Ok, the 32 isn't the impedance, then. Makes sense now. 4-ohm speakers wired in series/parallel and the cab is factory-new. This is all lining up much better now.
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Speaker recone or replace???!?!?!
- Thread starter iplaybasstexas
- Start date
> So, by the label, they are all 4 ohm speakers....
> which doesn't make sense!?
It's good. They probably wired #1 to #2 in series for an 8-ohm pair (Pair A), then wired #3 to #4 in series for a second 8-ohm pair (Pair B), then wired Pair A and Pair B in parallel for a cab impedance of 4 ohms. See it all the time.
> which doesn't make sense!?
It's good. They probably wired #1 to #2 in series for an 8-ohm pair (Pair A), then wired #3 to #4 in series for a second 8-ohm pair (Pair B), then wired Pair A and Pair B in parallel for a cab impedance of 4 ohms. See it all the time.
That would be another way of doing it, sure. A paralleled pair in series with another paralleled pair. Would be interesting to see whether there was a difference in sound. But I usually see a "series'd" pair in parallel with another "series'd" pair. See http://usspeaker.com/speaker wiring-1.htm
Best way to do it from an electrical perspective, though, is to spec all the drivers to support a pure-parallel connection, like the SVT cab with its eight 32-ohm drivers (at least in the cab I had 30+ years ago). That way you don't have "speaker #2's" resistance in series with "speaker #1." Because what that does is reduce the amp's effective damping by raising its effective output impedance.
But hell, we're talking paper theory here. Reality check for all of us including me: we're running 1/2-kilowatt amps & often more in a noisy room and the last time I heard someone accuse the bass player of failing to run pure-parallel speaker wiring, or parallel/series rather than series/parallel, was... never. Like everything else we worry about, it don't mean nothin' to the folks ringing the registers. ;-)
Best way to do it from an electrical perspective, though, is to spec all the drivers to support a pure-parallel connection, like the SVT cab with its eight 32-ohm drivers (at least in the cab I had 30+ years ago). That way you don't have "speaker #2's" resistance in series with "speaker #1." Because what that does is reduce the amp's effective damping by raising its effective output impedance.
But hell, we're talking paper theory here. Reality check for all of us including me: we're running 1/2-kilowatt amps & often more in a noisy room and the last time I heard someone accuse the bass player of failing to run pure-parallel speaker wiring, or parallel/series rather than series/parallel, was... never. Like everything else we worry about, it don't mean nothin' to the folks ringing the registers. ;-)
