Pioneer GM5300T-760amp w/bridgeable
It sounded like you checked, but I had to ask.
Lets see if the Bazooka is the problem:
If you have two other speakers around somewhere, you could try hooking them up (one to a channel, un-bridged). Start with the gain at it's lowest and slowly increase it.
If they work, good news. If not, we've isolated the problem to the Amp.
Your Bazooka: Is it a double or single speaker?
Some tubular models don't allow easy access to the back of the speaker to find out the impedance rating.
Speakers rated at 4 Ohms or less wired parallel on bridged connection will trigger the Amps self protection mode.
This test should tell you if it's too low.
Try your bazooka on a single channel (instead of the bridge).
Start with the gain at it's lowest and slowly increase it.
Try these and get back to me.