RIT_M RhythmSequencer

SDS Digital

This 4HP'er let's you tap in a rhythm, creates a clock and T/G plus an on-the-fly programmable CV Sequence

As this is a brand new sequencer prototype, I'll try to keep the description short as things will likely change some.
There are several intuitive / automatic Modes in this module that are based on how a sequence is started, and clock jack (in or out) with only a primary settings menu (set & forget) to suit your setup.

The RITM has two variable touchpads, on to tap in a rhythm, and the other to define the loop point. A clock is derived based on this rhythm, loop size, and settable BPM range(i.e. 60 to 120BPM or 90-180BPM). The resulting clock is panel adjustable from 1 PPQN to 96 PPQN.
The "Magic" Clock jack is bi-directional so the RIT
M can be the source clock, or be clocked by an external source.

Beat Quantized... or Not:
Beat quantizing can be turned off to allow complex swing style rhythms that still follow the clock in/out but don't snap to "steps" as with most sequencers. If beat quantizing is turned on, the clock divisions (PPQN) can give many micro divisions to a clock so rhythms can snap to beats. The choice is up to you!

Gate Output:
The trigger/Gate output is precisely the beat you entered by tapping the RHYTHM pad. The duration of each tap will also be output so long "notes" can be achieved during recording a sequence by just holding the pad.

CV Output:
The CV output's default function is to output the CV knob position at the time of recording. This allows real-time control of a VCO, filter element, VCA etc.
Moving the CV knob during a sequence playing will momentarily "take over" the CV jack, and any tap on the Rhythm pad will update the nearest "beat" with the new CV for a loop time after knob is moved, after which the Rhythm pad returns to adding/deleting beats to/from the loop. This is especially useful if controlling a VCO.
There is also a CV quantizing option.

CV input Record:
The CV input gives a CV record capability. New CV's can be laid on to a playing rhythm based on CV change keeping the rhythm but with new CV levels and is continuously updating on any CV change. Can also be used along with the Reset I/O jack which acts as a gate input during a fresh recording. The Gate output will output this signal during record for instant auditioning.

CV input Play:
While playing a sequence, the CV input becomes an offset for the playing sequence at 1V/Octave but non-quantized so the sequence CV can be modulated without using a summing module.

Smooth CV Record:
Smooth recording of a CV pattern can be realized if there is no rhythm. The CV pattern will proportionately speed up or slow down with varying clock rates input or selected. As a clock master, the recorded CV pattern can follow the clock divisions as selected. Reset input will re-start the pattern.
Clock output is derived as usual (if no clock input) and beats can be added to the smooth CV sequence while playback looping. Smooth CV can be up to 1 minute long.

There is now a velocity output that is based on the strength of the rhythm tapped in. The finger pressure is and proximity ramp is taken into consideration to calculate the velocity of any tap.

- Rhythm Loop size is nearly unlimited. (Smooth CV up to 1 minute)
- CV's in sequence can be changed on cue / tap
- Beats can be added/ removed with a tap or hold on Rhythm pad
- Tapping Loop pad will reset a sequence / restart a stopped sequence (on clock point)
- Doubles as a straight tap tempo, great for delays that are clocked
- Doubles as a CV quantizer (1V/Oct) with offset while not looping / recording
- Records the CV knob/CV input smoothly without a rhythm playing and can be re-triggered
- Can output Velocity CV based on pad pressure alone or during a sequence
- Touching both pads momentarily will arm playing sequence to pause at next loop point
- LED's indicate PPQN selection while changing
- PPQN (>last) only updates at loop point so never falls out of sync.
- NEW: Sequential Master-Slave Linking to sync multiple units, clocks, loop points, from master.

The whole idea of this module is to quickly add sequenced T/G/CV control of other modular elements, on-the-fly, without setup time or large HP, displays etc. I think it's a very useful tool and look forward to moving it from the grid board into the rack for demos!

Price breaks:
Because of the great possibilities of cascading the RIT_M, purchasing multiple modules drops the price.
*These are estimated maximum prices assembled & calibrated even if not purchased all at once:*
1 @ 119 US
2 @ 109 US
3+ @ 99 US

Estimated time of availability is October 2017.
(The RIT_M will not be available as a kit at this point.)


  • 35 mA +12V
  • 10 mA -12V
  • 0 mA 5V
  • 40 mm deep

This Module is a prototype or in a concept phase.

$119 submitted Apr 7th, 21:49 by Sandrine | last Change Jul 8th, 13:58 by Sandrine

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