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Multi-Way Conventional loudspeakers with crossovers

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Old 20th April 2014, 05:07 PM   #121
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Location: Birmingham, UK
I like my 12" Tannoy DC/Volt combination.

To paraphrase: There is no substitute for square inches! ;-)
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Old 20th April 2014, 08:48 PM   #122
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Originally Posted by system7 View Post
Amps just seem to do what they do without complaint.
Dream on.

community sites,, ........ commercial site planet10-HiFi
p10-hifi forum here at diyA
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Old 20th April 2014, 11:17 PM   #123
system7 is offline system7  United Kingdom
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Originally Posted by planet10 View Post
Dream on.

Joe Rasmussen made a very interesting observation that you should flatten the impedance plot as much as you can. He likes Zobels and LCR impedance equalisation.

Then it really doesn't matter what you drive a speaker with, voltage or current. I have taken this on board, and avoid extreme lumps and bumps in impedance these days. A nice bell curve if I can, being in the transistor camp. You could then add an LCR impedance equaliser easily enough for valve use.

You can usually fiddle about with a filter and attenuator for optimum damping and smoothest impedance. You are giving the amp an easy ride.
Best Regards from Steve in Portsmouth, UK.

Last edited by system7; 20th April 2014 at 11:23 PM.
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Old 20th April 2014, 11:30 PM   #124
fas42 is offline fas42  Australia
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Originally Posted by system7 View Post
I've been having much more fun with high efficiency designs than the regular inefficient HiFi boxes.
And the reason for this is that the latter force conventional amplifiers to work in their 'stress' region - easy to hear that the system is not working properly, so one simple solution is to apply really efficient speakers, and the amplifier then never has to get out of first gear ...
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