SB12 Ratcheting Trigger Sequencer

Product Description

 

(This module is included in the System B)

 

The SB12 is a vintage style trigger sequencer with per step ratcheting (stuttering) features that can be used in one of three different modes:

 

• A 16 step, 1 track sequencer (16×1).
• A 8 step, 2 track sequencer (8×2).
• A 4 step, 4 track sequencer (4×4).

 

The three modes can be toggled with a switch. In 16×1 mode only out4 is the main output of the one track. In 8×2 out2 and out4 are the main outputs of the two tracks. And in 4×4 all out1, out2, out3 and out4 become the main for all 4 tracks. Whenever and output is not the main, it still outputs usable triggers when the current step led is in it’s row.

 

The module can be clocked using an external clock in or the internal clock (when no cable is connected to clock in). When Reset In is low (<=0.15V) the sequencer is playing (when it receives clocks/triggers). When Reset In is high (>=0.25V) the sequencer is stopped and reset to the beginning*. When Reset In is mid level (between high and low), the sequencer is paused**. When there is no cable connected to Reset In, the SB12 will be driven by the Start/Pause button. The Reset button will just rewind to the beginning*.

 

Modular trigger sequencers usually can output only one trigger per step. The SB12 has a unique ratcheting (stuttering) feature where multiple triggers can be sent per step. The number of steps can be dialed individually for each step. A Swing amount (that works per step) can be dialed using the Swing knob. The Skip knob controls how many triggers are skipped (from swinging) after each swung trigger.

 

The length knob is used to control the length of the gates/triggers of out1, out2, out3 and out4. The Mix Out gives the logical OR of all 4 outputs. There is a Forward/Reverse/Ping Pong switch to choose which direction the sequence should go.

 

*Actually it resets to the end of the sequence so that the next clock will jump to the begging (first step).

**In Eurorack, there is usually NO in between mid level (Pause). Sequencers are either playing or stopped. But can not be paused and then resumed. We introduce PAUSE because DAWs usually have pause in there transport control.