The Matchless Lightning's interactive tone controls influence each
other in a very dynamic way and pull each other's range and reach up and down.
Actual tonal possibilities are very extensive and it produces loud output
volumes not normally associated with a 15 watt rating.
The Pro-grade single channel preamp with its interactive
tone controls is coupled to a serious dual-EL84 power section with a tube
rectifier. All models have active EQ to attain an excellent array of complex
tones. User controls include Volume, Interactive Bass & Treble, and Master