Quad ESL 57 with subwoofer

Has anyone tried adding a sub to a pair of Quad ESLs?
If so, did it work out? What sub did you use and how did you connect it? Thanks.

noromance10-25-2014 9:07pm

bdp24 Details Discussions Posts This discussion Message User 9,505 posts 07-01-2017 at 02:24am Copy Comment URL Report Comment Edit Delete UPDATE! In the intervening years since my 2014 post above, I have learned that hardcore panel speaker enthusiasts recommend employing Magneplanar Tympani-IV bass panels as woofers, or even subs. There is one guy over on the Planar Speaker Asylum who uses them as woofers for his Martin Logan ESL speakers, with an Eminent Technology TRW-17 Rotary Woofer for the VERY low bass. That I would love to hear!
bdp24 Details Discussions Posts This discussion Message User 9,505 posts 10-28-2014 at 02:33pm Copy Comment URL Report Comment Edit Delete The best sub for any dipole is an OB. In the 70's a company named Gradient made one for the ESL63, with two 12 inch drivers facing in opposite directions in an OB "H-frame". A company named GR Research now offers a similar design, but with the addition of the Rythmik Servo-Feedback system. It is available only as a DIY kit, which is two 12 inch drivers and one 370 watt Servo Amplifier. You build (or have built, from the plans on the GR site) an H-frame into which the drivers are mounted. Serious, world-class bass the blends really well with dipole speakers. A pair will cost you about $1500 plus the cost of the H-frames.