamplifier ever, but skip the frills. The remarkably successful outcome also happens to be affordable.... For the music lover who insists on the highest levels of performance from his audio system, and who prefers to forego unnecessary control features and their attendant expense, the LS2 meets the most stringent criteria of musicality and cost effectiveness. Its one more example of the genuine value Audio Research has built into every one of its products for the last twenty years... -Audio Research Shipping: Cost to ship this item within the contiguous United States is a flat rate of $55- 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 Audio Research LS2B MkII Stereo Tube Hybrid Preamplifier; LS-2B (No Remote) Product SKU: 53789 Voltage: 120V # of Owners: 1 Service History: None Serial Number: 63457005 Age: Unknown Tobacco Exposure: No Other Notes: Remote not included. Cosmetic Description: Good cosmetic condition with some minor visible cosmetic wear including a few minor scuffs on the top edge of the faceplate and on the top left edge surface. There is a barely visible nick on the bottom of the faceplate and near the left handle. This item shows some wear consistent with its age but is still presentable and sounds wonderful. What is Included: Preamplifier w/ attached power cable, One Sovtek 6922 tube (Remote control not included) 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 $37- 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.

Everything works as intended Specifications: FREQUENCY RESPONSE: +0-3dB, 0.2Hz to 160kHz at rated output (Balanced, 200k ohms load) DISTORTION: Less than .01% at 2V RMS BAL output. GAIN: Main output: Selectable for each input: 24dB, 18dB,12dB Balanced output. (18dB, 12dB, 6dB SE output.)Record output: 0dB (Processor input: 0dB balanced). INPUT IMPEDANCE: 120K ohms Balanced, 60K ohms SE. Inputs (8): Tuner, Phono, CD, Video, Aux 1, Aux 2, Moni- tor, Processor (XLR and RCA connectors). OUTPUT IMPEDANCE: 700 ohms Balanced, 350 ohms SE Main (2), 20K ohms minimum load and 2000pF maximum capacitance. Outputs (3): 2 Main, 1 Record (XLR and RCA connectors ). OUTPUT POLARITY: Non-inverting. MAXIMUM INPUT: Low Gain: 48V RMS BAL, 24V RMS SE, Medium Gain: 24V RMS BAL, 12V RMS SE, High Gain: 12V RMS BAL, 6V RMS SE. RATED OUTPUTS: 2V RMS 1Hz to 100kHz into 200K ohm balanced load (maximum balanced output capability is 15V RMS at less than 0.5% THD at 1kHz). CONTROLS: Rotary volume selector (104 steps) and rotary input selector.Push buttons: Power, Mono, BAL / SE, Proc, Monitor, Mute. Also remote buttons: Display, Bal L, Bal R, Hours, Invert, Gain. POWER SUPPLIES: Electronically-regulated low and high voltage supplies. Automatic 50 sec. warm-up/brown-out mute. Line regulation better than .01%. NOISE: 1.3uV RMS residual IHF weighted balanced equivalent input noise with volume at 1 (100dB below 2V RMS output). TUBE COMPLEMENT: 2-6H30P dual triode, (Hybrid JFET/ tube audio circuit, solid-state power supply.) POWER REQUIREMENTS: 105-130VAC 60Hz (210- 260VAC 50/60Hz) 50 watts maximum. DIMENSIONS: 19 (48 cm) W x 5.25 (13.4 cm) H (standard rack panel) x 13.3 (33.8 cm) D. Handles extend 1.50 (3.8 cm) forward of the front panel. Important Note on Shipping: eBay estimates of shipping costs are not accurate and do not include insurance or adult signature requirement. Please contact us for a more accurate quote. No shipping to Vietnam, China or Hong Kong.Please do not submit payment until you have received an invoice from us with accurate shipping costs. We reserve the right to hold the item or cancel the transaction if actual shipping costs are not paid.

Everything works as intended Specifications: FREQUENCY RESPONSE: +0-3dB, 0.2Hz to 160kHz at rated output (Balanced, 200k ohms load) DISTORTION: Less than .01% at 2V RMS BAL output. GAIN: Main output: Selectable for each input: 24dB, 18dB,12dB Balanced output. (18dB, 12dB, 6dB SE output.)Record output: 0dB (Processor input: 0dB balanced). INPUT IMPEDANCE: 120K ohms Balanced, 60K ohms SE. Inputs (8): Tuner, Phono, CD, Video, Aux 1, Aux 2, Moni- tor, Processor (XLR and RCA connectors). OUTPUT IMPEDANCE: 700 ohms Balanced, 350 ohms SE Main (2), 20K ohms minimum load and 2000pF maximum capacitance. Outputs (3): 2 Main, 1 Record (XLR and RCA connectors ). OUTPUT POLARITY: Non-inverting. MAXIMUM INPUT: Low Gain: 48V RMS BAL, 24V RMS SE, Medium Gain: 24V RMS BAL, 12V RMS SE, High Gain: 12V RMS BAL, 6V RMS SE. RATED OUTPUTS: 2V RMS 1Hz to 100kHz into 200K ohm balanced load (maximum balanced output capability is 15V RMS at less than 0.5% THD at 1kHz). CONTROLS: Rotary volume selector (104 steps) and rotary input selector.Push buttons: Power, Mono, BAL / SE, Proc, Monitor, Mute. Also remote buttons: Display, Bal L, Bal R, Hours, Invert, Gain. POWER SUPPLIES: Electronically-regulated low and high voltage supplies. Automatic 50 sec. warm-up/brown-out mute. Line regulation better than .01%. NOISE: 1.3uV RMS residual IHF weighted balanced equivalent input noise with volume at 1 (100dB below 2V RMS output). TUBE COMPLEMENT: 2-6H30P dual triode, (Hybrid JFET/ tube audio circuit, solid-state power supply.) POWER REQUIREMENTS: 105-130VAC 60Hz (210- 260VAC 50/60Hz) 50 watts maximum. DIMENSIONS: 19 (48 cm) W x 5.25 (13.4 cm) H (standard rack panel) x 13.3 (33.8 cm) D. Handles extend 1.50 (3.8 cm) forward of the front panel. Important Note on Shipping: eBay estimates of shipping costs are not accurate and do not include insurance or adult signature requirement. Please contact us for a more accurate quote. No shipping to Vietnam, China or Hong Kong.Please do not submit payment until you have received an invoice from us with accurate shipping costs. We reserve the right to hold the item or cancel the transaction if actual shipping costs are not paid.