This is a PCB set of kx-amplifier designed by Andrew C Russell of hifisonix.com. Mr. Russell's other amplifier project includes Ovation sx and nx amplifiers have been very popular in the diy circle.
According to the designer's description, kx Amplifier is a "souped-up" version of sx without compromising on speed -- slew rate performance, with improvement on distortion performance and gain.
The full documentation can be found in Andrew's hifisonix website.
We are authorized by the designer to manufacture and sell his boards.
Each set consists of two amplifier PCBs and one PSU/protection PCB. Each amplifier PCB serves one audio channel, and each PSU board serves two audio channels so in total there are three boards in this listing for stereo or two channel application.
Boards dimension :
Amplifier board ( just the rectangular dimension quoted) : 107mm x 72mm
PSU board : 79mm x 80.5mm
PCB thickness : 1.6mm
Copper thickness : 75um( 4 times standard thickness)
Surface finishing : Gold-plated with solder resist coated on both side for best reliability.
The construction guide ( in pdf format) can be downloaded from hifisonix website.
We do air shipping worldwide at US$6.50.
