Hi

I would like to ask what is the difference between one 770 and two 7100 bridged?

The price of 7100 is exactly half of 770.

The idea is to get a 7100 and if this is not enough powerfull (my speakers are NTH 2.5i with 86DB SPL) then I could bridge another 7100.

Would I loose some quality of sound?

------------------