Qinpu A3 Integrated Amplifier

I was in the market for quality headphones and an amp to go with it. After listening to a friends amp setup I was impressed enough to get this hybrid amp. No regrets, coupled with Senneheiser HD 600 and a logitech squeezebox, music was night and day...

This is an attractive and good sounding little amp for the price, but be forewarned it is not a tube amp. The amplifier stages themselves are bipolar monolithic integrated circuits like those found in just about every inexpensive amplifier and boombox....

Hooked this up to a pair of Mirage OM 10 speakers with AudioQuest Type 4 cable. CD Player is a Cambridge Audio D300 SE. Replaced the stock tubes out of the box with JAN GE NOS 5670 model. Later after a burn in period of about 20 hours of operation, I...

There are some audio devices that introduce a measure of improvement so substantial, that one's entire music collection (which, in my case, amounts to several thousand CDs) is effectively "rejuvenated", in one fell swoop. This has been my experience...

I have this amp amplifying from my Oppo BDP-95, powering my HifiMan HE-500s via cables terminating to the back of the amp's speaker terminals AND NOT via the headphone cable containing the 1/4" jack. The 500s are planar headphones that require A LOT of...

Product arrived packed beautifully in a double box. I agree with all the reviews, it sounds awesome, haven't noticed any distortion. I bought this to use with my vinyl/turntables but haven't even hooked them up yet, so I've only listened via the...

This little gem sounds amazing. It produces realistic, rich, vibrant, unboxed sound -- for under $200! Vocals sound especially real. It's unique design makes it fun to look at too. Congratulations and thanks to the inventors for making true audiophile...

Sound So, this is my first legitimate tube amp and color me impressed. I have been using it with a pair of Sennheiser HD595 headphones, a pair of Stax Lambda Pro earspeakers, and a pair of Polk Audio R300 speakers. So far, it has driven them all well....

I'll keep it straight to the point in this review:

I'll keep it straight to the point in this review: First the sound: After I put in some American made GE 5670 tubes and ran it for at least 25 hours, the sound from this unit and through my Grado SR80i's was incredible(and keeps getting better}. Music...