Here, get my distortion free Like. Your shop is interesting. All pictures only show the backsides of each amp. I thought the red box must be some sort of battery charger lol. Ok here's the market niche. Build an TPA3255 based integrated amp with double VU-meters and a massive front plate, XLR, two line ins, a phono pre amp nice to have, bluetooth aptx hd, tone controls including loudness and a big metal volume knob. Basically something like Yamaha's A-S3200 but with class d.
It is a great idea, but strong companies and brands already take a nice box and expensive unit market. No way to compete for me. Also for direct sales in the global market unit weight and size play a significant role due to continuously rising shipping costs. So I took nich with high-quality electronics in a simple lightweight aluminum box.
We need to define the Hi-Fi amplifier criteria. For near field monitors (1m listening) for Hi-Fi you need 100-150W power. For Floor standing at a distance 2-3mm you need 400W clean power. The simple answer is that TPA3255 can be treated as a Hi-FI amplifier for near-field monitors under one condition -good power supply quality. Most Chinese amplifiers come with PC industrial power supplies which can’t provide short-term instant power. 100W amplifier power supply should be able for the short term provide about 8 times RMS power - about 800W for about a second. The power supply should have a different architecture. Otherwise, TPA3255 is a very good amplifier especially used in stereo bridged mode (chip has 4 channels) it measures well and it sounds good, and proper builds are far better than 120W AB class amplifiers. There are several Audio science reviews rating it high. But as I said, power supply is an issue in most budget offerings. You can measure it well for constant power but dynamic characteristics are more important. Sound quality is all about the amplifier's capability to accelerate the speaker membrane at any rated power and the engine of the amplifier is power supply instant power.
