We want to get more listeners put there using this headphone with a Crack amp. So we're currently offering a $30 discount when you order a Crack kit with a Crack headphone kit. I'm not sure how long our internal bean counters will let me get away with this, so if you have been considering getting Crack and the Crack Headphone now might be a very good time to order...
http://bottlehead.com/?product=crack-otl-headphone-amplifier-kit