Qinpu A-6000 MKII stereo amplifier with headphone output. Lightly and lovingly used over the past 10 years to power a set of Bowers and Wilkins LM1 speakers and AS-1 subwoofer. The headphone output is live with the speakers and I had it driving my subwoofer. This amplifier is magical. Do your homework and read the reviews for yourself. Outperforms amplifiers that are 3 times the price. Unbelievable performance from 6N3 tubes in preamp and toroidal transformer output. Foot print is 10” deep, 7” wide, and 5” tall. See pictures for excellent condition. I will include a spare pair (2) of GE tubes as shown in the photos. They have a slightly different sound than the 6N3 tubes.

Qinpu A-6000 Audio Tube Amplifier MKII Tested Works. Condition is Used. Shipped with USPS Ground Advantage.

Unit works perfectly. Has some cosmetic damage around tubes (see pics) Compact integrated amplifierOutput Power: 2 x 16.5 WRMS (8 ohms)Tubes: 6N3 x 2Inputs: one RCA, two mini-plugsOutputs: mini-plug variable line-out/headphone jack, speaker posts Small, sleek, and sonically spectacular. Those are the hallmarks of the Qinpu A-6000 MKII vacuum tube integrated amplifier. The Qinpu delivers a smooth, luxurious, and detailed 16.5 watts-per-channel at 8 ohms, enough to fill your room with beautiful music and to easily drive a wide range of loudspeakers. The A-6000 MKII also excels as an audiophile headphone amp. A pair of 6N3 vacuum tubes in the output stage are responsible for the A-6000 MKII’s highly musical performance, along with an oversized toroidal transformer. The Qinpu has one RCA input, two mini-plug inputs, a mini-plug variable line-out/headphone jack, and quality speaker binding posts.

Very nice amp,amazing reproduction audio quality

Very nice amp,amazing reproduction audio quality

Very nice amp,amazing reproduction audio quality

Very nice amp,amazing reproduction audio quality

Very nice amp,amazing reproduction audio quality

Very nice amp,amazing reproduction audio quality

Qinpu A-6000 tube amplifier out of box in used condition. Significant cosmetic wear is present. The knob for switching between inputs is slightly faulty and sometimes causes signal cutouts but the unit is otherwise fully functional. Original packaging/accessories are not included.

Very nice amp,amazing reproduction audio quality

Very nice amp,amazing reproduction audio quality

Very nice amp,amazing reproduction audio quality

Very nice amp,amazing reproduction audio quality

Very nice amp,amazing reproduction audio quality

Very nice amp,amazing reproduction audio quality

Very nice amp,amazing reproduction audio quality

Very nice amp,amazing reproduction audio quality

This is a re-listing of an item that has already sold. A refund was issued because the package appeared to be lost in the mail but shortly after the refund was issued the buyer received the package. This listing exists so that the seller can be paid. I am not %100 sure whether the amplifier works. The blue lights on it blinks when powered on and the amp does not produce sound for my speakers. I used this amplifier frequently for about ten years and in that time I never replaced the tube bulbs. So I strongly suspect that they are issue and that beyond that the amplifier works fine. After years of absolutely loving this amp I decided it was finally time to move onto something new when it stopped working. If you would like to purchase the amp and install some new tubes to see if it works here’s an opportunity to acquire a great tube amp for a decent price. Perhaps you are also interested in it for parts. Let me know if you have any questions. Thanks!