Hey I got an amp that says its minimum impedance bridged is 4 ohms, and will produce 1000w at 4 ohms bridged. Ive been running 2 dual 4 ohm subs to make the 4 ohms bridged mode, but due to power limitations I want to take out one of the subs so I can get more power to push a single sub. Since the amp does 1000w bridged at 4 ohms, would it be safe to assume that if I wired a single sub to run at 8 ohms, it would produce 500w rms bridged?

Edit: by power limitations I mean I'm running my stock 80 amp alternator, no spare battery and no big 3. so my subs have to split somewhere around 400 watts, id rather just push one at 400 watts than 2 at 200.

Edited January 30, 201015 yr by Third Eye Vision

Give or take some, usually it halves when you go up in impedence (but then again that depends if amp is even putting out rated power).