Devialet Chat

The EQ settings for my Quad electrostatics are:

                                                     ROON       REW-Rephrase

Band 1        300 Hz          3.0 dB        Q 2.0        Q 2.38
Band 2       1200 Hz         1.0 dB        Q 8.0        Q 8.47
Band 3       2000 Hz        -2.0 dB        Q 2.0        Q 2.24
Band 4       3500 Hz         1.0 dB        Q 8.0        Q 8.47
Band 5       4500 Hz       - 3.0 dB        Q 7.0        Q 8.32
Band 6       6000 Hz         2.5 dB        Q 4.0        Q 4.62
Band 7      11000 Hz        3.0 dB        Q 8.0        Q 9.51
Band 8      16000 Hz        5.0 dB        Q 0.4        Q 0.53
Band 9      20000 Hz        7.0 dB        Q 1.0        Q 1.5

Although I own the latest Quad ESL 2812; these settings can be used for the ESL 63, 988, 989, 2805, 2905 and the 2912 as well. 
I used a lot of articles, measurements and reviews to come to these conclusions and it has nothing to do with the acoustic environment.
Pure compensation; best worded by the review of the Quad ESL 2812 in The Absolute Sound May 31st 2016.

I also mounted May 2020 Iso-Acoustics Gaia 3 (€ 250) on the back and Iso-Acoustics Gaia 2 (€ 350) on the front of the ESL speaker. For € 600 a super-modification. 
Sounds superb!

Above settings are my main txt files; in the alternate files are the corrections for my Stax 507 headphones now. 
Good listening!