I know this isn't the most Naim friendly site but this is a cracking amp for the money and works great with non-Naim sources and speakers - including pretty high end stuff. It was one of the few amps that coped well with my Revel M22 speakers.

I've had 3 so far and whenever I decide to scale back on my system this is what I buy every time to fill the amplifier gap. And at this price there is no downside as you can shift it on and recoup all your money. Throw in top build quality and reliablity and you can't go wrong.