#1
I'm building a custom 2x12 cab for a Fender Pro Jr. (15 watts into 8 ohms). Here's the question...is it better to do 2 x 4 ohms in series or 2 x 16 ohms in parallel...or does it not matter?

Thanks for your advise!
#2
not sure it matters, really, at least for tone etc. (difference likely somewhere between really subtle and nonexistent)

some people would say parallel might be safer because if one speaker fails the amp is still seeing a load. for that reason (and in the absence of anyone else giving you other good reasons that i might not be aware of ) parallel might be better.
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#3
Ive heard its better to go parallel so that they both get equal power from the amp. If you go series one speaker will have to carry the power through it to the next speaker. I think its fine to go series as long as the first speaker can handle the power of both speakers. Im not exactly sure what goes on in there though. Ive wired probably 3 or 4 other four-speaker systems in series+parallel with no trouble at all.
Last edited by geo-rage at Jan 12, 2017,
#4
Series does not cause one speaker to "carry power" through to the next one. That's not how resistance or impedance work. If the first speaker were required to handle the entire output power of the amp, what would be the point or role of a second speaker?

In series wirings of two speakers with the same impedance, each speaker sees half of the power from the amp output, just the same as in a parallel wiring.
#5
^ yeah.
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Quote by K33nbl4d3
I'll have to put the Classic T models on my to-try list. Shame the finish options there are Anachronism Gold, Nuclear Waste and Aged Clown, because in principle the plaintop is right up my alley.

Quote by K33nbl4d3
Presumably because the CCF (Combined Corksniffing Forces) of MLP and Gibson forums would rise up against them, plunging the land into war.

Quote by T00DEEPBLUE
Et tu, br00tz?
#6
Quote by Bootleg Gatsby
I'm building a custom 2x12 cab for a Fender Pro Jr. (15 watts into 8 ohms). Here's the question...is it better to do 2 x 4 ohms in series or 2 x 16 ohms in parallel...or does it not matter?



It doesn't matter, I suppose, but I'd suggest the 2x16 ohms in parallel. You'll get 8 ohms in either case, but should one speaker drop out, a 4 ohm impedance could potentially damage your head where a 16 ohm impedance wouldn't.
#7
If it's in series and one of the speakers blows you'll get an open circuit, not four ohms. Dave mentioned that in the first reply.
The idea is correct though, parallel gives you a bit of safety net that series does not.