Differences in Ohms?

[Klamath 10+ year member]

The sub I'm looking at comes in 2- and 4- ohm versions. My amp can handle 2 ohms.

Is the idea to get the lowest ohm sub that your amp can handle? Is there any downside to getting the lower ohm one? SQ the same?

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[T9X 10+ year member]

There is no SQ difference between running 2ohm or 4 ohm. You can generally get your amp to produce more power when it is wired to a lower ohm load. If you're planning on running 1 woofer, go with the dual 4ohm and wire it to 2. If you're running 2 woofers, get the dual 2ohm.

 

[bug splat 10+ year member]

It all depends. Are you going to run one sub or more than one off the amp? Are they dual voice coil subs or single? Yes the idea is to get the most out of your amp by matching your subs to the lowest ohms your amp is rated at. There are many factors that go into selecting the right subs for your amp. More info about your amp and the sub/s your are looking at would be helpful.

 

[mile098 10+ year member]

of course there is a difference....in 4 ohms u get less power but more control over your sub...4 everyday listening i wouldnt go below 2 ohms...and besides the resistance of the box has to be taken into account so its never really just 4 or 2.....

if ure into SQ dont go below 2...your damping factor(control) is half the rated value then

 

[Klamath 10+ year member]

Right now I'm planning to just run one sub; I might get another one eventually. I'm more concerned with SQ than SPL.

My amp: Rockford Fosgate Punch P325.1 http://www.cardomain.com/item/ROC06P3251

Subs I'm looking at, but I'm far from definite:

Image Dynamics IDQ10 D4 v.2 http://www.cardomain.com/item/IDSIDQ10D4V2

Image Dynamics IDQ10 D2 v.2 http://www.cardomain.com/item/IDSIDQ10D2V2

 

[bug splat 10+ year member]

OOOOOOO..... I like your amp