“ 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 would suggest replacing the stock tubes with something a bit better though. So far, I have been using NOS GE tubes and they work great (they...” --linuxid10t
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...