What I meant was when the spec refers to a voltage value, unless otherwise specified, it is the RMS value, not peak value, whether it is input or output.Sorry to belabor but to clarify - 'the voltage spec' is sensitivity spec??
Sort of yes. You will get the maximum rated power from a bridged NC252MP, which is 400 W @ 4Ω and 500 W @ 8Ω (versus 355 W @ 4Ω and 177 @ 8Ω for NC502MP). Since when you bridge the amp, the load impedance is effectively halved, you'll lose some ability to drive lower impedance speakers. Hypex recommends using only 8Ω rated speakers when bridging.If this is the case, returning to the earlier discussion re: which is better - a bridged 252 or one channel of a 502 - it would seem that the bridged 252 with an input sensitivity of 1.7 would be the better choice for those of us with input voltage limits of 2 Vrms.
Also, a 2 channel Buckeye NC252MC is USD$499 each, and NC502MC is USD$649 each. So two NC252MP is significantly more expensive than one NC502MP.