Krell 3-Channel KAV-3250 Amplifier - For Parts or Repair **Condition:** This unit is being sold as-is, for parts or repair. It powers on but exhibits a hum when connected to speakers and does not pass sound. Visual inspection reveals no obvious issues, and all fuses are intact. This amplifier is ideal for those who are technically inclined and can potentially restore it to full functionality. Please note that we do not provide ongoing technical support for repairs. Technical SpecificationsThe Krell KAV-3250 is a high-end, three-channel power amplifier known for its powerful output and detailed sound. This unit delivers 250 watts per channel into 8 ohms, and 500 watts per channel into 4 ohms. The amplifier is equipped with a massive 2kVA toroidal-transformer supply, ensuring robust and clean power delivery. It supports both balanced (XLR) and unbalanced (RCA) inputs, providing flexibility for various audio setups. We have tested this device and it powers on, but it does not pass sound. Further details below: Output Power: 250W per channel into 8 ohms, 500W per channel into 4 ohms Input Sensitivity: 2.32 Vrms Signal to Noise Ratio: >112 dB A weighted Dimensions: 17.3 W x 5.6 H x 17.1 D Weight: 68 lbs (unit), 78 lbs (shipping) Includes: Power Cable R2V3: F2C3 Customer Service Contact Information: Reach out to us anytime through eBay messages for inquiries, comments, or product requests. eBay messages is the recommended channel. Business Hours: Monday-Friday 8:00 AM-5:00 PM PST, Saturday 11 AM - 3 PM. Closed on most US bank holidays. Expect a response within 1 business day. Making an Offer: Offers will only be considered if submitted through eBays Make Offer function, and only for items where this feature is enabled. Due to the large volume of messages about offers, we will not be able to respond to messages regarding offers. However, reasonable offers submitted using the tool will be considered. Policies: Our shipping, payment, and other policies are on our eBay stores about page. We recommend checking them periodically for updates. Commitment: We prioritize customer satisfaction, offering quick shipping and a 30-day money-back guarantee. Item Details: While we aim for clear product descriptions, we don?t offer detailed support for individual items. Please note, all products may lack manufacturer warranties. Returns are based on eBays policy within a 30-day window. We don?t disclose individual item details like service tags, serial numbers, etc. We do not provide ongoing technical support. Shipping and Local Pickup Shipping Exclusions: We dont ship on Saturdays, Sundays, or holidays. International shipping is through eBays International Shipping Program. Some items might have shipping restrictions. For domestic shipping, expect your item to be shipped within the next business day post payment clearance. Shipping Charges: Shipping fees are non-refundable unless an item offers free shipping. Typically, we utilize the FedEx for eBay shipping program. Combined Shipping: Orders are combined for environmental and cost efficiency. Splitting orders into multiple boxes isnt possible. Local Pickup: Items can be picked up for free at our Portland location. After checkout and a minimum two-hour wait, instructions for pickup will be sent. Pickup hours mirror our business hours, excluding holidays. Product Return Policy Quality Assurance: As an R2V3 compliant recycler, we ensure products match descriptions, testing and inventorying each, barring some vintage items. Returns: Contact us via eBay for any discrepancies or non-functioning products within 30 days of receipt. Full refunds are issued upon receiving and verifying the returned item. We do NOT offer partial refunds or exchanges for any reason. Please return the product for a full refund. Condition of Returned items. We follow the eBay policy regarding the condition of returned items. Each item is inspected carefully upon its return, Testing notes and physical description are checked against logs to ensure the item has been returned in the same condition in which it was shipped. Items returned in a damaged condition may be subject up to 50% reduction in the return. A great example of this would be buying a motherboard from us that has documented as tested and working, the pins of the board have been recorded as intact but when the motherboard is returned, the pins are damaged from buyer damage, such as dropping a CPU onto the pin area. This board would be only partially refunded. The damage would be documented and the incident reported to eBay. Please select the correct reason you are returning the item. If the item is not as described please provide details, if the item was damaged in shipping, provide details, and photos of the shipping materials. ON LAPTOPS/DESKTOPS: Changing hardware, or reinstalling the operating system will void this 30 day warranty, the warranty applies to the item you are buying, in the condition that it is in at the time of listing. It is the buyers responsibility to review and understand the eBay policies and user agreement. We provide a 30 day money back return policy on items not as described or nonworking. We DO NOT, provide partial refunds or parts, or labor from 3rd party vendors or services. Please contact us for RMA. Shipping for Returns: Shipping fees for returns arent covered by us unless specified. For international returns via the eBay Global Shipping Program, buyers cover return shipping, taxes, and import fees. Purchases made outside of this program using domestic freight forwarders should note that the 30-day return starts upon arrival at the forwarding location. Procedure: To assist us in processing returns efficiently, provide the serial number, describe the issue, and attach photos of the item (with our inventory label/serial number) and its packaging. Environment Concern: Were conscious of the environmental impact of returns, which produce significant carbon dioxide emissions. Hence, buyers remorse or changes of mind arent accepted per eBay policy. Compliance: All returns adhere to eBays Condition of returned items policy and the Abusive Buyer Policy. We maintain comprehensive records of our products, including serial numbers, to ensure compliance and optimize customer experience. R2v3 Testing and Grading We are an R2V3 certified facility. All items are tested for functionality as per R2v3 standard and listed as. We use the R2v3 R2 Equipment Categorization (REC) for item grading and to assign the cosmetic, functional, and data sanitization status to Collectible and Specialty Electronics, and Functional Products. Cosmetic Description Grades C0 | Not categorized C1 | Damaged (For materials recovery) C2 | Used Poor ? Heavy use and age · Cosmetic blemishes are significant, such as multiple heavy dents, may require repair · Damages to latches, hinges, keyboards, etc. are prevalent · Critical parts are missing C3 | Used Fair (Moderate use and age) · Cosmetic blemishes are consistent with wear, including multiple dents, discoloration, and light to heavy scratches · Damage to latches, hinges, keyboards, etc. · Some parts, panels, bezels, or covers may be missing C4 | Used Good · Cosmetic blemishes include scratches and/or other surface imperfections from consistent use, but equipment is in good condition overall · Minor wear of labeling may be visible · Small dents and small areas of discoloration may be present from the removal of tags · No damage to latches or hinges, nor any missing parts, panels, bezels, or covers C5 | Used Very Good · Cosmetic blemishes include minor scratches and/or other surface imperfections from consistent use, but equipment is in good condition · Minor wear of labeling may be visible · Minor dents and areas of discoloration from the removal of tags · No missing parts C6 | Used Excellent · Overall excellent cosmetic condition · May have light scratches or other minor blemishes from normal wear · Minor cosmetic blemishes have no impact on the system?s overall functionality or performance · Fully cleaned with all non-original labels removed · No missing parts C7 | Certified Pre-Owned (Seller or Manufacturer Refurbished) · Used equipment that has been fully restored to like-new condition with warranty · Fully cleaned and cosmetically repaired with no blemishes · No missing parts C8 | Unused · New, out of box, unused equipment removed from original packaging with no signs of wear or alteration C9 | New Open Box · New, unused equipment in original packaging where factory seals have been broken · No signs of wear or alteration Functionality Description Grades F1 | Collectible or Specialty Equipment · Collectibles are rare, vintage, and no longer manufactured or supported by the OEM · Specialty equipment are rare and specialized equipment not generally available in retail · May have broken or missing parts F2 | Verified Specialty Electronics · Verified removed from operation with no known defects in functionality · No physical damage or defects · No corrosion · No missing parts · Part numbers and serial numbers verified accurate F3 | Key Functions Working · A subset of the primary functions of the device that an ordinary user of the device expects to function are verified working through manual or software tests · Software may not be loaded or configured · Hardware required for key functions to be tested may have been removed after testing (e.g. Hard Drive) · May be missing components or parts not essential to key functions · Secondary functions may not be tested or working · May not include Focus Materials (e.g. Battery) that are not working or not tested · All missing components or parts will be listed for each item F4 | Hardware Functional · All hardware is tested and verified working through manual or software tests · No missing or damaged components or parts · Software not loaded or configured · No hardware defects F5 | Refurbished · All functions tested and verified working through software tests · Loaded and configured with legally licensed software for full operations · Software test results are available · No hardware or software defects F6 | Like New · All functions tested and verified working through software tests · Repaired with OEM original parts · Loaded and configured with original manufacturer?s legally licensed software for full operation · Meets OEM specifications for full original functionality · Software test results are available · Zero defects More information about these testing standards that we use can be found on the SERI website.

Edwards Home Entertainment and Design, an appointed and displaying dealer for Luxman, Magico, AudioQuest Summit (Dragon), McIntosh, Bowers & Wilkins, Focal, NAIM, Classe Audio - Delta, Rotel and Michi, Rel Acoustics, JL Audio, Perlisten, Marantz, Rose HiFi, Nordost, as well as part of the Verified Premier Dealer Program on AudioGon, is offering this Krell KAV-3250 amplifier. This amp is in good functional shape and physical shape. Heavy, for sure.Buy / Sell / Trade / Consign - Edwards Home Entertainment and Design (EHEAD) has been a premier seller of carefully selected, pre-loved high end audio equipment since 1997 and is now an authorized dealer for McIntosh (displaying C2700, C22, C12000, MC462, MC275vi, MC1.25s, MEN220, MT-10, MT-5, MA12000, MA352, MA252, MPC500, MPC1500, MHA200, speakers and interconnect cabling), Bowers & Wilkins (displaying 801D4, 802D4, 803D4, 804D4,805D4, 702S3), Focal (displaying Scala EVO, Sopra3, Sopra2), NAIM (displaying the SuperNAIT3), Rotel Michi (displaying the P5s2, S5, X3s2), Classe Delta (displaying the Delta Pre, Delta Stereo, Delta Monos), HiFiROSE (displaying the RS150, RS250 and RS520), Marantz (displaying PM-10 Integrated, SA-10 Super Audio SACD/CD Player, TT-15S2 TurnTable), Rel Acoustics (displaying the Carbon Special, S/812, S/512, and T9/x), Perlisten (displaying the S7t and D212), JL Audio (displaying the G213v2, F113v2, D and E subs), Soul Note (displaying the A2 integrated), Nordost (displaying Norse and Leif series, with demo cases for in home trials), AudioQuest (displaying all power centers, 7000, 5000, 3000, Thunderbird, Black Beauty, Pegasus cabling), SolidSteel (displaying HyperSpike stands and amp stands), NEO Luxury Audio Racks (displaying the Quattron), Bossocontinuo (displaying the McRack) Reference. Visit the EHEADAudio com site in South San Francisco, CA for direct phone (begins with 925) / voice / text support. We are always looking to buy quality used gear. Despite listings that may indicate LOCAL PICK UP ONLY - this is just to facilitate posting of gear. Logistics is our specialty, we can facilitate packaging and shipping to and from anywhere in the country. If you are interested in our gear, please reach out and we can figure out a shipping solution that will work. Our shop is in South San Francisco - stop by and put your eyes and ears to work!

Edwards Home Entertainment and Design, an appointed and displaying dealer for Luxman, Magico, AudioQuest Summit (Dragon), McIntosh, Bowers & Wilkins, Focal, NAIM, Classe Audio - Delta, Rotel and Michi, Rel Acoustics, JL Audio, Perlisten, Marantz, Rose HiFi, Nordost, as well as part of the Verified Premier Dealer Program on AudioGon, is offering this Krell KAV-3250 amplifier. This amp is in good functional shape and physical shape. Heavy, for sure.Buy / Sell / Trade / Consign - Edwards Home Entertainment and Design (EHEAD) has been a premier seller of carefully selected, pre-loved high end audio equipment since 1997 and is now an authorized dealer for McIntosh (displaying C2700, C22, C12000, MC462, MC275vi, MC1.25s, MEN220, MT-10, MT-5, MA12000, MA352, MA252, MPC500, MPC1500, MHA200, speakers and interconnect cabling), Bowers & Wilkins (displaying 801D4, 802D4, 803D4, 804D4,805D4, 702S3), Focal (displaying Scala EVO, Sopra3, Sopra2), NAIM (displaying the SuperNAIT3), Rotel Michi (displaying the P5s2, S5, X3s2), Classe Delta (displaying the Delta Pre, Delta Stereo, Delta Monos), HiFiROSE (displaying the RS150, RS250 and RS520), Marantz (displaying PM-10 Integrated, SA-10 Super Audio SACD/CD Player, TT-15S2 TurnTable), Rel Acoustics (displaying the Carbon Special, S/812, S/512, and T9/x), Perlisten (displaying the S7t and D212), JL Audio (displaying the G213v2, F113v2, D and E subs), Soul Note (displaying the A2 integrated), Nordost (displaying Norse and Leif series, with demo cases for in home trials), AudioQuest (displaying all power centers, 7000, 5000, 3000, Thunderbird, Black Beauty, Pegasus cabling), SolidSteel (displaying HyperSpike stands and amp stands), NEO Luxury Audio Racks (displaying the Quattron), Bossocontinuo (displaying the McRack) Reference. Visit the EHEADAudio com site in South San Francisco, CA for direct phone (begins with 925) / voice / text support. We are always looking to buy quality used gear. Despite listings that may indicate LOCAL PICK UP ONLY - this is just to facilitate posting of gear. Logistics is our specialty, we can facilitate packaging and shipping to and from anywhere in the country. If you are interested in our gear, please reach out and we can figure out a shipping solution that will work. Our shop is in South San Francisco - stop by and put your eyes and ears to work!

Edwards Home Entertainment and Design, an appointed and displaying dealer for Luxman, Magico, AudioQuest Summit (Dragon), McIntosh, Bowers & Wilkins, Focal, NAIM, Classe Audio - Delta, Rotel and Michi, Rel Acoustics, JL Audio, Perlisten, Marantz, Rose HiFi, Nordost, as well as part of the Verified Premier Dealer Program on AudioGon, is offering this Krell KAV-3250 amplifier. This amp is in good functional shape and physical shape. Heavy, for sure.Buy / Sell / Trade / Consign - Edwards Home Entertainment and Design (EHEAD) has been a premier seller of carefully selected, pre-loved high end audio equipment since 1997 and is now an authorized dealer for McIntosh (displaying C2700, C22, C12000, MC462, MC275vi, MC1.25s, MEN220, MT-10, MT-5, MA12000, MA352, MA252, MPC500, MPC1500, MHA200, speakers and interconnect cabling), Bowers & Wilkins (displaying 801D4, 802D4, 803D4, 804D4,805D4, 702S3), Focal (displaying Scala EVO, Sopra3, Sopra2), NAIM (displaying the SuperNAIT3), Rotel Michi (displaying the P5s2, S5, X3s2), Classe Delta (displaying the Delta Pre, Delta Stereo, Delta Monos), HiFiROSE (displaying the RS150, RS250 and RS520), Marantz (displaying PM-10 Integrated, SA-10 Super Audio SACD/CD Player, TT-15S2 TurnTable), Rel Acoustics (displaying the Carbon Special, S/812, S/512, and T9/x), Perlisten (displaying the S7t and D212), JL Audio (displaying the G213v2, F113v2, D and E subs), Soul Note (displaying the A2 integrated), Nordost (displaying Norse and Leif series, with demo cases for in home trials), AudioQuest (displaying all power centers, 7000, 5000, 3000, Thunderbird, Black Beauty, Pegasus cabling), SolidSteel (displaying HyperSpike stands and amp stands), NEO Luxury Audio Racks (displaying the Quattron), Bossocontinuo (displaying the McRack) Reference. Visit the EHEADAudio com site in South San Francisco, CA for direct phone (begins with 925) / voice / text support. We are always looking to buy quality used gear. Despite listings that may indicate LOCAL PICK UP ONLY - this is just to facilitate posting of gear. Logistics is our specialty, we can facilitate packaging and shipping to and from anywhere in the country. If you are interested in our gear, please reach out and we can figure out a shipping solution that will work. Our shop is in South San Francisco - stop by and put your eyes and ears to work!

Edwards Home Entertainment and Design, an appointed and displaying dealer for Luxman, Magico, AudioQuest Summit (Dragon), McIntosh, Bowers & Wilkins, Focal, NAIM, Classe Audio - Delta, Rotel and Michi, Rel Acoustics, JL Audio, Perlisten, Marantz, Rose HiFi, Nordost, as well as part of the Verified Premier Dealer Program on AudioGon, is offering this Krell KAV-3250 amplifier. This amp is in good functional shape and physical shape. Heavy, for sure.Buy / Sell / Trade / Consign - Edwards Home Entertainment and Design (EHEAD) has been a premier seller of carefully selected, pre-loved high end audio equipment since 1997 and is now an authorized dealer for McIntosh (displaying C2700, C22, C12000, MC462, MC275vi, MC1.25s, MEN220, MT-10, MT-5, MA12000, MA352, MA252, MPC500, MPC1500, MHA200, speakers and interconnect cabling), Bowers & Wilkins (displaying 801D4, 802D4, 803D4, 804D4,805D4, 702S3), Focal (displaying Scala EVO, Sopra3, Sopra2), NAIM (displaying the SuperNAIT3), Rotel Michi (displaying the P5s2, S5, X3s2), Classe Delta (displaying the Delta Pre, Delta Stereo, Delta Monos), HiFiROSE (displaying the RS150, RS250 and RS520), Marantz (displaying PM-10 Integrated, SA-10 Super Audio SACD/CD Player, TT-15S2 TurnTable), Rel Acoustics (displaying the Carbon Special, S/812, S/512, and T9/x), Perlisten (displaying the S7t and D212), JL Audio (displaying the G213v2, F113v2, D and E subs), Soul Note (displaying the A2 integrated), Nordost (displaying Norse and Leif series, with demo cases for in home trials), AudioQuest (displaying all power centers, 7000, 5000, 3000, Thunderbird, Black Beauty, Pegasus cabling), SolidSteel (displaying HyperSpike stands and amp stands), NEO Luxury Audio Racks (displaying the Quattron), Bossocontinuo (displaying the McRack) Reference. Visit the EHEADAudio com site in South San Francisco, CA for direct phone (begins with 925) / voice / text support. We are always looking to buy quality used gear. Despite listings that may indicate LOCAL PICK UP ONLY - this is just to facilitate posting of gear. Logistics is our specialty, we can facilitate packaging and shipping to and from anywhere in the country. If you are interested in our gear, please reach out and we can figure out a shipping solution that will work. Our shop is in South San Francisco - stop by and put your eyes and ears to work!

Edwards Home Entertainment and Design, an appointed and displaying dealer for Luxman, Magico, AudioQuest Summit (Dragon), McIntosh, Bowers & Wilkins, Focal, NAIM, Classe Audio - Delta, Rotel and Michi, Rel Acoustics, JL Audio, Perlisten, Marantz, Rose HiFi, Nordost, as well as part of the Verified Premier Dealer Program on AudioGon, is offering this Krell KAV-3250 amplifier. This amp is in good functional shape and physical shape. Heavy, for sure.Buy / Sell / Trade / Consign - Edwards Home Entertainment and Design (EHEAD) has been a premier seller of carefully selected, pre-loved high end audio equipment since 1997 and is now an authorized dealer for McIntosh (displaying C2700, C22, C12000, MC462, MC275vi, MC1.25s, MEN220, MT-10, MT-5, MA12000, MA352, MA252, MPC500, MPC1500, MHA200, speakers and interconnect cabling), Bowers & Wilkins (displaying 801D4, 802D4, 803D4, 804D4,805D4, 702S3), Focal (displaying Scala EVO, Sopra3, Sopra2), NAIM (displaying the SuperNAIT3), Rotel Michi (displaying the P5s2, S5, X3s2), Classe Delta (displaying the Delta Pre, Delta Stereo, Delta Monos), HiFiROSE (displaying the RS150, RS250 and RS520), Marantz (displaying PM-10 Integrated, SA-10 Super Audio SACD/CD Player, TT-15S2 TurnTable), Rel Acoustics (displaying the Carbon Special, S/812, S/512, and T9/x), Perlisten (displaying the S7t and D212), JL Audio (displaying the G213v2, F113v2, D and E subs), Soul Note (displaying the A2 integrated), Nordost (displaying Norse and Leif series, with demo cases for in home trials), AudioQuest (displaying all power centers, 7000, 5000, 3000, Thunderbird, Black Beauty, Pegasus cabling), SolidSteel (displaying HyperSpike stands and amp stands), NEO Luxury Audio Racks (displaying the Quattron), Bossocontinuo (displaying the McRack) Reference. Visit the EHEADAudio com site in South San Francisco, CA for direct phone (begins with 925) / voice / text support. We are always looking to buy quality used gear. Despite listings that may indicate LOCAL PICK UP ONLY - this is just to facilitate posting of gear. Logistics is our specialty, we can facilitate packaging and shipping to and from anywhere in the country. If you are interested in our gear, please reach out and we can figure out a shipping solution that will work. Our shop is in South San Francisco - stop by and put your eyes and ears to work!

Edwards Home Entertainment and Design, an appointed and displaying dealer for Luxman, Magico, AudioQuest Summit (Dragon), McIntosh, Bowers & Wilkins, Focal, NAIM, Classe Audio - Delta, Rotel and Michi, Rel Acoustics, JL Audio, Perlisten, Marantz, Rose HiFi, Nordost, as well as part of the Verified Premier Dealer Program on AudioGon, is offering this Krell KAV-3250 amplifier. This amp is in good functional shape and physical shape. Heavy, for sure.Buy / Sell / Trade / Consign - Edwards Home Entertainment and Design (EHEAD) has been a premier seller of carefully selected, pre-loved high end audio equipment since 1997 and is now an authorized dealer for McIntosh (displaying C2700, C22, C12000, MC462, MC275vi, MC1.25s, MEN220, MT-10, MT-5, MA12000, MA352, MA252, MPC500, MPC1500, MHA200, speakers and interconnect cabling), Bowers & Wilkins (displaying 801D4, 802D4, 803D4, 804D4,805D4, 702S3), Focal (displaying Scala EVO, Sopra3, Sopra2), NAIM (displaying the SuperNAIT3), Rotel Michi (displaying the P5s2, S5, X3s2), Classe Delta (displaying the Delta Pre, Delta Stereo, Delta Monos), HiFiROSE (displaying the RS150, RS250 and RS520), Marantz (displaying PM-10 Integrated, SA-10 Super Audio SACD/CD Player, TT-15S2 TurnTable), Rel Acoustics (displaying the Carbon Special, S/812, S/512, and T9/x), Perlisten (displaying the S7t and D212), JL Audio (displaying the G213v2, F113v2, D and E subs), Soul Note (displaying the A2 integrated), Nordost (displaying Norse and Leif series, with demo cases for in home trials), AudioQuest (displaying all power centers, 7000, 5000, 3000, Thunderbird, Black Beauty, Pegasus cabling), SolidSteel (displaying HyperSpike stands and amp stands), NEO Luxury Audio Racks (displaying the Quattron), Bossocontinuo (displaying the McRack) Reference. Visit the EHEADAudio com site in South San Francisco, CA for direct phone (begins with 925) / voice / text support. We are always looking to buy quality used gear. Despite listings that may indicate LOCAL PICK UP ONLY - this is just to facilitate posting of gear. Logistics is our specialty, we can facilitate packaging and shipping to and from anywhere in the country. If you are interested in our gear, please reach out and we can figure out a shipping solution that will work. Our shop is in South San Francisco - stop by and put your eyes and ears to work!

This Krell KAV 3250 Stereo Power Amplifier is a highly sought-after audiophile item that is known for its exceptional sound quality and power output. It features six inputs, including stereo L/R RCA and XLR audio inputs, and three outputs, including raw cable and banana speaker jacks. The power output of this amplifier is 500W, making it a great choice for powering high-end speakers. This amplifier is in excellent working order and has been tested to ensure it is functioning properly. It has a sleek silver design and is a great addition to any home audio setup. With its high-quality sound and versatile inputs and outputs, the Krell KAV 3250 is an excellent choice for serious audiophiles and music enthusiasts. Krell KAV 3250 Stereo Power Amp We install audio and electronic equipment. This unit is in great working condition and came from one of the recent businesses we updated. Please contact me anytime with questions!

Krell KAV-2250/3250 amplifier packing materials (used). This is the heavy-duty version applicable to the KAV-2250 (2 channel - 70 lb.) and the KAV-3250 (3 channel - 80 lb.) multi-channel amplifiers. Good condition. Stored in a cool, dry place. Will be shipped wrapped in brown paper cover for added protection. FYI: My profile states that I do not accept returns,which is true. That said, if anything I sell has a problem or defect of somekind, I will always make it right for the buyer. Any doubts? Please check myfeedback.

A dear friend left me his high end audio equipment when he passed. He was a picky audiophile and only bought the best for his sound room. This unit is a lot more than I need and I would love for it to go to a good home. This is a Krell KAV 3250 in excellent condition. This is a 3 channel 250 watt amplifier for high end audio systems. In original box with power cord included. If you would like more photos please contact me. Features:- Powered by a massive 2kVA toroidal-transformer supply- 250 Watts per channel into 8 ohms (500 Watts per channel into 4 ohms)- Gain stages use Krell Current Mode discrete Class A fully complementary circuitry- Driver stages employ 14 high-current transistors per channel for high output current capability Please note: This is a very heavy unit. It weighs 70 pounds so two people may want to lift it. In excellent condition and well taken care of. Please see photos.