Introduction:

In August 2017, when I visited the Hong Kong International Recordings Fair, I was fortunate to hear a digital amplifier with a price of 78,000rmb. Since that ear, I changed the idea of not being able to listen to the class D amp and created the idea of making it.

After the recommendation and guidance of Ti Chinese engineers, the final selection of TPA3255 at zero- is that the most important factor is that the sound is good and the dynamic is very strong.

After nearly eight months of schooling at the zero-zone Hong Kong team, it was finally available in the market.

Input voltage: AC24V -AC31V (Recommned AC28V)

PCB Size: 152*102mm Height about 40mm

Input: Support Single-ended (RCA) or Balanced (XLR) input

(This board default is set for Single-ended (RCA) input. if you want change to balance input. need change two Resistor's direction. checking the bottom Illustrating).

The main features of this amp:

>>High power, up to 300W (4&8 ohm)>>High and low frequency extension, rich overtone>>Dynamically strong>>The low frequency is solid and powerful, and the image is good.>>Sweet in the middle and high frequency>>High resolution, but no lack of density, non-thin sound system>>No digital taste>>Perfect protection, no switch sound>>Non-public version design, specially optimized filter

In August 2017, when I visited the Hong Kong International Recordings Fair, I was fortunate to hear a digital amplifier with a price of 78,000rmb. Since that ear, I changed the idea of not being able to listen to the class D amp and created the idea of making it.

After the recommendation and guidance of Ti Chinese engineers, the final selection of TPA3255 at zero- is that the most important factor is that the sound is good and the dynamic is very strong.

After nearly eight months of schooling at the zero-zone Hong Kong team, it was finally available in the market.

 

NOTE: This is a finished plate that has been welded and tested OK.