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In Reply to: RE: How to raise the total resistance of a speaker posted by saki70 on November 27, 2014 at 08:59:01
The reason why there aren't many high impedance speakers, is that when you use a solid state amplifier (as most people do), the amplifier will deliver less power into a higher impedance speaker. A higher impedance speaker won't make the most of a solid state amplifier, and as a result won't sound as good by comparison as a speaker with a lower impedance.
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Maxhifi wrote: "The reason why there aren't many high impedance speakers, is that when you use a solid state amplifier (as most people do), the amplifier will deliver less power into a higher impedance speaker. A higher impedance speaker won't make the most of a solid state amplifier, and as a result won't sound as good by comparison as a speaker with a lower impedance."
Like so many things in both life and audio your statement is true except for when it is not. As an example my Pass built First Watt F-3 solid state amplifiers are rated for a output of 15 watts into eight ohms but only 10 watts into either four or sixteen ohms.
What an awesome anplifier to own, yes of course I was making a generalization, I am not sure what mechanism limits current in the Pass amp but it doesn't matter, that is clearly a very specialized (and interesting) design. I have always wanted to hear a Pass amplifier, I really think his design philosophy is cool.
" A higher impedance speaker won't make the most of a solid state amplifier, and as a result won't sound as good by comparison as a speaker with a lower impedance."Louder yes; better sound, maybe not.
As long as the amplifier isn't pushed into clipping, it's not necessarily going to sound any better into a low impedance load. In fact, many solid state amplifiers exhibit more benign distortion behavior into a high impedance load.
I make a speaker system that can be user-configured as either a 4-ohm load or a 16-ohm load. Its efficiency is high enough that it can be used either way with most amps. So far, everyone who's tried it both ways prefers the 16 ohm configuration even with solid state amps.
Duke
Me being a dealer makes you leery?? It gets worse... I'm a manufacturer too.
Edits: 11/27/14
"I make a speaker system that can be user-configured as either a 4-ohm load or a 16-ohm load."
I like that. It makes a speaker flexible.
Big speakers and little amps blew my mind!
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