Using NAC272/NAP200DR paired with ProAc D20R. I would like to upgrade my PreAmp with a 2nd hand XPS 456xxx offered by Central Audio, U.K. at around £1500 or, I should save the penny for a latter prospect trade-in a NAC282 instead ?
I think you really need to think through your longer term aim. The XPS is a good acquisition if you intend to stay with a Naim source i.e a NDX or retain your 272 for any length of time. If on the other hand you think you might shift to another brand for your source then I’d be inclined towards the 282 which will work brilliantly when powered by the DR end of the NAP 200.