This early 2000's amp was likely built during the era of Mark Sampson's time at the company. The Hot Cat has a slightly different power section, with EL34 tubes instead of EL84, and has a more gained-up sound than the other models. Between the Gain & Clean inputs you effectively have 2 channels, both which perform amazingly for their designed roles. This amp has a fair bit of gigging wear, though it has held up well and still sounds incredible.