I'm wondering if my amp is strong enough

coolmemin

Hello, I've finished setting up my system, I wasn't looking for crazy loudness just good clean sound. It is important for it to have a bit of power since my car is very loud. Anyways, I chose to run a single amplifier system with a single 4 channel amplifier. Two channels for two front speakers and the other two channels bridge them into a single sub. The speakers I have in the front are polk momo's mmc690, which are rated at 100 watts rms. Ok, now for my amplifier I have a hifonics zeus 6400 which is rated at 170 wattsX2 rms at 2 ohms or 80 watts X2rms at 4 ohms or 340 watts X2 rms at 4 ohms when bridged. Ok, so, my subwoofer is rated at around 300 watts rms so this is perfect, but I'm not sure about the front speakers. I feel like maybe I might be underpowering them. How do I know if the amp is "seeing" 4 or 2 ohms from the front speakers? I set up the rear to give the amp 4 ohms by using the double voice coils in parallel but I'm not sure about the front speakers. In the manual for the polk momo's it says that the nominal impedance is 4 ohms. Does that mean that when I plug them in the amplifier sees 4 ohms through those speakers and is only sending 80 watts of power to them as opposed to 170 watts? Is there some way I can connect them so that I can send 2 ohms to the amp through these speakers? or, if it is underpowered, is my only solution to get a separate amp for my sub??? I appreciate any advice, thanks, in advance

Guillermo

Frank Z

Try posting in the car audio forum. You'll get more help over there.