* Front (from left to right):
* Channel 1:
* Input socket for a 1/4“ jack plug
* High/Low switch to adjust input sensitivity High impedance only instruments with a piezoelectric pick-up, Low for instruments with active preamplifiers and magnetic sound pick-ups
* Clip overload indicator
* Gain input level control
* Color mid-range contour filter
* Bass tone control for bass
* Middle tone control for mid-range
* Treble tone control for treble
* Input XLR combination with a socket for a 1/4” jack plug and XLR male socket
* Line/Mic switch to adjust input sensitivity
* Line sources with line level, instruments with active preamplifiers and magnetic
* sound pick-ups, Mic: symmetrical microphone input with 30V phantom source
* Clip overload indicator
* Gain input level control
* Bass tone control for bass
* Treble tone control for treble
* Eff. Pan panorama control to distribute the effects between the channels
* Select push button for the selection of four effects, indicated by the LEDs between return and master (pos.1 warm hall, pos. 2 bright hall reverb, pos. 3 chorus with reverb, pos. 4 flanger)
* Return level control for the internal effect
* Power indicator lamp
* Master level control for the overall volume

Rear (from left to right):
* Phones headphone output
* Tuner output for a tuner after the master control
* Line out preamplifier output after the master control
* DI-out XLR output before the master control
* Send output for an external effect device
* Return input for an external effect device or another signal source, for example CD player
* F/S connection for a double foot switch with which the effects can be switched on and off (See 4. Summary of Operations).
* Power combined mains switch with a mains socket and a fuse holder (1 A slowblow)