Thanks 3FG

Sorry for not responding sooner, but this amp requires it's own dedicated 20 amp power supply & having a house with a flat roof is a major job getting wiring from the fuse box to the lounge room.
So I have finally been able to fire this beast up & try it out.

The following code worked.

POWER
0000 0074 0000 000b 001e 0021 001e 0021 001e 0021 003d 0023 001e 0023 001e 0023 001e 0042 003d 0042 003d 0023 001e 0023 001e 0caf

The MUTE, VOL +, METER codes from your link did register by making the amp Standby light flicker but nothing happens.

It would be great if there was discrete ON/OFF but the amp maybe a TOAD.

Cheers
Grant