Canford Audio are pro suppliers in the UK, Ireland and Europe. Their catalogue is available to pro concerns from Canford Audio, Crowther Road, Washington, Tyne & Wear, NE38 0BW United Kingdom E-mail email@example.com or firstname.lastname@example.org
I've used Canford's starquad cable and found it to be very good. The quality and performance of other cables is equally good.
Hope this helps