[Wayne A. Pflughaupt]

Blueeyedfrog wrote:

Well, I think my receiver is clipping because my BFD input LEDs are going into the red - when they are up there my sub starts to make poping noises (unless I turn my sub amp down) - so that means my receiver is clipping, right ?

Nope. It means your feeding too much signal from the receiver to the BFD. Reduce the sub output in the receiver (hopefully that’s an option) to where the LEDs only hit the yellow occasionally; that will give you some headroom. Naturally, this will mean your sub will have to be turned up (using its gain control).

Note that this isn’t probably going to fix the problem with your sub. You see, low frequency distortion has to get much higher before it’s audible than mid-to-upper frequency distortion. So even if the BFD is clipping, it probably wouldn’t be audible. Popping noises from the sub usually means the driver is bottoming out, or perhaps that the amp is clipping. Equalization places additional demands on the amp and driver, so going in you have enough reserve in headroom to handle it.

Regards,
Wayne