1 : Crystal (volume, treble, mid, bass, master, toggle bright)

2 : FMP100 (volume bright /volume normal, treble, mid, bass, master)

Presence;

Double master volume;

Bypassable effect loop with send and return volume;

Channel selection by footswitch or by manual rotary control;

     5-button footswitch:

                Buttons 1-3 channel selection,

                Button 4: Master Volume 1/2,

                Button 5: fx loop on / off;

Output stage selection: TRIODE or PENTODE fashion;

Selector output impedance (ohms 4/8/16) with double output in parallel.