Help finding Class D amp that puts out max power at 4 ohms

[stevemartins]

Hey guys. A friend of mine came to me for help with his system. He has a beefy looking Aura NS15 sub he wants to put it in a sealed box. I've been trying to help him find and amp for it but it's a 4 ohm sub and every class D amp I can find puts out max power at 2 ohms or lower. He wants to push the sub with 600+ watts. His budget is tight and only has $150-200 to spend, amp does not have to be new and brand is not important, just soemthing decent. Any help is appreciated. Thanks

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[Rich B 5,000+ posts]

Just look for a class D amp that does 1,000w or more @ 2ohms, and check its power into 4 ohms, it should be close.

At 4 ohms it will just run cooler and draw even less power, both a plus.

 

[audioholic 5,000+ posts]

Just look for a class D amp that does 1,000w or more @ 2ohms, and check its power into 4 ohms, it should be close.
At 4 ohms it will just run cooler and draw even less power, both a plus.

It will also have less THD, and handle transient music spikes better/cleaner.

 

[jtomsic 5,000+ posts]

hifonics amps pretty cheap, and most of the models that do 1000+watts at 1-2 ohm do around 600watts @ 4ohm.. check them out

 

[fasfocus00 5,000+ posts]

first off D class amps are meant to run lower impedance's to make more power while maintaining more efficiency than a class A/B. part of the reason why is b/c actual output, if 1000 watts is output target for both an A/B and a D class amp the D class will put it out a 2 or 1 ohm with less current draw due to having less resistance. an Ω is a measure of resistance, 4Ω is more resistance than 1Ω.

 

[Haunz 10+ year member]

first off D class amps are meant to run lower impedance's to make more power while maintaining more efficiency than a class A/B. part of the reason why is b/c actual output, if 1000 watts is output target for both an A/B and a D class amp the D class will put it out a 2 or 1 ohm with less current draw due to having less resistance.

say wat ???