Hiya all on this very sad night~~ About speaker loads & trannies: Is there ANY difference in sound if I use a particular 16 ohm speaker using the 16 ohm tap, as opposed to me using the exact speaker, except in 8 ohms, going through the 8 ohm tap? I think I know what the consensus is, but is it true that using more tranny iron benefits the overall sound?
Thanks
Thanks
You wouldn't be using more iron, you'd be using more copper.
This assumes the 8 and 16 ohm versions of some model of speaker are truly identical.
Just my opinion, but if that were true, in a guitar amp, I would not expect substantive differences.
This assumes the 8 and 16 ohm versions of some model of speaker are truly identical.
Just my opinion, but if that were true, in a guitar amp, I would not expect substantive differences.
In this context, smaller turns ratio = higher secondary impedance. The smaller turns ratio will tend to have better coupling from primary to secondary. This makes the transformer closer to ideal electrically, but this may or may not help the overall “sound” in the application. The only thing certain is that it would be a better “power” transformer.
Small turns, less inductance. Less low frequencies? I was always taught a 16 ohm version of a speaker has a little more mass due to larger voice coil turns. I doubt any manufacturer has identical specs for both a 8 ohm and 16 ohm of the same model.
16 ohm speaker has a larger number of turns, of smaller gauge wire. Effective motor strength ends up similar (but as you’ve seen, not always exact). For a transformer, the coupling factor is highest then pri:sec = 1:1, all other things being equal. The coupling between the two halves of a P-P primary is pretty damn tight for that reason. But things are never equal - different wire gauge And interleaving methods will affect coupling as well. In the usual multi-tap OPT, you only utilize *all* of the turns on the 16 ohm winding. Connect to a lower tap, and some turns are unused, reducing its theoretical effectiveness.