Both are £38.99 on Play.com (on sale)
I've had CX 300s before, and I have CX 500s. I'm a big fan of Sennheiser, but I checked out the reviews of the AKGs and they look really good.
My main concern is whether the CX 400 Mark IIs are any better than the normal CX 400s, or better than the CX 300s (and CX 300 Mark IIs) or CX 500s?
Anybody got (or tried) either of these, and able to give me a short comparison?