i know what amp you have. the orange and chrome style one correct, i had a z7000 amp, thing was over 2 feet long lol. These are actually class a/b amps. they sound great. I loved my z7000, 1500 rms 1 ohm and was unregulated so you could power it at 16vs. but since they were a/b they were such power hogs. i actually gained a half a decible when i put the a7 in from the z7000,my z7000 drew 130 amps up compared to my a7 at 80, so efficient at 1 ohm. thing dosent even get hot. yours has the capacitor direct input correct.