I'm not so sure about that I want an amplifier that can gripped my speakers the one that I've been looking at is an accuphase e 470 but it's very expensive do guys have any recommendations of a amplifier that gives a smooth slightly warm sound but this can grip the speakers well.
It won't grip the speakers. The passive crossover components in the speaker totally negate any damping factor that would allow the amp to control the speaker.
In order for amp damping to have any effect on speaker driver control you have to have an active design and the amp must be inside the speaker enclosure and connected to the driver with a very short large gauge wire of very low resistance.
The only effect of a low damping factor practically is to reduce the power available from the amp at high frequencies. However amps with low damping factor sound fine as there is little power demand at high frequencies. If there were high power demands there would be a lot of blown tweeters!