RE: Stacked Quad ESL57s

OTL Asylum

OTL, Output Transformerless Amplifier User Group.

Posted by airheadair (A) on April 10, 2017 at 09:03:12

In Reply to: Stacked Quad ESL57s posted by Ralph on April 5, 2017 at 14:15:33:

I'm repeating myself here, but will chime in to agree with Ralph. My Stax F83's have a very high impedance in the midrange (over 100 ohms), but falling impedance in both the bass and treble (around 4 ohms). They are also very very inefficient, rated at something like 76db/watt, and have the reputation as amplifier killers. But with an subwoofers to take care of the bass, an 80 watt OTL amplifiers drives them beautifully, with astonishing transients and very convincing dynamics.

This post is made possible by the generous support of people like you and our sponsors:

Follow Ups Full Thread

Topic - Transcendent Beast vs. Alan Kimmel OTL - pushpulltriode 19:27:13 04/04/17 (14)

Here's an outside the box thought... - Lew 07:31:25 04/06/17 (0)

RE: Transcendent Beast vs. Alan Kimmel OTL - Ralph 09:17:52 04/05/17 (12)

RE: Transcendent Beast vs. Alan Kimmel OTL - pushpulltriode 11:38:49 04/05/17 (11)

A lot has to do with the ESL! - Ralph 12:02:31 04/05/17 (10)

RE: A lot has to do with the ESL! - pushpulltriode 09:41:10 04/08/17 (4)

RE: A lot has to do with the ESL! - Ralph 08:41:53 04/10/17 (3)

Capacitance, too... - Lew 06:52:58 04/11/17 (0)

RE: A lot has to do with the ESL! - pushpulltriode 08:50:15 04/10/17 (1)

Its pretty similar - Ralph 09:37:58 04/10/17 (0)

RE: A lot has to do with the ESL! - pushpulltriode 13:18:20 04/05/17 (4)

Stacked Quad ESL57s - Ralph 14:15:33 04/05/17 (3)

RE: Stacked Quad ESL57s - airheadair 09:03:12 04/10/17 (0)

RE: Stacked Quad ESL57s - pushpulltriode 15:02:19 04/05/17 (1)

Sure. 60 watts works fine with 2 ESL57 stacked too. nt - Ralph 07:55:44 04/06/17 (0)

Follow Ups

RE: Stacked Quad ESL57s - airheadair 09:03:12 04/10/17 (0)

Post a Message!