If you already have external amp thats four channels yeh, say yourself some money.
If your like me and put the SPL meter away when watching movies at 80db or listening to music at 90db. Your not going to notice the
" Noise" made between the transformers.
Likewise, if your lucky enough to have alot of disposable income, then grab the 1120 if that "Noise" is going to effect your listening pleasure.


Anthem MRX520
M5HPv4
VP160HPv4
QS10v4