Electrostatic Solutions produces high quality replacement electronics for Quad electrostatic loudspeakers including the original ESL, ESL63, ESL98 , ESL05 and ESL12  series.  For sale is a pair of EHT power supply boards for the original Quad ESL.

All Electrostatic Solutions boards are exact drop-in replacements requiring no changes or modification to the speakers.   Boards are double-sided, plate-thru hole type, and are assembled using conservatively rated components.  High voltage boards are given a heavy conformal coating; no additional wax coating is required.  All boards meet or exceed original Quad specification.  EHT boards come with the necessary stand-offs to retrofit the EHT frame assembly.

We offer a 30-day money back guarantee of satisfaction and 3-year warranty.  Boards come with complete instructions for installation.

Electrostatic Solutions is celebrating our 10th year of service to the Quad community.  We have produced thousands of replacement EHT boards in that time with zero failures!   Quality EHT boards will improve the performance of your Quad and our standard replacement EHT board is a great option for speakers with weak or imbalanced sound.     

   

Electrostatic Solutions offers sales, service and rebuild options for  all Quad electrostatic loudspeakers.  Check us out on the web!