Woo Audio WA22 2nd gen Fully-Balanced Vacuum Tube Headphone AmplifierCLICK on YouTube DEMO Link: https://youtu.be/PZJv6EkbS0Q For your consideration. A Woo Audio WA22 2nd gen Fully-Balanced Vacuum Tube Headphone Amplifier. S/N 0818817. In VG, if not EX cosmetic condition. For a detailed look of the unit up close View listing photos & YouTube DEMO link. All service adjustments performed by a professional tech semi-retired with 45 years experience in high-end audio repairs to bring unit back to original factory specifications if not better. All products are fully tested. Faulty or under-spec components are replaced with modern high grade equivalents. Any known issues or potential weak points are rectified up-front to ensure these products continue to sing for many years to come. Looks, sounds & performs beautifully. The unit shows signs of use, and is clean and working properly. That being said, due to the age of this device & the uncertain nature of vintage electronics. This unit is being sold as pictured/described. Item will ship insured with signature required. Thanks for looking! Woo Audio WA22 Gen 2Headphone Amplifier(2018) Description The Gen 2 WA22 includes improved sonic performance and a preamplifier feature for use with a Hi-Fi system. WA22 (2nd gen) is an all-tube design, fully balanced headphone amplifier and preamplifier. The advantage of a fully balanced system is improved channel separation, more precise soundstage, and imaging. Perfectly suited for the headphone enthusiast and experienced audiophiles seeking flexibility and purest sound. Specifications Polytetrafluoroethylene (PTFE) tube sockets ALPS RK27 4-channel balanced smooth potentiometer Fully-balanced design, Class-A Power output: up to 1.5 watts per channel @32 Ohms [recommended for power demanding headphones] Transformer-coupled, Point-to-Point wiring, Pseudo-dual power supply Phase Splitter for use with unbalanced components HI / LO impedance setting XLR input x 1, RCA input x 1 Dual 3-pin XLR (left and right channel), 4-pin XLR and 1/4 (6.3mm) stereo headphone outputs XLR balanced PREAMP output (<50 ohms) Anodized aluminum chassis, available in black or silver Self-biasing with compatible tubes Dimensions: 7(H), 12(W), 10½(D) amplifier 30 lbs. Designed and assembled in New York, USA AC power cord and audio cables are not included THE PAS-2 WAS SHIPPED QUICKLY. THE PACKING WAS PROFESSIONAL. TUBE ELECTRONICS ARE HARD TO SHIP. THE PAS-2 IS AS ADVERTISED. THE VIDEO WAS HOW I DECIDED TO BUY. IT SHOWED THE OVERALL CONDITION. I WILL BE WATCHENG THE SITE FOR OTHER STUFF.Dynaco Dynakit PAS-2 Tube Stereo Preamplifier w Telefunken ECC83/12AX7 (#304827333536)Buyer: davboldu0 (45) Received item in the condition as described and advertised. Professionally packaged with good delivery. Very happy with the product and service.Perreaux SM3 Dual Channel Class A Preamplifier (#305139008018)Buyer: ali-sach (87) Very good Krell KBL good dealKrell KBL Stereo Line Preamplifier (NO POWER SUPPLY) (#305332587513)Buyer: nostromo1952usa (535) Ive done business around the world and have never experienced a more professional company to do business with. Everything is beyond expectation, shipping, packaging and product description as promoted. My turntable will accompany a McIntosh amp and speakers to its delight.Pioneer PL-530 2-Speed Fully-Automatic Direct-Drive Turntable (110/240V) (#304962274200)Buyer: amerinotes (162) A++Seller A smooth transaction all around. Item was extremely well packaged. Seller kept in touch the whole way through. Unpacked and set it up and I was transported into vinyl heaven. This 6300 responds well with the Ortofon stylus that it came with. Paired it with my 2275 receiver and thats all folks!! Thank you!Marantz 6300 2-Speed Direct-Drive Turntable S/N C050112 (#305264281555)Buyer: elviseddie72 (6234) Great seller. Continued to work with me on this and check back to verify that I was happy with the item. Great communication and fast shipping. The item was packed fantastically.Dual 1229 3-Speed Idler-Drive Turntable (#305154053621)Buyer: shaypless (60) The seller accurately described the audio equipment that I purchased. The listing included a very helpful link to a YouTube video that demonstrated the working condition of the stereo receiver which is nearly 50 years old. That video, the product description, and the listing photos were 100% accurate. The seller also took great care in packaging the equipment to ensure that no damage occurred during shipping. I am pleased with my purchase and would enthusiastically recommend the seller.McIntosh MAC1900 Stereo Receiver S/N 9X712 (Serviced & Restored) (#304828165276)Buyer: wfphillips1282012 (19) Beautiful turntable, incredible packaging, great communicator excellent excellent excellent?Thorens TD160 2-Speed Belt-Drive Suspended Chassis Turntable S/N 241559 (#304620521775)Buyer: albertotis (1190) Great seller, great communication and perfect packaging. Thanks !Sansui 9090DB Stereo AM/FM Receiver (Serviced & Restored) (#305227869279)Buyer: at9780 (18) My experience with the seller was exceptional. I was nervous about buying a turntable through the mail, but their packaging was INCREDIBLE. Soft foam to hold delicate parts in place, a separate protected box in the package for the platter, professional-level styrofoam throughout. And they messaged me about what to expect and the few steps needed to get the turntable running. Oh! And it worked perfectly out of the box =) I LOVED my experience with yesteryear_audio!Technics SL-1900 Fully-Automatic Direct-Drive Turntable S/N DA7L15A071 (#305260005516)Buyer: imajinarie (269) So sweet hurt my neck Vintage Marantz 6300 Turntable S/N 100661 J4 (#304809116581) Buyer: chrisraices1 (103) Condition was as described in the listing for this item. The packing of the receiver was above and beyond what was expected. Excellent experience with the seller +++++++++++++++++Pioneer SX-1980 AM/FM Stereo Receiver (Serviced & Restored) (#304887000852) Buyer: stif-5120 (6) Excellent piece of audio equipment, goes great with my Sansui AU-717. Works very nicely. Packing was expertly done with attention to detail. Five stars on all categories. Excellent eBay seller. Hope to do business again. Sansui TU-717 AM / FM Stereo Tuner (#304901912228) Buyer: turnhig1 (812) A++ Vintage Sansui SE-5 Stereo Graphic Equalizer (#305120410876) Buyer: stact13 (201) Aside from buying a new product from apple, this was hands down the BEST packing job ive ever seen. and when you are dealing with vintage stereo gear, that is not to be taken for granted. beautiful products sold by a most conscientious individual. VIP experience all the way. Vintage Technics SL-1301 Quartz-Locked Direct-Drive Automatic Turntable (#304821731334) Buyer: liqdmonkey (131) I would give this seller all tens if i could! promptly shipped, very reasonable shipping cost, extremely well packed and protected: turntable as advertised-plays beautiful, esp with half masters. u tube presentation was helpful in selling the product. start to finish this seller goes the extra mile. Vintage Denon DP-2000/DP-2500 Servo Controlled DD Turntable with Quartz Control (#304863399484) Buyer: red-9582 (150) Thank you so much! Integrated amplifier plays wonderfully and is in pristine cosmetic condition! Great care went into packaging and shipping! Communication was clear, helpful and very responsive. This is my second purchase from seller and look forward to purchasing again! Vintage Sansui AU-717 Stereo Integrated Amplifier (#304903269054) Buyer: kenbur_23 (10) Excellent Seller. Great communication. Turntable is exactly what was presented. Seller posted link to view turntable in action. I would recommend seller to anyone looking for classic era stereo equipment. Vintage Pioneer PL-530 2-Speed Fully-Automatic Direct-Drive Turntable (110/240V) (#304859934372) Buyer: rocketreducer (50) Order arrived fast and was packaged with impeccable care. The turntable plays beautifully and is a joy. Excellent seller, thank you! Vintage Pioneer PL-550 Quartz PLL Direct-Drive Turntable (#304905136578) Buyer: perylenegreen (14) Item as advertised, fast shipping and excellent packaging! Great seller would definitely buy again. Vintage Sansui SC-2110 Stereo Cassette Tape Deck (#304898319356) Buyer: threerialtrain (255) Item was meticulously packed and arrived safely. Couldn’t be happier with the turntable. Vintage Pioneer PL-570 Quartz PLL Direct-Drive Motor Fully-Automatic Turntable (#304880799464) Buyer: 214delta3 (246) Item extremely well packed. As described. Thank you. A vintage piece from my past has returned. Vintage Pioneer PL-560 Direct-Drive Automatic Turntable (#304701258205) Buyer: abbcoms (394) Excellent description of item; fast shipping; packed professionally!!! A+++++++++++ B&K Precision Dyna Jet 747B Solid State Dynamic Mutual Conductance Tube Tester (#304744750330) Buyer: awdiofile (262) WELL PACKED!! THANKS! Vintage Technics SL-1900 Fully-Automatic Direct Drive Turntable (#304677092361) Buyer: badc10 (679) Outstanding in every respect! Terrific product, exactly as described, great communication, meticulous care and attention to detail, and fast service! The BEST. Vintage Thorens TD160 Turntable S/N 100706 (#304620503208) Buyer: shogunassassin (659) Thank you so much! Turntable plays wonderfully! Great care went into packaging and shipping! Communication was clear, helpful and very responsive. I couldn’t be more satisfied! Vintage Technics SL-1301 Quartz-Locked Direct-Drive Automatic Turntable (#304711343082) Buyer: kenbur_23 (5) Turntable arrived early. I was very impressed with the professional packing. The 6300 is in excellent condition. Not a mark or scratch anywhere. Lid opens easily and stays open. I havent tried it yet. Its going to Vintage Audio for bench testing and refreshing. But Im positive it will just need a quick clean inside. I highly recommend this seller. Thank you for the quick shipping and safe packaging. Vintage Marantz 6300 Turntable S/N 600960 (#304553258865) Buyer: flundershouse7 (9) Item arrived quickly and as described. Packaged very well. Good seller to work with. Thank you! Century Fast Check Tube Tester - Model FC-1 (#304744694485) Buyer: powerhungryperformance (99) «:::E:::» «:::C:::» «:::S:::» «:::T:::» «:::A:::» «:::S:::» «:::Y:::» Vintage McIntosh MPI4 Tuner Maximum Performance Indicator (Serviced & Re-capped) (#304637244039) Buyer: run.exe (2500) Packaged properly the way vintage stereo equipment should be packaged and shipped. Arrived undamaged and was as good or even better than described, totally satisfied. Vintage Pioneer RT-1020H Reel to Reel Tape Deck + Extras (READ DESCRIPTION) (#304514701204) Buyer: c51stude (1962) Great experience! Beautiful and everything I thought it would be!! Vintage McIntosh MI-3 Maximum Performance Indicator (Serviced & Re-capped) (#304620495945) Buyer: n8erpaul (16) Well described item - smooth transaction Vintage KEF 104 Reference Series Speakers (#304551862911) Buyer: gosurf (937) As described, in beautiful condition. Well packaged. One very minor issue satisfactorily resolved with seller. Excellent communications! I would not hesitate to buy from again. Thank you very much! Vintage VPI HW-19 MK-2 Turntable (1983) W/O Tonearm (#373966909768) Buyer: itsonlyjim (411) MUCHAS MUCHAS GRACIAS !! :D Vintage Marantz 6300 Turntable S/N 600514 (#373913865778) Buyer: emanuelle7 (6) Absolutely the best seller of vintage audio equipment on all of eBay. Superior product, with packing like a brand new piece from the factory. BUY FROM HIM!!!!!!!!!!! Vintage Onkyo Integra M-504 Dual Mono Power Amplifier (#373945104184) Buyer: jonandbear (337) Item just as described. Packing was amazing item arrived undamaged. Great seller Vintage Marantz 6300 Turntable S/N C110139 (#304223100102) Buyer: dealsfromsocal (653) Great honest products, great prices, fast shipping. Vintage Technics SL-1350 Direct Drive Automatic Turntable. (#304307777169) Buyer: eran2son (720) Very fast shipping. Thrilled to have this rare item at a great price. Happy camper. Vintage KEF KUBE 107/2 Loudspeaker Active Equalizer (SP2163) (#304324225756) Buyer: erschm_45 (48) Great seller! Item packaged extremely well. Would buy from again. Thanks. Vintage McIntosh MC2105 Power Amplifier (Serviced & Recapped) (#304027685593) alanr1573 (536) Great response time to questions and shipping. Great packing for a fragile product. Vintage Conrad-Johnson MF-200 Power Amplifier (Serviced & Recapped) (#303694623835) wiljoh-3945 (13) Great seller! Many thanks! Vintage Nakamichi 700 ZXL Computing Cassette Deck (#304158484027) Buyer: alexspb09 (820) Excellent seller+++++. Extremely satisfied. Condition was better than expected. Outstanding packaging. Very quick shipping. I would buy from this seller again! Vintage Pioneer PL-518 Auto Return 2-Speed Direct-Drive Turntable (#303804098695) Buyer: jkuz5499 (2236) A+++++Seller! Well packaged and quick delivery. Item as described a true icon of audio history. McIntosh Forever! Vintage McIntosh C33 Solid State Stereo Preamplifier (Serviced & Recapped) (#303757416481) Buyer: reydecazadores (108) EXCELLENT SELLER! Amazing packaging, FAST SHIPPING! Wonderful communication! THANK YOU! Vintage Pioneer PL-518 Auto Return 2-Speed Direct-Drive Turntable (#303801735892) Buyer: moldenhauer_2012 (511) Item as described. Excellent condition. KEF 107/2 Reference Series Speakers Midrange/Tweeter HEADS (#303935571957) Buyer: methaneslicer (210) This is a great seller. I am so happy with my purchase! The turntable was exactly as described and beautiful. You can tell it was packed with much care when I opened the box. I wish new products were packed with as much care and precision. The seller was very easy to reach when I was tracking the package and had any questions. I would HIGHLY recommend this seller for any vintage audio needs. Vintage Thorens TD160 Turntable in Original Box (Serial #252928) (#303927982087) Buyer: daytonaeagle (39) Awesome reel to reel player, just as described. Very well packaged and speedy shipping / delivery. Excellent eBay seller! Vintage Technics RS-1500US Limited Edition Carbon Fiber R2R By J-Corder (#303927999189) Buyer: gregbeastaurora (1724) Great, item like new - Highly recommended seller and fast delivery from USA Audioquest Anaconda XLR 2M Audio Interconnects (#303783645963) Buyer: dogholmes (226) 5* AAA Item as described, packed professionally and shipped promptly Awesome ! Vintage Marantz 6300 Turntable w Empire 2000Z (#303914102628) Buyer: scubacuda (420) Exactly as described. Great packaging.. A+ Seller! Vintage Thorens TD160 Turntable (#303902053101) Buyer: cardlover33 (594) Very Nice B4 TT Packed Perfect. Would buy from this seller again FIVE STARS***** Vintage Yamaha YP-B4 Fully Automatic Turntable w Ortofon M20FL Super Cartridge (#303886182006) Buyer: craigs_jazz_bass (785) As advertised. Great packing Vintage Sansui 9090 AM/FM Stereo Receiver (1975-77) (Serviced & Recapped) (#303826634395) Buyer: mitchpinion (647) A dream come true, better than new! Secure packaging, works perfectly! Vintage Kenwood KR-9600 AM/FM Stereo Monster Receiver (Serviced & Recapped) (#303832633192) Buyer: jag946 (105) A+++ PERIOD!! From the best electronic packing I have ever received to the unit Vintage McIntosh MA6100 Integrated Amplifier Serial #P8346 (Serviced & Recapped) (#303595244857) Buyer: rogersdmj55 (461) A Great Vintage McIntosh MA6100! Fast & Secure Shipment! Ideal Ebay Seller! A++ Vintage McIntosh MA6100 Integrated Amplifier Serial #AE492 (Serviced & Recapped) (#303651956274) Buyer: denwdnboat (1056) A Great Vintage McIntosh MR78! Fast & Secure Shipment! Ideal Ebay Seller! A++ Vintage McIntosh MR78 Stereo Tuner (Serviced & Recapped) (#303717964675) Buyer: denwdnboat (1056) Thank u! Love it!!! Vintage Marantz WC-9 NOS (New Old Stock) UNSEALED IN BOX Wood Cabinet/Case (#303539945327) Buyer: nalamopep7 Item arrived as described thank you Vintage NOS (New Old Stock) Marantz WC-43 Wood Cabinet/Case (#303506472888) Buyer: buyguy54 Item was as described and seller had outstanding communication! Vintage Bell Carillon 6060 Tube Amp (Professionally Serviced/Recapped/Re-tubed) (#303528395961) Buyer: yoderfam2012 Perfect in every way !!! Vintage Marantz 4270 Receiver Pro/Serviced & Recapped + LED Upgrade & WC-22 (#303400740547) Buyer: briakoppenhave0 Great seller. Arrived quickly. Packaged VERY well. Vintage Pioneer PL-560 Turntable with Stanton 680EE Cartridge & NEW Stylus (#303382638216) Buyer: sledgeaw Nice clean unit, works great so far Vintage Pioneer SPEC-2 Rack Mount Stereo Power Amplifier (3 Line Voltage Model) (#303423883114) Buyer: mmicman WOW! AAA+ Symposium Acoustics ULTRA Energy Absorption Platforms 19 x 14 (#303373067498) Buyer: mobybay Excellent seller! Exactly as described, well packed, insured, A+ follow-through! Vintage Pioneer SX-1010 Stereo Receiver (Serviced & Recapped + LED) (#303530402736) Buyer: bwkelley76 Incredible. The Amp is beautiful--pristine. Packing was beyond excellent. A+++ Vintage McIntosh MC 250 Solid State Stereo Power Amplifier (Serviced & Recapped) (#303604062495) Buyer: gcapny Knows how to pack stereo equipment. Vintage Mcintosh MA5100 Solid State Stereo Integrated Amplifier w Case & Panloc (#303437586171) Buyer: gcar1656 Great transaction, fantastic turntable, top notch packing! Vintage Thorens TD160 Turntable with Stanton Cartridge in Original Box (#303617872234) Buyer: markguinness Very happy with the record player Vintage Thorens TD160 Turntable with Ortofon Cartridge (#303591028230) Buyer: mitcba-40 Item as described, fast shipping, great communication & packing. Thanks! Vintage Pioneer PL-530 Turntable with Audio Technica AT14Sa Cartridge (#303613562133) Buyer: briansshellacshack Great purchase!! Super helpful when I asked questions Vintage Thorens TD160 Turntable with Grado Cartridge (#303581989275) Buyer: jube821 Quick and efficient. Product as described. Conrad-Johnson PV10A Stereo Tube Preamplifier With Phono Stage (#303562482278) Buyer: davimaru Excellent service Vintage McIntosh MAC 1700 Stereo Receiver w Wood Case (Serviced & Recapped) (#303566880675) Buyer: harley9eleven Would buy again from here Vintage Pioneer SPEC-1 Rack Mount Stereo Preamplifier (3 Line Voltage Model) (#303423834381) Buyer: yorkcarolrn Excellent transaction. I’m now in heaven with my new vintage receiver! Vintage Marantz 2270 Stereophonic Receiver (Serviced & Recapped + LED Upgrade) (#303588364214) Buyer: ksf442 Turntable packaged with detail and care. It works and sounds great. A+ seller Vintage H.H. Scott PS-87A Direct Drive Fully Automatic Turntable in Original Box (#303551572059) Buyer: zsfhawgs Item was as described. Fast shipping, and great seller communication! Vintage Marantz Model 6350Q w Shure V15 Type IV & NEW Jico VN-45HE Stylus (#303401938187) Buyer: yoderfam2012 Item 100% as advertised / Fast Shipping / Safe Shipping / Very Happy / A+++ Vintage Sony CDP-X555ES Compact Disc Player (#303581875203) Buyer: jermaster2011 Fast service. Always a pleasure to deal with. Vintage Marantz 2440 Quadradial 4 Adaptor Amplifier (#303581923887) Buyer: retiredfirefighter1 Exactly as described, very professional packing. Vintage Technics SL-1900 Fully-Automatic Direct-Drive Turntable NO CARTRIDGE (#303533649155) Buyer: jacoblovins2012 Super fast shipping, well packed, better condition than description will definiw Tannoy 12 Monitor HPD 315 Dual Concentric Drivers & Crossovers (#303546057249) Buyer: williamblaak The packing job was exceptional! My turntable was even better than described. (Private listing) Buyer: thask801_6 Good item and fast shipping ! thanks!!! Klyne SK-2A Moving Coil Preamp Step Up MC Preamplifier Head Amp + Manual (#303531778704) Buyer: cherry77777 A+++ Fantastic seller! Fast shipping! Well packed! Awesome. Thank you very much!! Vintage Marantz 2325 Pro Serviced & Recapped + LED Upgrade & Original Boxes (#303508296342) Buyer: miko00777 Fast Shipper!! Item As Described. Works Beautifully. Thanks!!! Vintage Technics SL-1900 Turntable w Pickering XSV-3000 & D3000 (#303370403737) Buyer: musiqman34 This seller is the most honest and profesional I have dealt with on ebay Vintage Luxman SQ-707 Solid State Stereo Integrated Amplifier (#303552358482) Buyer: lickdenstein As advertised. Expert packing and great communication. Vintage McIntosh MA6100 Integrated Amplifier (Professionaly Serviced & Recapped) (#303538133604) Buyer: piefra-86 Arrived quickly, items packed and padded perfectly. Transparent communication. Vintage Technics SL-1301 Quartz Lock Direct Drive Automatic 120V/240V Turntable (#303356004338) Buyer: hammond823 Well packaged and as described - thank you Vintage Nakamichi DR-3 Audiophile Professional Cassette Deck (#303274442807) Buyer: josiahmdanieliv Great seller, amp was cleaner than expected and works fine. A+++ all the way Vintage AIMS VTB-120 1970s Bass/Guitar Tube Amp - 120 watts - Made in the USA (#303515606026) Buyer: mongo-lloyds-of-london AAAAA+++++Well packed,fast shipping,item as described. Thanks! Vintage McIntosh MC2100 Stereo Power Amplifier (Serviced/Recapped) (#303514585192) Buyer: sbaggs2010

Woo Audio WA22 Balanced Vacuum Tube Headphone Amplifier in great condition, fully tested to spec. at Audio Classics Ltd.Packed with care to arrive safely.

Up for sale is one of my favorite headphone amplifiers. The Woo Audio WA22 balanced tube headphone amplifier - 2nd generation.I recently acquired the black version to better match my components so I am now selling the silver version.The amplifier has been upgraded with Mundorf EVO Silver Gold Oil capacitors which provide better overall tone with more clarity and top end sparkle. Original Vishay capacitors are included. The Mundorf are rated 450V while the stock caps are only 250V so expect this upgrade to equal or better the original components. The stock values of 0.47uF were maintained.I have installed all new tubes which are NOS GE 6080WA power tubes, Tung-Sol 6SN7 matched preamp tubes, and Sovtek 5AR4 balanced rectifier which provides soft start and a little firmer response from the amplifier. A 5U4G rectifier tube can be substituted if you prefer. Includes original box. From the manufacturer (stock photos of black version: Originally introduced in 2009, WA22 has been an audiophile favorite. New for 2018 is improved sonic performance and preamplifier feature for use with a Hi-Fi system. WA22 (2nd gen) is an all-tube design, fully balanced headphone amplifier and preamplifier. The advantage of a fully balanced system is improved channel separation, more precise soundstage, and imaging. Perfectly suited for the headphone enthusiast and experienced audiophiles seeking flexibility and purest sound.Updated to 2nd generation in March 2018Tubes: 6SN7 driver x 2, 6080 power x 2, 5U4G rectifier x 1Polytetrafluoroethylene (PTFE) tube socketsALPS RK27 4-channel balanced smooth potentiometerFully-balanced design, Class-APower output: up to 1.5 watts per channel @32 Ohms [recommended for power demanding headphones] Transformer-coupled, Point-to-Point wiring, Pseudo-dual power supplyPhase Splitter for use with unbalanced componentsHI / LO impedance settingXLR input x 1, RCA input x 1Dual 3-pin XLR (left and right channel), 4-pin XLR and 1/4 (6.3mm) stereo headphone outputsXLR balanced PREAMP output (<50 ohms)Anodized aluminum chassis, available in black or silverSelf-biasing with compatible tubes [chart]Dimensions: 7(H), 12(W), 10½(D) amplifier 25 lbs.Designed and assembled in New York, USAThree-year limited warranty [learn more]Highlights

Woo Audio WA22 Balanced headphone Tube Amplifier. Tubes: 6SN7 driver x 2, 6080 power x 2, 5U4G rectifier x 1Polytetrafluoroethylene (PTFE) tube socketsALPS RK27 4-channel balanced smooth potentiometerFully-balanced design, Class-APower output: up to 1.5 watts per channel @32 Ohms [recommended for power demanding headphones] Transformer-coupled, Point-to-Point wiring, Pseudo-dual power supplyPhase Splitter for use with unbalanced componentsHI / LO impedance settingXLR input x 1, RCA input x 1Dual 3-pin XLR (left and right channel), 4-pin XLR and 1/4 (6.3mm) stereo headphone outputsXLR balanced PREAMP output (<50 ohms)Anodized aluminum chassis, available in black or silverSelf-biasing with compatible tubes [chart]Dimensions: 7(H), 12(W), 10½(D) amplifier 25 lbs.Designed and assembled in New York, USAThree-year limited warranty [learn more] Highlights