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1ohm or 2ohm??

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Topic review
   

Expand view Topic review: 1ohm or 2ohm??

by smoker » Thu May 12, 2005 5:59 pm

one determining factor is which has a better damping factor at the given load. i know there has been some controversy over the years about how effictive a rating damping factor is but im kinda old school and i like it. for example jl's mono block amps put out the same power into 4,2, or 1.5 ohms but the damping factor decreases as the load drops.....

by BiGD33nS » Thu May 12, 2005 5:35 pm

Considering both amps are Class-D, Sorry I forgot to tell ya.

by Fishy » Thu May 12, 2005 5:34 pm

Impossible to say w/o specifying the amps. A/B is generally less efficient than class D designs so would draw more current, but many people claim A/B sound better. Most monoblocks are class D anyways.

I really don't think there'd be much difference.

-Fishy

by BiGD33nS » Thu May 12, 2005 5:29 pm

Yeah I know that some are designed to in 1 ohm but that's the point. WQe are going somewhere! I just have difficulty to explain a bit. How they run compared to other amps that are designed to run in 2 ohms? will they draw more power or will they make more distortion to the sub? (again, a 2+2 ohm for the 1 ohm amp and 4+4ohm for the 2 ohm amp)

by Fishy » Thu May 12, 2005 5:07 pm

I'd think it would depend entirely on the amp then. Some are designed to run at 2 ohms, others at 1. My Xtant 1001dx runs cool as a cucumber at 1 ohm.

-Fishy

by BiGD33nS » Thu May 12, 2005 5:02 pm

Yeah well it's mostly in the Amplifier point of view. If running an ''able to run in 1 ohm'' amp like the hifonics bx605d compared to, for exemple, some good brand class D amp that pushes 600watts RMS in 2ohm. A 2+2 ohm for the hifonics or 4+4 ohm for the other amp.

I already heard from another forum that it will get hot faster but except that, is there another thing I am not aware of? Take for exemple a 2005 Alpine Type-R 12'.

by Fishy » Thu May 12, 2005 4:46 pm

I've seen a few dual 4 ohm subs that have significantly different TS parameters and slightly different enclosure recommendations than their dual 2 ohm counterparts so they may sound different in the same enclosure, but should be able to handle the same amount of power.

-Fishy

by Justin from Detroit1 » Thu May 12, 2005 4:09 pm

You won't notice a difference in SQ with a Class D amp, but with Class AB amps, a 4 ohm load generally will sound better then a 1 ohm load.

by audiobass10 » Thu May 12, 2005 3:43 pm

In term of SQ, you wouldn't really notice a difference at all. I believe this holds true for all amps. They don't produce better SQ IMO. There's no magic amp that's gunna give you sound quality. Build quality is a different thing though. Hifonics build quality may not be up to par with a "good" class D amp and this can cause reliability issues, depending on what brands you consider "good" that is.

by ridr4lif » Thu May 12, 2005 3:39 pm

There is no difference in buying a dual 2 ohm versus a dual 4 ohm voice coil config. The only difference is the final ohm load presented to the amp. Generally, yes running an amp at 1 ohm will make it run hotter, but just run a cooling fan.

TEDD

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