Re: Small questions that don't fit anywhere

672
This brings up a question I've always wondered: does anyone know what part of the manufacturing process determines the resistance of the speaker? As in how does a MFG have two speakers of the same model but one is 16 ohms and the other is 8?

Before I get LMGTFY, search results only showing how to test for it w/ a multi-meter which I am already well-familiar with not sure how to re-word my terms to not bother y'all.

Re: Small questions that don't fit anywhere

674
Nate Dort wrote: Fri Feb 11, 2022 8:14 am The coil wire diameter and the number of turns sets the power handling capability and impedance. So more turns will bring you from 8 to 16 ohms. Thicker diameter wire allows more power. It's all a balancing act though, because you only have so much room to work with without impacting the mass of the cone.
Cool, that's what I thought since those are the same attributes that affect impedance of pickups.

Y'know, I'm surprised tonemojos haven't started in on claims that "oh the 16 ohm hempslags sound so much better than the 8 ohms cuz more copper bro." Then again they could be saying that and I just avoid that kinda of dipshittery...or I could be wrong and there are measurable, discernible differences between two speakers of the same make w/ different ohm ratings and I'm the asshole here...

Re: Small questions that don't fit anywhere

675
There are definitely measurable differences between impedance variants within the same speaker family. As I mentioned, changing the wire gauge and the number of turns will impact the mass of the cone, which impacts a host of other measurable/audible parameters.

In the grand scheme of things, the impedance has much lower impact than any of the other knobs you could turn in a speaker design, i.e. cone material, suspension material, magnet gap, magnet material, basket construction, etc.

There are also the guys who insist on using 16 ohm speakers on their amps because it uses more turns of the output transformer, and therefore they get more transformer sound. I call BS on that one, because you can't hear the difference of a few extra feet of wire, even if it is wound around a magnetic core.

Re: Small questions that don't fit anywhere

677
Nate Dort wrote: Fri Feb 11, 2022 8:35 am There are also the guys who insist on using 16 ohm speakers on their amps because it uses more turns of the output transformer, and therefore they get more transformer sound. I call BS on that one, because you can't hear the difference of a few extra feet of wire, even if it is wound around a magnetic core.
It's definitely overblown. I can hear a slight difference (SLIGHT!) with my amps on 4 vs 16 ohms with a Marshall cab that has switchable impedance. I personally think that has more to do with the speaker wiring (all parallel vs series/parallel) rather than the transformer windings though.
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