I used an Exposure Super XV MC exclusively for about 15 years. It's a great sounding integrated amp with an extraordinarily good phono stage. Not faultless, though. It's noisier than some amps, has very primitive mains noise filtering and clips nastily when pushed.
For £450, my suggestion would to push the budget by £50 and get a well sorted Quad 34 pre amp and a Quad 520/521 pro series stereo power amplifier (or a 606 if you can stretch another £100 or so).
After going mental with complex and expensive Linn Aktiv setups to unnsuccessfully get something that made music sound nicer than the Exposure, I took a punt on a 520 (Around £250) and, subsequently, a QSP (£500 or so S/H) and a very late 34 (About £250).
In terms of power, refinement and flexibility, I can't think of anything S/H to match a 34/520 combo at the same price - faultless hardware with no foibles that I've been able to detect. A 520 will drive most speakers to ear bleeding levels without difficulty, cliping or distortion. The 34 phono sections are very good and it even has tone and balance controls for in-room correction - which I missed more than I had realised.
Budget for adapters or cables, as, being pro amps, the 520 series uses XLRs for inputs and speakers. Also find a 34 with an Orange Quad logo, as these are the very last made and will be properly optimised for modern, higher gain, line level sources.
