Hi Lyndel

Undocumented commands....there are a ton of them.....some you can work out.....some have encoded values and are impossible to decipher!!!

Input channels:

SSINFAISFOR ?

Returns a string like:
 
SSINFAISFOR 321

First digit fronts,
Second rears 
Third is sub

Bug on my model returns 331 instead of 321 has been fixed on some other models

If you get 341 its a 7.1 input signal .......you need to code for all combos

Output channels 

SSSPC ?

returns this

SSSPC ?
SSSPCFRO SMA
SSSPCCEN SMA
SSSPCSUA SMA
SSSPCSUB NON
SSSPCSWF YES
SSSPCSBK NON
SSSPCSBK 2SP

and you need this for the subs

SSSWC ? returns a string like this:

SSSWC 1SP

Hope this helps

Cheers

Dominic