Hi,
I am not sure on this as I see you currently have a CYRUS Amp ant this may be a bit too smooth but saw this Yamaha amp AS1000 which was on for 600 now £200( retailed at £1k ) which is reviewed on this site.
I have heard one and quite liked the power and smooth delivery but wasn't overly punchy so may work well with your taste in music , I also like the look but that is my view and if you were willing to look secondhand.
Link http://www.ebay.co.uk/itm/230818040883?ssPageName=STRK:MEWAX:VRI&_trksid=p3984.m1438.l2661
Failing that new maybe a Marantz Pearl Lite as they come up for £500 ex dem quite often.
As you have Cyrus and if you are happy with that style of sound why not look at ex dem Cyrus 8 or new 6 ?
Have fun, just a couple of ideas to look through