Category Archives: Eurorack

Grendel DC-2, Formant Filter, RA-99 Grenadier

Key of C minor, tempo 84 BPM.
This synth demonstration from Rare Waves uses the Grendel DC-2 as a tone source. Grendel Formant Filter provides vowel filtering, and Grendel RA-99 Grenadier is performing the LFO duties. Rare Waves Hydronium is used as a MIDI-CV converter to set the pitch of the DC-2’s oscillators. In the picture you also see a prototype Polyphonic Strobe Tuner, which provides a real-time pitch analysis. Also heard in the mix are our prototypes of a Surf Sound Synthesizer and Spring Reverb.

Grendel DC-2

Grendel Drone Commander 2 Eurorack coming soon!

Grendel Drone Commander 2 eurorack is back by demand. The Grendel DC-2 brings hair-raising analog tones with 2x VCF, 2x VCO, multiple LFOs, AR envelope, and CV-Gate interface with multiple V/oct inputs. The new model comes with a slightly updated control panel design; Grendel DC2 is now a single module 35HP width, made in non-reflective brushed aluminum, silver or black anodized. Available January 2021. More details T.B.A. soon!

Hydronium Eurorack voice module: new from Rare Waves!

Rare Waves Hydronium analog synthesizer is now available in Eurorack format, as a DIY kit ($225) or pre-assembled ($359).  Hydronium is a high quality electronic music instrument with “the works” – MIDI and CV-Gate control + semi-modular patachability.  Its great tone and playability will invite you to stay up late making tracks!

Drone Commander 2 Standalone in Custom Colors

The Drone Commander 2 Standalone is now available in custom tolex color finishes!

custom colors DC2e case

Drone Commander 2 Standalone

dc2e comp

We’ll soon be offering the Grendel DC-2e Drone Commander 2 in a standalone format. It comes with a custom fitted Eurorack case. The case features a removable lid, tolex vinyl covering, and convenient power supply. Orange and black finish are standard options; custom colors available by request.

Drone Funk

Synthesizer demo with Grendel DC-2e Drone Commander 2 Eurorack and Grendel RA-9 Grenadier. Two tracks of DC-2e, one track of RA-9, plus a touch of mystery synth. Grendel synthesizers are available from I/O Music Technology, Detroit Modular, Switched On, NoiseBug, Perfect Circuit Audio, Analogue Haven, Noise Kitchen, and SchneidersLaden.

Triple Grendel synth jam

Demonstrating some sounds you can get with the Grendel DC-2e Eurorack voice modules, and the Grendel RA-9 Grenadier. And a third, mystery synth!

Grendel synthesizers are available from I/O Music Technology, Detroit Modular, Switched On, NoiseBug, Perfect Circuit Audio, Analogue Haven, Noise Kitchen, SchneidersLaden.

DC-2e and RA-9

Demoing the Grendel RA-9 Grenadier and DC-2e Drone Commander 2.  A sequenced LFO effect is obtained by patching the Grenadier’s sequencer output to the LFO CV input of DC-2e.  The track was composed with MIDI in Reaper DAW software, using a 4-channel MIDI-to-CV converter to interface the analog intruments.  The analog snare drum and bass drum are new prototype designs in development here at Rare Waves…

Grendel DC-2e Eurorack

In stores now!

This video walks through getting started with the Grendel DC-2e Drone Commander 2, beginning with using the Main Module by itself (0:30). Next, see how to control it from a MIDI keyboard, using the Expander module and a MIDI-CV converter (3:40).

A self-patch that gives additional filter modulation is demonstrated (5:35). After that, one of the MIDI-CV converter’s auxiliary CV outputs is patched in to control DC-2e’s LFO rate with the MIDI mod wheel (7:00).

The next section demonstrates VCF 1’s self-oscillation (8:35), including how to cancel the filter’s self-oscillation so only the dry tone of the VCOs is heard (9:50). Then, VCF 1 is set up as a third oscillator, creating a constant-pitched drone note to accompany melody played on the VCOs (10:50).

Last, some examples of pitch modulation using the MOD knob are shown (11:40), leading to full-on crazy town.