Review on AIYIMA A07 TPA3255 Power Amplifier: 300Wx2 HiFi Class D Stereo Digital Audio Amp for Passive Speaker Home Audio (A07+DC 32V Power Adapter) by Priscilla Roque

Flaws It is well known among Audiophilia fans that Aiyima did a fantastic job integrating Texas Instruments' TPA3255 into their A07 amplifier. As the big brother of the A04, to which the TPA3251 belongs, the additional functions are no longer required, which not only lowers costs but also reduces unnecessary and unwanted internal electrosmog. For example, Bluetooth, which is NOT offered on this model or the A04, has been known to degrade sound quality even when not actively used. Don't take my word for it. Check out the A07's performance in Audio Science Review. Then you'll see why Aiyima is probably one of, if not the most popular TPA325X amp brand and by far the most affordable power amp in the D-chip revolution right now. Note that you can increase performance by using a 48V power supply, especially ones over 5A. Either do a little research, see what's involved and choose one, or just buy one now and then you will see what good choice you made when you explore later!