Thanks to all on this thread. Plenty to think about here. George it looks like I will have to look at car amps again, and Dave has the answer to inputs with a small mixer. This is looking good now. Now, small mixer?---- Tandy used to do a 4ch, but no longer supply the UK, What do you use dave? John J, Great idea I will look into-thanks (And to all)(looks like you where right all along open mike!)