HK 6550 or a Sony ES amp... Some Marantz are nice too but most of these older amps will need servicing for best results.
If you can get one of those Cambridge for £99 it would be great.
Also look for those small chinese class-D or T-amps, some of them are very good.
Apple Airport Express > Beresford Bushmaster DAC > Rega Brio-R > Rega RS3
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