I've posted the link before, but here is my review in Muse
http://museonline.co.za/web/articles.php?artno=381
The amp still crunches nicely - in fact, that's the whole point: to turn the amp up to get the crunch, but keep volume levels sane. With some speakers that break up early (Like the Celestion Blue) you lose a bit of the speaker breakup, but that's not necessarily a bad thing either - I'm finding I can drive my Vox amp slightly harder to compensate and actually end up with a tighter low end overall. Also no fear of blowing the Blue (which Vox amps are prone to doing).