Wiring MTX 7500

[Steven206Seattl 10+ year member]

I just got into subs and bought a single 4-ohm, MTX 7500 sub. Its peak power is 800 and RMS is 400 watts. How should I wire this and what amp should I use? I wanna get an MTX amp. If anyone can held it would be appreciated. I try to read all these forums and get more confused. And what is bridging? Is it using two channels for one sub?

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[azbass 5,000+ posts]

well its a single 4 ohm woofer. so you get a speaker wire. hook the positive side of the wire to the + on the woofer and negative side of the wire to the - on the woofer. and you would need an amp that has about 400 rms at 4 ohm.

 

[Steven206Seattl 10+ year member]

Thanks. So this is a simple subwoofer to set up. Thanks for the info.

 

[azbass 5,000+ posts]

yes. also you can find a mono amp that does about 400 rms at 4 ohm. or a 2 chan amp that you can bridge the channles (so it works as a mono amo) to run at 4 ohm.

 

[Steven206Seattl 10+ year member]

Yeah, I'm gonna get a 2 channel amp. How big of an altenator should I get for an extra 600 watts in my stereo system because i'm pretty sure my altenator is small cuz it's from 1978.

 

[Steven206Seattl 10+ year member]

I'm afraid of clipping. I don't want my subs to die out after a little while.

 

[ravendarat 10+ year member]

If you want to upgrade your alt, a MTX 2 channel amp that is 400 watts is only gonna have a MAX draw of 40 amps if you go by whats in the side of em. That means that you could get away with buying like a standard 100-105 amp gm altenator and fitting it to your car. Also do a search on here about upgrading the BIG 3 and do that as well

 

[azbass 5,000+ posts]

x2. im shure your alt will be fine with a 2 chan 600 watt amp. but what kinda ride do you have? im shure there is aftermarket alts for it., also if you read up on the gain setting sticky at teh top of the amp section, you will be fine and wont clip your woofers.

 

[Steven206Seattl 10+ year member]

it's a 1978 el camino. I'm gonna do some research on alternators. Maybe I should check the one I have now though. I'll let you know what I find. Thanks for the help.