View Full Version : Wiring @ 4 ohms

DirtyP

05-22-2007, 06:26 PM

In the wiring diagram it shows a 4ohm dvc wired up at 2 ohms but not at 4 ohms. How do you wire a 4 ohms dvc to 4 ohms?

I think mine is wired at 2ohms now, I always thought it was 4 because of the speaker, Im going to have to open the box and find out.

Prowler573

05-22-2007, 06:29 PM

In the wiring diagram it shows a 4ohm dvc wired up at 2 ohms but not at 4 ohms. How do you wire a 4 ohms dvc to 4 ohms?

With a single DVC 4 Ohm driver you can't. Your only options are wiring in parallel to a 2 Ohm nominal load or wiring in series to an 8 Ohm nominal load. If you want/need a 4 Ohm nominal load for whatever reason(s) then you'll need either a second DVC 4 Ohm sub or if you're wanting to remain with a single sub setup then you need to swap out that DVC 4 Ohm model for a DVC 2 Ohm model and then wire those two coils in series to give you a 4 Ohm load. :)

DirtyP

05-22-2007, 06:39 PM

I was just curious, Was a little confused.

Hell with it I get more power at 2 ohms.

Whats the major difference on the ohm load anyway?

Prowler573

05-22-2007, 07:00 PM

I was just curious, Was a little confused.

Hell with it I get more power at 2 ohms.

Whats the major difference on the ohm load anyway?

The major difference is something you yourself already stated.

Generally speaking (though there are notable exceptions) you will get more wattage output from your amp the lower the resistance that you present it. (assuming the amp in question is stable at the Ohm load you are wanting to show to it)

Almost all amps will make more power into a 2 Ohm load than they will into a 4 Ohm load. Note that I said almost as there are amps out there (certain JBL units, Phoenix Gold Xenon-series amps, the JL Slash-series amps for example) that make the same power into multiple resistance loads but these are the exception rather than the rule.

My monoblock can serve as a good "for instance" ~ Factory ratings (which are somewhat less than actual output but you'll get the idea) on the Diamond Audio D61500.1 are:

375w X 1 @ 4 Ohms

750w X 1 @ 2 Ohms

1,500w X 1 @ 1 Ohm.

Many, many other amps operate much in the same fashion. So - in general terms the lower the resistance shown to the amp the higher the wattage ouput will be. Just be certain that once you get below 2 Ohms that your amp will sustain that low of a load. Almost all amps will support a 2 Ohm load dependent on configuration. Once you get to a 1 Ohm load the list of amps that will offer stable operation gets much shorter and below a 1 Ohm load the list is even smaller.