Would THIS be a suitable OpAmp, there seems to be a couple of different types.
Thanks.

http://markgrantcables.co.uk/shop/in...roducts_id=111 (an "NA" Type - is this suitable?)

And is it just a case of popping the two existing amps out and popping the LM4562's in their place?
IS it just these two amps to be replaced on the output board (I think) or is there more to it?

http://img522.imageshack.us/my.php?image=opamps.jpg