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 sales@canford.co.uk or export@canford.co.uk
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