These days, unless you want original soluble nylon coating for your Original Quad Electrostatic Speaker, we recommend that you seek out parts from ER Audio, Perth, Western Australia.  All of their materials are of the very highest standard and will last longer than the older, more traditional materials.  They are also guaranteed to give you the same tonal results as the original Quad 57 or 63.  However, if you still want the original soluble nylon coating for you original Quads then use the Contact page on this site to reach us for a supply this older material.


Dr Gary Jacobson