5. BACK PANEL CONNECTORS
All MAG organs share the same basic connector layout, but depending on the options installed, some
additional connectors may be installed besides the common ones. The following connectors are
located on the back panel, from left to right (viewed from the back). The connectors are in a single
row but are presented in two groups here for convenience.
•SWELL PEDAL: This socket is for connecting a swell (expression) pedal, which will control the
overall volume of the organ. The typically non-linear behavior (in terms of loudness and
equalization) of the swell control in the vintage consoles is replicated, and with the factory
settings, the volume will not be reduced completely to silence when the pedal is fully backed off.
The minimum volume at this position can be set through the external Programmer Unit or the
free Editor software. As in the vintage consoles, the volume can be further reduced using the
VOLUME NORMAL/SOFT tab, which introduces a certain kind of equalization enabling the bass
tones to be heard at low volume. As an alternative to our MAG expression pedals, other
commonly available pedals with the following specifications can be used: 1/4”TRS plug, 10K to
50K Ohms total resistance, with the wiper of the pot connected to the ring of the TRS plug. For
example, the Yamaha FC-7 is electrically compatible, although it has a more limited travel.
•ROTARY SPEED: This socket is for connecting a single or double footswitch (latching type) with a
¼” TRS (stereo) plug, like the MAG FS-1S, FS-1D or the halfmoon HM-1, which will control the
speed of the emulated rotary effect and the speed of a Leslie™ if a proper interface is installed. If
the connected Leslie™ does not support the Stop function, when the Rotary Speed control is set
on Stop, the Leslie™ rotors will keep rotating at the Slow speed.
STOP is obtained when there is no connection between Tip, Ring and Sleeve. (If no plug is in
the socket, the rotary effect is on Stop.)
RUN is obtained by shorting Ring to Sleeve. (If a ¼”TS (mono) plug is in the socket, the rotary
effect is always on Run).
FAST is obtained by shorting Tip AND Ring to Sleeve.
•SERIAL: This DB9 serial port socket is for connecting the optional Programmer Unit.
•MIDI IN P: This socket is for connecting a MIDI pedalboard. If a MAG pedalboard is used, the
needed voltage for the pedalboard is carried by the wires not used for MIDI signals in a 5-wire DIN
cable.
•MIDI IN K: This socket is for connecting a MIDI keyboard, which is particularly useful for single-
manual organs.
