I see absolutely NO reason that all cables have to be from the same manufacturer. Firstly, your components are surely not from the same manufacturer, right? (unless you have an all Naim system or something, in which case I would say stick with all Naim wire too...). Anyway, consider the different "jobs" of the different cables. At the least, you will have CD->Pre, Pre->Pwr, Pwr->Spkrs. A particilar brand's interconnect may work best with your CD to solid state Pre, but the same brand's cable may not be the best match from the solid state pre to a tube power amp for example. Then, what if your tube power amp is running high efficiency speakers, or instead electrostatics? There is no way a manufacturer will ever convince me that THEIR speaker cable will work well for both combinations, just because I happen to like their interconnect for my cd player. I agree with Carl to the extent that when someone tells you to buy all the same cables, it is either an easy way out for the salesperson, or a built-in tactic for the manufacturer. Personally, I have never had the same interconnects and speaker cable, although I have on occaision used the same interconnects from source through to power amp.
