RE: Quad 57 and OTL - powolny - OTL Asylum

OTL Asylum

OTL, Output Transformerless Amplifier User Group.

RE: Quad 57 and OTL

In Reply to: Quad 57 and OTL posted by audiogatorjim on March 27, 2015 at 16:02:43:

I have ESL57's for well over 20 years now, and run them with AtmaSphere M60's for 8 years. Before I had a number of really good amplifiers, both solid state and tube, but nothing comes close to the ESL/OTL combination. Particularly now that I also use the AtmaSphere MP3 preamp, I never have any thoughts of changing equipment anymore.
One thing that you will need to take care off: If the QUADs are still original, you can be sure that they are not working as they can and should. They will probably still sound great, but you'll miss out on top performance. A real refurbishment is not just the well known replacement of EHT units and panels, but also a replacement of the resistors in the crossover circuit. This is not widely known but after many years, these resistors have gone out of spec by 10-15% which has a big effect on the sound.
I have no experience with Transcendent, but definitely can recommend the AtmaSphere amplifiers with ESL57's. It is a match made in heaven.

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Follow Ups Full Thread

Topic - Quad 57 and OTL - audiogatorjim 16:02:43 03/27/15 (15)

RE: Quad 57 and OTL - powolny 16:33:55 04/04/15 (0)

RE: Quad 57 and OTL - Dman 08:11:08 03/31/15 (0)

Just do it! - Lew 19:30:57 03/28/15 (11)

RE: Just do it! - audiogatorjim 11:40:40 03/30/15 (6)

RE: Just do it! - Lew 04:56:54 03/31/15 (5)

RE: Just do it! - audiogatorjim 12:57:13 03/31/15 (4)

When I was 14,... - Lew 08:21:25 04/01/15 (3)

RE: When I was 14,... - audiogatorjim 18:57:10 04/03/15 (0)

RE: When I was 14,... - audiogatorjim 19:40:20 04/01/15 (1)

Don't you mean the opposite? - Lew 07:12:59 04/03/15 (0)

edit - Lew 08:18:34 03/29/15 (3)

RE: edit - Ivan303 07:17:57 03/30/15 (0)

RE: edit - Awe-d-o-file 06:34:00 03/30/15 (1)

The "edit" option did not show up when I went to edit the original - Lew 07:56:13 03/30/15 (0)

RE: Quad 57 and OTL - Doug Flynn 14:51:38 03/28/15 (0)

Follow Ups

RE: Quad 57 and OTL - powolny 16:33:55 04/04/15 (0)

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