This amp is in good used condition with very little wear from age and use. It works great and is ready to power your audio setup. All tubes have been removed and safely packaged inside the amplifier. The amplifier has also been packaged safely inside its original shipping box so that it is ready to be shipped out safely to the next owner. Upon receiving the amplifier you just need to add the small rubber rings on the smaller tubes and then plug the tubes back into their respective receptacles, all of which are marked. This amp will be shipped out fully insured with signature confirmation. Free shipping to continental US only. Physical addresses only no PO or APO boxes. If wanting to ship it elsewhere please message me. Thank you!

This is the latest revision of this amplifier with active cooling, a balanced (XLR) / single-ended (RCA) switch, and a beefier power supply. In amazing condition with perfect front and some minor scratching around speaker terminals on back. The black finish is supposedly harder to find. Includes all manuals and factory boxes for the amp and tubes. *** This amp is available for audition in Lawrence, Kansas *** I performed a minor repair on this amp, replacing two burned up resistors and a small section of trace after a tube went bad and shorted. This is a common issue and I was able to source original parts directly from Audio Research. I am a certified electronic technician and computer engineer who does a lot of audio repair and restoration work, so this was a trivial repair for me. The tubes were tested on my calibrated B&K tube tester and are basically brand new. Bias was set on all 4 matched output tube pairs. The amplifier was then bench tested and listened to extensively. Local Pickup Local pickup and auditions are available in Lawrence, Kansas. Shipping:Amplifier will be shipped in factory box with tubes removed, labeled, and packed separately. Fully insured FedEx ground shipping will be used and additional fragile stickers will be added to outside box. Returns:I dont typically accept returns on heavy audio items like this. I will guarantee the amplifier arrives in the condition stated. I want to make sure you are 100% satisfied. Specifications: Maximum output power: 110Wpc continuous, 20Hz–20kHz at 1kHz with THD typically 0.3% at 110W, 0.03% at 1W; 120W at clipping (20.8dBW).Stereo tubed power amplifier with balanced inputs and 4, 8, and 16 ohm output transformer taps.Tube complement: 4 matched pairs of 6550C output tubes, 4 6H30 driver tubes.Frequency response: 0.6Hz–90kHz, –3dB.Input sensitivity: 1.8V RMS balanced for rated output (24dB balanced gain into 8 ohms).Input impedance: 300k ohms balanced.Output polarity: non-inverting.Damping factor: approximately 12.Hum & noise: 0.2mV RMS, 106dB below rated output (IHF weighted, input shorted).Power requirements: 105–125VAC, 60Hz (210–250VAC, 50Hz), 630W at rated output, 800W maximum, 410W at idle.Dimensions: 19 (483mm) W by 8.75 (222mm) H by 19.5 (495mm) D. Handles extend 1.5 (38mm) forward.Weight: 67.4 lbs (30.7kg) net, 83 lbs (37.8kg) shipping.

Up for sale from a recent trade in Audio Research VT100 MK III - The Excellent Working Conditions - Factory boxCosmetically, you can probably find some signs of wear here there from used, but overall it looks good condition. This unit has been tested working properly on all functions. Amplifier comes with power cord and shipped in Factory box. Buyer will pay actual insured shipping Costs and signature required on delivery. For quick supports can be reached, 9167.79.9889. **If you have any questions, please feel free to contact me**