2 or 4 ohm?

[Justinschmidt1 10+ year member]

ok so i have a profile ap1000 amp...its 460 watts bridged at 4 ohms...im getting 1 mb quart 15 inch sub..which is like 700 rms...I need the 4 ohm right?..and will this be enough power for the sub?

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[ultimate157 5,000+ posts]

If it is a single voice coil: 4 ohm

If it is a dual voice coil: 2 ohm.

 

[Justinschmidt1 10+ year member]

its dvc.. so 2 ohm

 

[NoLimit 10+ year member]

you need a bigger amp

 

[Justinschmidt1 10+ year member]

you need a bigger amp

Why is that..Ill have 460 to a 700rms...which is like what 65%...Do I really need a bigger amp.

 

[canadapettit 10+ year member]

You will need to make sure that that amp can run at 2 ohm mono, if it can't then you will need a different amp.

 

[ultimate157 5,000+ posts]

Why is that..Ill have 460 to a 700rms...which is like what 65%...Do I really need a bigger amp.

Just put the sub in a ported box when you get it, tune a little lower and you'll be golden.

You will need to make sure that that amp can run at 2 ohm mono, if it can't then you will need a different amp.

No. He hasn't bought the sub yet so if he gets a single DVC 2 ohm sub he wires them in series and gets 4 ohms.

 

[n2audio 5,000+ posts]

Why is that..Ill have 460 to a 700rms...which is like what 65%...Do I really need a bigger amp.

it's less than ideal, but ~400w should be plenty to get most any sub sounding pretty well. If it doesn't it's more likely to be a sub or enclosure problem than a not enough power problem.