Ive just bought a Directed 650 amp from www.caraudiodirect.com who are a UK based, as am I. Great for the money!

It supports up to 8V inpurts, and its a 5 channel amp, 4x50rms and 1x250rms.

Sounds good so far, but havent installed everything yet.
I was going for an Infinity RA6006 amp, but this went on special so...