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Author Thread: 4ohm vs 2ohm
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New member
Username: Joey3000

Post Number: 1
Registered: Jan-06
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I am trying to make sure I purchase the correct sub.

I am looking at a 15inch sub. I am only going to have one sub running on a mono amp.

The sub comes either 2ohm or 4ohm. Which do I want, and why?

Thanks!
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Silver Member
Username: Theelfkeeper

Stockbridge, GA
USA

Post Number: 881
Registered: Feb-05
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well, is it a dual voice coil sub or a single voice coil sub.

also, what kind of amp are you gonna hook it to?? the amp will be your decision maker.
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Gold Member
Username: Tjmutlow

Post Number: 1171
Registered: Sep-05
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if the amp is 1 ohm stable then use the dual 2, if it 2ohm stable then use dual 4.
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New member
Username: Joey3000

Post Number: 2
Registered: Jan-06
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It is an Alpine type R dual coil. I don't know what amp to go with.
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Gold Member
Username: Tjmutlow

Post Number: 1184
Registered: Sep-05
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you need a 1ohm stable amp, Like the kicker 1200.1, orion1200d, memphis 1000d or something along those lines, go to www.ikesound.com and check them out even for a directed amp.
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Gold Member
Username: Tjmutlow

Post Number: 1185
Registered: Sep-05
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sorry or you can go with a 2 channel and run it stereo mode, something along a1220 watt amp[ or so.
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Silver Member
Username: Fandim

Reno, Nevada
United State...

Post Number: 609
Registered: Jun-05
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I'd avoid a 2 channel, and get a monoblock for a sub, as most stereo amps are class AB, and a lot of the mono amps out there (especially 1 ohm stable ones) are class D, and 80% efficient..so it wont put as much stress on your cars electrical system.
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New member
Username: Joey3000

Post Number: 3
Registered: Jan-06
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So I should look for a 1ohm stable amp, and go with the 2ohm sub. Any other suggestions for a good amp for this sub?
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