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The amp I am getting built has a switchable impedence switch, either 4/8 ohms or 8/16 ohms...My cab is 8 ohms....

Which would make more sense?


Originally Posted by fuzzyratfartsThe amp I am getting built has a switchable impedence switch, either 4/8 ohms or 8/16 ohms...My cab is 8 ohms....

Which would make more scense?

I'm think'in 4/8. This way you could run another 8 ohm load.

Agreed. Assuming that the speaker in the amp itself is an 8 ohm load, you could also run an 8 ohm cabinet and switch the amp to 4 ohms to accommodate both of them.

The cab has two 16 ohm speakers, wired to be an 8 ohm cab.

Since you have the option of 4, 8 and 16, I think you should ask him to do all three. In my Edana, you have one hole in the back that the old style selector goes. Next to that are two speaker outputs. Total of three holes. It sounds like your amp guy is going to use the same number or less (2 holes?). I'd lobby hard to do all three. Mojo sells a heavy duty old style impedance selector switch that is very nice. I think they're less than $10 bucks.

Other than that, I'd take 4/8 over 8/16, but that's just me. There's a crowd out there that say to always use the maximum number of windings, maximum impedance if and whenever possible 16 in your case. I don't think it matters as much as a lot of other way more important factors inside the amp.


Originally Posted by Scott_F

There's a crowd out there that say to always use the maximum number of windings, maximum impedance if and whenever possible 16 in your case. I don't think it matters as much as a lot of other way more important factors inside the amp.

I'd figure you would want the amp to expect the 'lowest' impedance it's going to see.