High Efficiency Speaker Asylum

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RE: General speaker design characteristics for a 2A3 amp

Posted by Paul Eizik on April 15, 2017 at 16:50:39:
Saki

Please don't delete the post in question as I'm just too lazy to re-type it ; )
A SET amp by it's very nature has a low parts count, therefore changing a part will have a greater impact on the sound than say a solid state amp which may have hundreds of parts. It's hard to generalize unless someone here has tried your amp with the speakers you are interested in. BTW Alan and Lawrence were discussing Alan's Lowther Medallions which I had heard a number of times, as Alan set the record for hosting the most Chicago Horn Club meetings. Most of the times Alan was running Korneff 45 SET amps on the Lowthers which have even less power than a 2A3 amp. There was a Carver subwoofer used and there was never a shortage of power in my humble opinion. Some people object to the Lowthers having a "tizziness" at the top end, and I could hear this on some music, but at one point an inductor mod was introduced (which I forgot the name of) and I never heard the tizziness again. You may run into an issue like this with the BK20's as the Fostex woofer also has a "wizzer cone" like the Lowther (that is to say a secondary small cone near the dust cap to extend the highs). So comments about the Lowthers could be applicable to the BK20's.

Keep us posted on how the project is going and what speakers you decide on.

Paul