Selling my headphones so I dont need this anymore either. It is the Bottlehead Crack OTL amp with speedball upgrade. It is in great shape powers my HD650's flawlessly, if you look at reviews you can see that this is a bargain of an amp. From bottle head the kit costs $270 + Speedball $120+ assembly $190 = $595. I built mine with the help of a professional electrical engineer with 30+ years experience so I feel confident it was built correctly. Id like to get close to $400 but im open to offers as well.
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10/30/12 at 12:04am - last bumped: 11/17/12