I'll add another amplifier which I currently use, the Arcam SA20.
This was over £1000 until recently but can currently be had for well under £1k which, I appreciate, is slightly over the 600 quid stipulated by RM but is a small and worthwhile step up from the Audiolab, as it should be.
Solid build, nice H/P stage, great DAC and a backlit remote. It has a MM stage but I can't comment on whether it measures up or not. No streaming.
User reviews range from 'warm, detailed, punchy' to 'slightly bright' and everything in between ... as usual. All I can say is it sounded better with Stirling BBC Refs than with smaller Quad's. It's good with tiny B&W CM1's though.