Milesandcoltrane - I've bought three pair of the Cambridge S30's. One was for a system for one of my daughters where they're used with an Onkyo A-5VL integrated that has a very nice built-in DAC with Burr-Brown PCM1796 chips. The second was for some friends who wanted a receiver so I bought a Pioneer Elite XS-A6-J for them. That's a very impressive amp with typical Elite build quality and a smooth, articulate sound, another real bargain like the S30's. The third pair are in my basement being driven by a DIY chip amp.
I've tried them in my living room system driven by a Simaudio I-5 LE and one of the impressive things about them is that even with an amp that cost 16 times what the S30's cost they still sound way better than their price would indicate.
I've tried them in my living room system driven by a Simaudio I-5 LE and one of the impressive things about them is that even with an amp that cost 16 times what the S30's cost they still sound way better than their price would indicate.