Crossfade LP= Fart cannon designed for portable devices, thus more bass quantity unamped. Not much audio fidelity though, and they're pretty reminiscent of the xb500s. Well, at least that's what I've read.
Pros= Great quality headphones that need an amp to get the bass out, but they have very durable drivers that are able to withstand a crapload of eq without distorting and frequency bleeding.I'm guessing here, but they're probably on the level of the M-100 when amped properly and with better earpads on (both on quality and quantity).