MI Audio Megalith 100-160 watt full tube head The best High Gain amp in existence?  The MI Audio Megalith is a 2 Channel amp head (Clean and Overdrive), 160+ watts (courtesy 4 x KT88 valves) 3 x EQ voicings per channel, individual Channel EQ, Bright Switch, Attack Switch, the Overdrive Channel has a 3 position gain-stage switch for low, medium or high gain, 2 x (Foot-switchable) Master Volume , Foot-Switchable FX loop, & handles any cabinet combination. Two Contour controls (one for each channel) – these are akin to a ‘Depth’ control on amps like the Diezel Herbert. An amazing feature, as you can ‘tighten’ up or ‘loosen up’ the feel of the amp in quite a dramatic fashion. Ease of use: There are heaps of tonal options, but the layout is really simple to follow. All the typical controls are present for the two channels, including a number of 3 way dip-switches.