http://www.vanoustech.com/extension-cab/
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Guitar amp speaker ohm?
Alright. I have a guitar amp with 2 speaker out jacks. One is 8ohm, the other is 4ohm. I have one internal speaker that is 8ohm. I also have an empty extension speaker cabinet that i need to put only one speaker in...so should I be getting a 16ohm speaker to plug in the 8ohm jack and then plug the internal in the 4ohm?
or just geta 4ohm and plug 4to4 and 8to8?
I been reading things about matching and having more speakers in one cab decreases the ohm impedence such as two 8ohm speakers would be 4ohm if wired parallel, or 16 if wired series. BUT Im dealing with 2 speakers into 2 outputs.
any ideas?
and ive heard guys with full stacks that have 2 16ohm 4x12" speaker cabs run 8ohm when they use both cabs but 16 for one so Im woundering if Id do something sort of the same.
any help would rock
You don't want to use both the 8 and the 4 at the same time.
You want to use 1 or the other, don't worry about the internal speaker, that is what the 4 and 8 ohm jacks are for, it is saying that if you want to plug in a external speaker along with the internal I will take care of the impedance as long as you follow the rules, use an 8 ohm load in the 8 ohm side or a 4 ohm load on the 4 ohm side.
How you come up with the combination is up to you
Two 8 ohms in parallel is 4 ohms
Two 4 ohms in series is 8 ohms
Four 8 ohms in series parallel can be wired to 8 ohms
Blackstar HT408 Extension Cab demo with a HT1R head - Drew at Nevada Music UK
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