Amp question

I'm running two 10" Infinity Reference 1030W's (1000W max) @ approx 250W RMS on a Bazooka EL1500 (500W RMS) mono amp. Since I have a factory stereo, the RCA's from the headunit are connected by a High-level->Low Level adapter. I noticed when I was installing some bass blockers that when I went to adjust individual speakers, (fade the truck any direction (F,B,L,R), I get some tooth-jarring bass.

I figure, since the subs are rated so much higher than the amp, I shouldn't be able to damage them. I was just wondering if this signal would damage the amp?

I can see this as being a good way to bridge the whole Rock/club problem when adjusting an amp. You want to keep it low when club is on because of the heavier beat and still be able to enjoy rock with its lower bass drum kick. I could just fade it to pick up a bunch of boom when listening to rock if it won't damage the amp and still have enough to not over-do the club.

Any ideas?

ok, a high level to low level adapter...? does that just change the connector type. Since it's a mono amp it prolly has a low pass crossover i wouldn't worry about it too much.

Yeah, you know, high level [Speaker outs] to low-level [RCA] outs. I don't have pre-outs on my car stereo so this was the method they [Circuit City] used. I'm assuming its no more of a "gain" effect. As long as there's no distortion or noise, it shouldn't be causing damage. But its just amazing how much more punch it has when you change the fader a single notch.