Ohms and all that... a quick question.

[vikingraider1]

Really sorry to be asking this as I should know but I'm stumped. I've just got a Peavey 4x10 cab rated at 8ohms (350/700w as per the later 410tx and tvx models) and an old 2x10 SWR Goliath Junior rated at 200W/4ohms. I'm hooking it up to a Trace Elliot GP7 SM which has two outputs on the back, each stating "Speaker 8 Ohms".
Now I know the Peavey 4x10 will be OK as I've seen it running with this head, but if I hook the 2x10 will things go bang / burst into flames / my wife leave me etc?

I know, stupid question and I deserve to be flamed for it but I honestly don't know the answer.

Any help appreciated.

 

[freekdegreef]

Bad idea, the 4 ohm cab draws way more power than the Peavey cab and will probably blow out your output transformers when you turn it all the way up.

 

[countrybassist]

You won't hear the Peavey cab. To run that the right way you would want both cabs at 8 ohms.

 

[B-string]

If you have two 8ohm jacks why would you think you could plug a 4 ohm cab in? The lower the number (in ohms) the greater the load on the amp.
FLAME FLAME FLAME feel better

 

[julio.gamiz]

I have a suggestion, anybody else correct me if I'm wrong. Since your 2x10 is 4 ohm, I suppose it has two 8 ohm drivers in parallel. Rewire them to series and your cab will be 16 ohms.

 

[Rick Auricchio]

The combined load of the two cabs is 2.67 ohms. The amp can only go down to 4. You'll damage it or it will shut down to prevent damage.

 

[countrybassist]

The combined load of the two cabs is 2.67 ohms. The amp can only go down to 4. You'll damage it or it will shut down to prevent damage.

+1

 

[Jazzman]

I have a suggestion, anybody else correct me if I'm wrong. Since your 2x10 is 4 ohm, I suppose it has two 8 ohm drivers in parallel. Rewire them to series and your cab will be 16 ohms.

Very good suggestion!

 

[vikingraider1]

Bugger... looks like I might be looking for a new bass head, or a new 2x10 that runs at 8ohms. I presume that means having a cab loaded with two 4 Ohm speakers?

 

[Richard Lindsey]

Bugger... looks like I might be looking for a new bass head, or a new 2x10 that runs at 8ohms. I presume that means having a cab loaded with two 4 Ohm speakers?

Or two 16 ohm speakers.

 

[vikingraider1]

Thanks for that... now to look for a decent 4 or 16 Ohm set of speakers!.