Or the reap panel you find:
- the Power on and Stand by switch,
- the Full power/Harmonics switch (Penthode/Triode mode),
- the series/parallel FX loop with mixer knob,
- the Resonance control which adjusts the low frequency response of the whole amplifier,
- the Presence switch adds definition and brilliance to the sound of the whole amplifier,
- an external speaker out with the Impedance Selector,
- the Footswitch input jack.