New for 2009, the Metropolitan is the finest amplifier ever produced by Tone King. It is an entirely new design, with an exciting new sound, driven by the warm resonance, midrange chime, and three-dimensional sound of its new speaker and cabinet design, and the enhanced sustain of its ultra-pure signal path. It also includes the breakthrough new Phase-4 output power control technology developed by Tone King, which gives you the sound of natural power tube overdrive and distortion at any power level from 0.1W to the full 40W. The Imperial delivers the authentic sound of the 1950s and 1960s. It has the same raw, slightly unrefined tone and spongy feel of a genuine 40-year old vintage amp. With two preamp channels, reverb, and tremolo, the lightweight (30lbs), low power (20W) Imperial is the ideal small gigging amp.