Tiptop Audio CYMBL909 User Manual

Introduction.

The CYMBL909 is a dual voice module featuring the original TR-909 crash
and ride sound generators adapted for modular synthesizer use. The front panel
contains all of the controls found on the original TR-909 drum machine, allowing
you full control over the sound’s volume levels to mix with other drums, and
accent levels. In addition to those original controls we have also added manual
and voltage control of each generator frequency, further enhancing this circuit.

About the Making of the CYMBL909.

The Cymbal is a one-to-one clone of the original circuit found in Roland's
TR-909 drum machine. During the design phase, we created additional features
only when implementation would not compromise the original signature sound.
Cloning a circuit that was designed and produced in the 80's was not an easy
task. A variety of obstacles including availability of the original parts, the modern
SMT manufacturing process, the differences in +/-12V Eurorack power versus the
+/-15V of the original 909, and far many more were addressed in the creation of
this module. To learn more about the process of remaking the sound generators
in this series please refer to the BD808 user guide.

Let’s get started.

On the left side of the module are the Crash controls, on the right are the Ride.
To start using the CYMBL909, take two gate outputs from your sequencer and plug
them into the GATE IN for each sound, plug the CR OUT and RD OUT to your
mixer or sound system, set ACCENT to max, set the LEVEL half way and TUNE half
way. Readjust the TUNE till you hear the original sound of each.

SEQUENCER CYMBL909 MIXER

MIXZ

MIXER A

OUT A

MIXER B

GAIN

BUS MIX

OUT B

PRESET LP STARTLOOP LP END ZOOM

1

TAP BOSS INT EXT

2

BEAT-C BEAT-P

3

4

5

6

7

8

CHANNEL

STEPS MUTE

SLOT

COPY CLEARPASTE

RANDOM

LENGTH REVERSE

REVERSE

ZOOM GLOBAL

REPEAT

FILL

TRIG1

TRIG2

TRIG4

TRIG5

TRIG7 TRIG8 ST/STOP VERTICAL

TRIG3

TRIG6

cymbl909

LEVEL

CLOCK

SWING

1x64

2x32

CLOCK OUT

RESET OUT

4x16

8x8

CLOCK IN

RESET IN

OUT

1

1

2

2

3

3

4

4

5

6

7

8

ACCENT

5

ACCENT IN

6

7

8

LEVEL

CRASH RIDE

TUNE TUNE

VC-TUNE VC-TUNE

ACCENT

ACCENT IN

CR GATE

RD GATE

CR OUT

RD OUT

Tiptop

Audio

2