I've tried the Alpha and the Gentex earlier, ended up with a Gentex which i modified my DC headset into. Not enough room for that in the Alpha, unfortunately. The Alpha did a poor job on noice protection, a lot of resonance within that hollow shell I believe. The last years I've only used a headset, but now I'm looking at trying out the Gallet, most likely with a modification on the earcups.
And here is a link to the dealer in Norway:
www.flyvedlikehold.com