I'm currently using the following set up for low volume practice:
Behringer BX3000T (300W RMS into 4Ohm impedence) into an Ashdown 2*10" cabinet (150W power handling, 8 Ohm impedence).
I understand that as 8 Ohm impedence is greater than 4 Ohm impedence, the cabinet will not receive the full 300W RMS power which it would, were it a 4 Ohm cabinet. Assuming, for arguments sake, that the amp delivers 150W RMS power into 8 Ohm impedence, then my cabinet should be safe at low/moderate volume. I would assume that at high output levels, the cabinet would be susceptible to damage caused by power above the RMS value.
The problem I am encountering is that when I play at low levels i.e. at conversation volume, the signal is significantly distorted. I am concerned that despite the cabinet's higher impedance it may have been damaged because of it's low power handling rating. It is quite possible that I have overlooked an important point in the sticky's in this forum or am being stupid, but any advice would be appreciated.
Cheers,
Ian.