note the Hx100mk2 is a discrete amplifier. As such,
it is not recommended for beginners.
Mk2 is one channel and is supplied Unassembled.
Two kits are required for stereo.
complete the amplifier, the following are needed:
1) a power supply - consisting of a power transformer,
filter capacitors and a bridge rectifier
2) a heatsink for the power mosfets
3) a metal case and the necessary connectors