Moog Music Minimoog Voyager XL (User’s Manual Addendum) User Manual
Moog Music Musical Instruments
Minimoog Voyager XL User’s Manual Addendum
Understanding the LFO2 Module and MIDI Implementation
Specifications subject to change without notice
moogmusic.com
The LFO2 module on your Voyager XL is a very powerful and flexible sonic tool to extend your
modulation capabilities in many ways. The primary use of the module from the front panel is described
very well in the Voyager XL manual; however, we would like to take the opportunity to describe it in more
depth and to explain some of its more advanced features and MIDI capabilities.
PRIMARY FUNCTION
The LFO2 module is primarily designed to augment the standard LFO sources on the Voyager. Thus the
standard front-panel rate is designed to be slower than the Voyager LFO allowing you to add slower
modulations than previously available.
Using the front panel RATE knob, you can control the LFO frequency as shown:
0.02 Hz (50 seconds) to 20Hz (0.05 seconds)
There are three standard outputs for the LFO2 module. The first two are available on the LFO2 module
and are labeled LFO(+) and LFO(-). These are complementary outputs which means that LFO(-) is
always the complement of LFO(+).
If a voltage on LFO(+) swings from -5V to +5V, then the voltage on LFO(-) swings from +5V to -5V. If the
voltage on LFO(+) is +2.4V, then the voltage on LFO(-) is -2.4V.
Complementary LFOs allow you to create some very interesting sonic effects, since while one CV is
increasing, the complement is decreasing.
The RATE LED is always reflecting the state of the LFO(+) output.
ATTENUATOR CHANNEL 1: LFO(+) OUTPUT
Additionally, you can access the LFO(+) output directly from the output of ATTENUATOR Channel 1
when nothing is connected to the input of this channel. In other words, the output of Channel 1 is
normalled to LFO(+).
This is very useful to control the RANGE and AMPLITUDE of the LFO waveform before sending it to your
destination. This allows you to both play the LFO dynamically by adjusting the OFFSET and AMOUNT
on the Attenuator, but also to be able to dial in the most musical window of the destination CV that the
LFO is modulating.
EXTERNAL RATE CV
On the front panel of the LFO2 Module is a jack input labeled “RATE CV”. This allows you to connect an
additional control-voltage (0V to 5V range) to further control the rate of the LFO2 module.
The external RATE CV and the front panel RATE CV are additive which means that they work seamlessly
together to create a full CV control range of 0V to 10V, each control adding a 5V range separately. For
example, if the external RATE CV is 1.5V and the front-panel RATE CV is 2.4V, then the final RATE CV
is set to 3.9V. The total CV voltage is capped at 5V keeping the maximum front panel frequency range to
20Hz (see table below).