SWR Working Pro Question.

Alter-Ego · 12-07-2006 2:07am #1

Hey.

So i've been looking into getting an swr working pro 400 bass rig, the only problem i have is that the working pro head has an impedence of 4ohm and the cabs have an impedence of 8ohm.

How would this work out? I was thinking of getting the 1x15@200watt and the 2x10@200watt

I know very little about impedence levels so some advice would be appreciated.

Thanks.

Doctor J · 12-07-2006 11:00am

There's a cool impedance explanation in the Instrument Resources sticky. The basic rule is the cabs have to have an equal or higher impedance than the head. Your setup is perfect tbh. You should have two outputs on the back of the head, by running each cab parallell the impedance is halved so your cabs combined have a total impedance of 4 ohms, ideal for your head. If you were to daisy-chain them, ie have one cab connected to another cab connected to the head, the impedance would be doubled (16ohms) and while it wouldn't damage your head, it would reduce the output to of the amp.

Two 8 ohm cabs and a 4 ohm head is the classic bass rig tbh

Alter-Ego · 12-07-2006 9:12pm

Cool, I getcha, thanks for the info Doctor J.

david · 13-07-2006 5:20pm

Wire em parallel to eachother to give 4ohm total load.

Doctor J · 13-07-2006 5:25pm

Is that not what I said?

david · 13-07-2006 7:06pm

Yes, my reply was for those of short attention spans (ie me, i didnt even read your post, apart from the last line

)

SWR Working Pro Question.

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