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Re: 2ohm Bridge MonoYou would probably only need two total if you powered them properly. One side of a Crown iTech 6000 (3000w @ 4ohms) is about a perfect match for the 728's. That being said, your amps will not last long running 2 ohm bridge, if you got a couple of minutes runtime out of it on subs before it overheats I'd be surprised. Run one box per channel so every thing is at 4 ohms and keep the amps out of clip.
Re: 2ohm Bridge Mono
You would probably only need two total if you powered them properly. One side of a Crown iTech 6000 (3000w @ 4ohms) is about a perfect match for the 728's. That being said, your amps will not last long running 2 ohm bridge, if you got a couple of minutes runtime out of it on subs before it overheats I'd be surprised. Run one box per channel so every thing is at 4 ohms and keep the amps out of clip.
