If I wire a DVC sub at 4 ohms, output on amp is 2 ohms?

[supoaneko]

I have a IDQD4v4 and it is wired like so:

Does this mean the amp is putting out it's 2 ohm load and the sub if only receiving half that or the amp is putting out its 4 ohm load and the is getting all of that or...?

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[macsdad 10+ year member]

A 2ohm load usually ups the power of the amp, I have a ia 20.1 amp, 600wrms 4ohms, 1200wrms 2ohms, and 2400wrms 1ohm, see the progression? Which amp do you have?

 

[nismos14 5,000+ posts]

When you wire up your 4 ohm DVC sub, you can either have 2 ohms resistance in parallel, or 8 ohms resistance in series if it's one sub. So it is not wired to 4 ohms. It's not possible. If you have it wired the way the picture shows, it's wired to 2 ohms.

 

[supoaneko]

I have a Rockford Fosgate R500x1d.

Says it's 500w at 2 ohms, 300w at 4.

Does this mean the sub is "receiving" 500 watts?

My guess is that this amp is too small for this sub. To have headroom, I should get something that is 1000w RMS at 2 ohms, yeah?

 

[06gtmike 10+ year member]

I have a Rockford Fosgate R500x1d.
Says it's 500w at 2 ohms, 300w at 4.

Does this mean the sub is "receiving" 500 watts?

My guess is that this amp is too small for this sub. To have headroom, I should get something that is 1000w RMS at 2 ohms, yeah?

Yes. Slightly and sure, doesn't hurt to have a little headroom

 

[supoaneko]

Awesome. Been wondering this for some time. Appreciate it, 06gtmike.