Yuan-Jing TPA3116 Class D Amplifier Board 50W+50W – £70

The best off the shelf TPA3116 amplifier.

Genuine Texas Instruments chipset

Built into a compact box.

Will supply with 19V DC power supply. (Needs 12-24V DC)

Surprisingly good sound. E.g. outperforms Temple Audio Bantam Gold – i.e. more open sound and better tonality than TABG.