Super clean and functional Audio Research LS-2 with LS2-b upgrade. Comes with all receipts including the Ls-2b upgrade. Original box, manuals. Sounds amazing! Comes with 4 extra tubes as well! Deoxed gain pot; no more scratch while adjusting volume. No returns on electronics

Super clean and functional Audio Research LS-2 with LS2-b upgrade. Comes with all receipts including the Ls-2b upgrade. Original box, manuals. Slight scratchy sound occasionally when adjusting the gain. I’m assuming a little deox and it would clear it up. Sounds amazing! Comes with 4 extra tubes as well! No returns on electronics

Audio Research LS26 amazing sounding preamp. Used working good sold as is, with 2 sets of tubes. One set is new and the other has 2K hours. Original box, remote, manual and power cord. I am selling as I moved up the Audio Research line. Shipping to continental US only, local pickup welcome.

Audio Research released the LS28 as part of its foundation series. Its heart and soul is all Audio Research. Wide open presentation, transparent vocals , sonically holographic and will make a significant improvent to most hi-end audio systems. The LS28 later received an upgrade to the LS28SE and its currently $12,000. It went through a rework and make some nice sonic improvements. With 4 balanced inputs and 4 unbalanced, it will handle even the largest of systems. This is a super clean trade and includes the original remote and box. Its been tested and sounds fantastic. If youve been looking to take you system to the next level this is a great way to do it. FEATURES:Remote controlled, fully balanced pre-ampTubed preamplifier with four sets of balanced and unbalanced inputs eachThree sets of balanced and unbalanced outputsMono / StereoInput NamingHome Theater Bypass (Called processor mode)Auto-shutdownAdjustable brightnessBalance controlFour 6H30P (dual triodes)Electronically regulated power suppliesSPECIFICATIONS FREQUENCY RESPONSE - 2Hz–200kHz, +0/–3dBMAX VOLTAGE GAIN - 12dB, balanced output; 6dB, single-ended output.DISTORTION - <0.01% at 2V RMS, balanced output.INPUT IMPEDANCE - 120k ohms balanced, 60k ohms single-ended.OUTPUT INP . - 600 ohms balanced, 300 ohms single-ended main OUTPUT POLARITY - Non-inverting.Dimensions: 19 W by 6.5H by 13.7 D. Handles extend 1.5 (38mm) forward of front panel.Weight: 16 lbs Current Retail on the LS28 SE is $12,000

Audio research LS2 line stage stereo preamp amplifier. I am the original owner of this fine pre-amplifier. The receipt shown represents the last time this unit was serviced. Since that time it has probably been operated less than 50 hours. Unit has manual and original packaging. Supplemental comment: Just to be up front, the top cover of the unit is slightly bowed downward from the use of a weighted anti-vibration device.

This is For: Audio Research LS28 Tube Preamp - Near Mint Condition - Original Box Remote & Manual Harder to find in Black Low Tube Hours - 1019 Local Pick-Up Available Ships Fedex Home - to Wisconsin 53072 Zip

Follow us| Sign up for our newsletter Audio Research LS27 Audiophile Hifi Stereo Line Stage Preamplifier Box + Remote For over 20 years High End Audio Auctions has been selling the finest HiFi online, but did you know that we BUY your HiFi equipment as well? Contact our sister company STEREOBUYERS for a fair quote today! All items included are pictured. Items are tested fully to ensure all functions work as expected - any defects and additional service done to the item are noted below. Items are not restored or reconditioned, unless specified. All items we sell come with a 30-day warranty - your satisfaction is guaranteed. Original shipping on returns will be refunded at the sellers discretion. Local Pickup in NYC Available Audio Research LS27 Details & Testing Notes Cosmetic Condition:9/10: Excellent - Light use, no visible imperfections.Functional Notes:Functions as intended and sounds excellent. Voltage:120V 50/60HzSerial #:51105701Original Box:YesManual:NoRemote:YesPower Cord:YesShipping Method:FedEx Ground (Domestic) / FedEx Economy, USPS Priority, Ebay Standard Delivery (International)Shipping Weight:24lbs (24x22x12) High-End Audio Auctions has been THE trusted source for high-end, classic and vintage audio components on eBay since 2000! Our unique products, unparalleled service and bombproof packaging keeps our customers coming back again and again. We are experts at selling and shipping worldwide, with items ranging from $5 to $50,000. We look forward to earning your repeat business! By placing a bid on any of our listings, you agree to our terms & conditions Click here to learn more Home| About Us| Store Policies| FAQs| Feedback| Contact Us| Custom Tuned Cables _gsrx_vers_1680 (GS 9.8.3 (1680))

Audio Research LS2B tube preamplifier. Custom Aluminum/Viton rubber damping feet included Unit was recently professionally serviced and I will include documentation Well cared for unit from audiophile collection that I’m downsizing and ready for a new listener Working unit from my system but as with all vintage electronics will be sold as is with no returns Unit will ship in manufacturers original double box for added safety and fully insured Pictures are the description, please feel free to ask any questions I'm a small shop and depend on ebay to pay my bills. I am human and make mistakes, so please give me the opportunity to make things right if you’re not completely satisfied. *Ebay has something called (DSR's) ‘Detailed Seller Ratings.’ It is the star system at the bottom of the feedback page. PLEASE LEAVE 5 STARS! It is very important . If there is a problem with item please contact me before opening case or leaving DSR ratings!  The way ebay has it worded, 4 stars sounds pretty darn close to perfect, but as a seller, if I don't average higher than 4.9 stars, I could lose selling privileges. Please take this into account when leaving the Shipping Handling, Item As Described, Shipping time stars and leave a 5 across the board :-) **I FOLLOW ALL EBAY POLICES AND STRIVE FOR 5-STAR SERVICE EACH AND EVERY TRANSACTION. WHEN YOU GIVE 4 STARS IT MAY SEEM LIKE A GREAT SCORE BUT, A 4 ON ANY STAR IS 4.0 AND EBAY CONSIDERS THIS A SUB-PAR MARK SINCE THE REQUIREMENT IS 4.9. IF YOU ARE PLEASED WITH THE TRANSACTION PLEASE RESPOND WITH ALL 5 STARS. IF YOU ARE NOT PLEASED LET ME KNOW AND I WILL WORK TO MAKE IT THAT WAY. Feedback: Due to recent ebay policies regarding feedback I'm dedicated to my buyers in providing a 5 star customer service rating-but I do have a life outside of this wonderful world of ebay and sometimes make mistakes- I'm human too. Please be kind to sellers and consider that they to have lives when using the new rating system. Practice patience & understanding & please give a 5-star rating on each DSR or contact me if you are not satisfied.

Follow us| Sign up for our newsletter Audio Research LS27 Audiophile Hifi Stereo Line Stage Preamplifier Box + Remote For over 20 years High End Audio Auctions has been selling the finest HiFi online, but did you know that we BUY your HiFi equipment as well? Contact our sister company STEREOBUYERS for a fair quote today! All items included are pictured. Items are tested fully to ensure all functions work as expected - any defects and additional service done to the item are noted below. Items are not restored or reconditioned, unless specified. All items we sell come with a 30-day warranty - your satisfaction is guaranteed. Original shipping on returns will be refunded at the sellers discretion. Local Pickup in NYC Available Audio Research LS27 Details & Testing Notes Cosmetic Condition:9/10: Excellent - Light use, no visible imperfections.Functional Notes:Functions as intended and sounds excellent. Voltage:120V 50/60HzSerial #:51105701Original Box:YesManual:NoRemote:YesPower Cord:YesShipping Method:FedEx Ground (Domestic) / FedEx Economy, USPS Priority, Ebay Standard Delivery (International)Shipping Weight:24lbs (24x22x12) High-End Audio Auctions has been THE trusted source for high-end, classic and vintage audio components on eBay since 2000! Our unique products, unparalleled service and bombproof packaging keeps our customers coming back again and again. We are experts at selling and shipping worldwide, with items ranging from $5 to $50,000. We look forward to earning your repeat business! By placing a bid on any of our listings, you agree to our terms & conditions Click here to learn more Home| About Us| Store Policies| FAQs| Feedback| Contact Us| Custom Tuned Cables _gsrx_vers_1680 (GS 9.8.3 (1680))

Audio Research LS28 Preamplifier Minneapolis Minnesota as good as new 1AAA+++++++ My brother was original owner. like new used only a few times and with the original box.

From an audiophile to an audiophile - you are bidding on an heirloom item, the legendary Audio Research LS2B, a tube-hybrid preamplifier with XLR and RCA inputs and outputs. Built like a Ferrari, this was a Stereophile magazine Class A recommended product. Only serious audiophile buyers please, with perfect feedback score on eBay. HISTORY: Im the second owner, the preamp has been used sporadically (Im a freelance photographer, rarely home), always kept covered when not in use, in an air conditioned and smoke-free apartment. The tube installed is Telefunken E 88CC-TK 6922 Black Diamond Series, installed in February 2021, with very little hours on it. The preamplifier has never been serviced (never needed to), and it has all original parts in it. CONDITION: Fundctional: 10Cosmetic: 9 INCLUDED: Audio Research LS2B, serial number 92052023, power cord; user manual (reprinted). This preamplifier does not have volume remore control. SHIPPING:I ship to continental USA only (no international shipping) via UPS, signature required.PAYMENT:I accept payment via PayPal only. Buyer is responsible for the shipping address; when you submit the payment via PayPal, please make sure all address information is correct. Once you submit the payment, I am not able to ship to an alternate address. NOTES: Under no circumstances does seller assume liability or responsibility for injury or damages sustained in the use or operation of this equipment or for damages to any other equipment connected to it. SPECS:FREQUENCY RESPONSE± .5dB, 1Hz to 100Hz, -3dB points below 0.1Hz and above300kHzDISTORTION (THD)Less than .01% at 2V RMS output (typically less than .005%in midband)NOISE & HUM20µV RMS residual 1HF weighted noise at main unbalancedoutput with gain at minimum (100dB below 2V RMS output). xxx Balanced inputnoise 100dB below 1V input.GAINLS2: Main Output: 18dB. Balanced output: 24dB. Tape output:0dB (Optional 12dB gain reduction). LS2 MKII: Main Output: 18dB. Balancedoutput: 24dB. Tape output: 0dB (Optional 9dB gain reduction)INPUT IMPEDANCELS2: 50K ohms. LS2: 50K ohms unbalanced, 3 megaohm balanced.OUTPUT IMPEDANCELS2: 200 ohms main output. 500 ohms Balanced 1, Balanced 2(10K ohms minimum load and 2000pF maximum capacitance). LS2 MKII: 200 ohms mainoutput. 400 ohms Balanced 1, Balanced 2 (10K ohms minimum load and 2000pFmaximum capacitance)MAXIMUM INPUTSLS2: 20V maximum. LS2 MKII: 20V maximum unbalanced, 8.5Vmaximum balanced.RATED OUTPUTSLS2: 2V RMS 1Hz to 100kHz into 60K ohm load (maximum outputcapability is 10V RMS (20V RMS balanced) output at 05% THD at 1kHz into a 10Kohm load). LS2 MKII: 2V RMS 1Hz to 100kHz into 60K ohm load (maximum outputcapability is 30V RMS (60V RMS balanced) output at 05% THD at 1kHz into a 10Kohm load)POWER SUPPLIESElectronically-regulated low and high voltage supplies. Twotransformers (toroid for high voltage). Line regulation better than .01% TUBE COMPLEMENT: 6922 POWER REQUIREMENTS100-135VAC 60Hz (200-270VAC 50/60Hz) 60 watts maximumOTHERHybrid FET/Tube audio circuit, solid-state power supplyDimensions:19 (48 cm) W x 5 ¼ (13.4cm) H (standard rackpanel) x 10 ¼ (26cm) D. Handles extend 1 ? (4.1cm) forward of frontpanel. Rear chassis fittings extend ? (2.3cm).Weight:13 lbs.Age:1992

Preamplificador AUDIO RESEARCH LS22. Incredible “pure valve” preamp from Audio Research. The last of these features. The following were mixed. The best Audio Research preamplifier up to that moment, even than the LS2 or the SP11 in the classification of the prestigious HI-CRITICS magazine Totally recap. New Tesla NOS tubes much more musical than the originals. I have the originals, too. I have the originals valves too and can be send with the preamp and listen to compare. HIFI TUNING supreme 3 fuse. Original packaging (double box). Buyer pay shipping cost It is not the version with remote control. I am selling because I pass Krell system using CAST cable

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.

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

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

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.