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Grendel  |  

DC-2E

  |  Drone Commander 2 Eurorack  |  

User Guide

 1.1 (2015)

 Rare Waves L.L.C., USA

    

rarewaves.net

Contents

Whats Included?

Precautions
Main Module 
Installation
Expander Module 
Signal Diagram
Oscillator controls
LFO controls
Modulation controls
Filter controls
Synchronization
Service information

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Main Module 

Drone Commander DC-2E Main module
Power Cable type 16-26
Mounting hardware kit, M2.5 threads

Expander Module 

Drone Commander 2 Expander module
Tether Cable, 26 pin ribbon
Power Cable, standard 16 pin
Mounting hardware kit, M2.5 threads

Features

2 x Voltage controlled oscillator 

          Square, saw, & PWM waveforms
          Pitch modulation effects

2 x Voltage controlled LFO 

          Tempo generator & clock-dividing sawtooth LFO
           Bipolar depth control

2 x Fixed frequency LFO

          Sine wave LFOs dedicated to pulse width modulation

1 x Slew-limited clock divider

          Pitch slide + trapezoidal lter modulations

2 x Voltage controlled lter 

          Original Grendel Drone Commander lter
          4-Pole low pass gate (-24dB/oct VC-LPF)

1 x Envelope generator 

          Attack-release envelope, linear slope
          Symmetrical attack and release times

The

 

Grendel Drone Commander 2

 was designed to continue the legacy of its 

predecessor, the Drone Commander classic, which we manufactured in a 

volume of about 750 units between 2008-2015.  

Over the years of feedback from dedicated musicians we collected a short list 

of features that were most frequently requested.  

As a result, Drone Commander 2 contains many key upgrades including 

voltage-controlled oscillators, synchronization to external clock, and an LFO 

that can reach slower tempos.  And of course, the numerous requests from 

the Eurorack community of musicians for a modular rack version have been 

honored with the design of the DC-2E Drone Commander 2 Eu 

Expander module.

Naturally, we kept the features that we felt dened the best quality of the 

original.  The lter is almost identical, with the addition of voltage control. In 

addition, Drone Commander 2 retains the solid aluminum knobs, handy push-

pull switches, and sturdy metal construction that characterized the original.

Thank you kindly for your purchase, and we wish you many years of rewarding 

creative music.

Rare Waves LLC

Summary of Contents for Drone Commander DC-2E

Page 1: ...Grendel DC 2E Drone Commander 2 Eurorack User Guide 1 1 2015 Rare Waves L L C USA rarewaves net...

Page 2: ...Grendel DC 2E Drone Commander 2 Eurorack User Guide 1 1 2015 Rare Waves L L C USA rarewaves net Drone Commander 2 DC 2E for Eurorack modular synthesizers Main Module Expander...

Page 3: ...dB oct VC LPF 1 x Envelope generator Attack release envelope linear slope Symmetrical attack and release times The Grendel Drone Commander 2 was designed to continue the legacy of its predecessor the...

Page 4: ...experiencing wet weather conditions there is a risk of humidity affecting the performance of the synthesizer modules If you notice your glasses camera lens or other optics are becoming fogged the same...

Page 5: ...o Line Out Mixer input FX processor Volume pedal Instrument amp Digital audio interface Gate LED shows the envelope generator status Pull up ENV to hold Gate open The LED will remain on LED also light...

Page 6: ...led instrument connect it to your system power supply bus with the 16 26 pin ribbon cable provided Figure 2 Orient the red stripe on the cable toward pin 1 on your power bus connector in the usual man...

Page 7: ...rd pin 1 on your power bus connector in the usual manner The tether cable has enough length to locate the Expander on a different row of your case or several modules away This allows you to choose the...

Page 8: ...h standard 2 5 V control voltages Try the 0 5 volt range when connecting to MIDI CV converters and tabletop analog gear including Grendel Drone Commander classic and Grendel RA 9 Grenadier If SW 3 is...

Page 9: ...c BPF VCF 2 4 Pole LPF Audio Out Tempo Generator Main LFO Clock Divider Slide Generator slew limited divide by 2 Envelope Generator SWEEP depth PULSE depth MOD depth SHAPE control PWM LFO 1 PWM LFO 2...

Page 10: ...MIX CV input allows voltage control of the blend ratio The MIX knob remains active when MIX CV is patched An external audio signal patched to AUX IN will take the place of oscillator 2 in the mix whe...

Page 11: ...iggered once per LFO cycle Pulling up the LFO knob cancels the SLIDE effect This gives PULSE modulations very much like the classic Drone Commander Expander The LFO CV jack controls the LFO rate The e...

Page 12: ...y to VCF 2 and the pure self oscillations of VCF 1 are heard MOD The MOD knob sets the depth of pitch modulation for the oscillators Its range of control is approximately zero to 5 octaves The modulat...

Page 13: ...SHAPE knob disables its effect on PULSE and MOD symmetry no swing SHAPE symmetry is still affected Modulation Controls PULSE The PULSE knob controls the depth of modulation to Drone Commander 2 s lter...

Page 14: ...here are two trim controls on Main Module that affect VCF 1 s behavior Expander The envelope generator can be controlled by an external gate signal to the GATE IN jack The LED next to the ENV knob lig...

Page 15: ...er such as Doepfer MSY2 to control the drum machine Then use a separate MIDI to CV converter to control Drone Commander DC 2E This way both synths will play in synchronization with the DAW To use DIN...

Page 16: ...rts of the DC 2E are designed to be field replaceable with no soldering required Contact us for a current list of replacement part prices Service Your purchase is guaranteed to be free from manufactur...

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