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dr-01 bass drum
USER MANUAL
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dr-01 bass drum
The DR-01 is the rst of a new series of Corsynth modules
dedicated to analog drum synthesis and it’s also the rst
module of this kind commercially available in MU format.
Create a drum sounds from scratch using a modular
synthesizer is always time and resourcing consuming. With
the DR-01 you will save a lot of space, money and modules
that can be used for other purposes. The DR-01 has all you
need to create bass drums , toms a many other percussive
sounds in just one single space. And thanks to the Tune CV
input is even possible to use the DR-01 to create bass lines.
dr-01 bass drum
Punchy techno drums, industrial drums, drums of the rsts
analog drum machines, FM sounds... With the DR-01 is really
easy to get the sounds that you need at every moment. All
the parameters in the module have been carefully chosen to
be used in a drum synthesis context (envelope times,
oscillator frequencies, oscillator waveform etc ).
These are the DR-01 main features :
- A voltage controlled oscillator with dedicated CV input for
tuning.
- A voltage controlled timbre circuit.
- A dedicated tune modulation envelope.
-An amplitude envelope with three dierent settings for the
attack time.
It’s time to add drum sounds to your synth sequences! .
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Bass drum tunning
dr-01 bass drum
DR-01 Bass Drum
Front Panel
Bass drum decay
Timbre selector
(Soft / Medium / Harsh)
Modulation envelope level
Modulation envelope decay
Tune CV input
Output indicator LED
Bass drum attack selector
(Slow / Medium / Fast)
Timbre CV input
Trigger input
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Bass drum output
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dr-01 bass drum
CONTROL DESCRIPTION
TUNE
This potentiometer sets the fundamental frequency of
the bass drum. The minimum frequency is 25Hz and the
maximum 250Hz
DECAY
This potentiometer sets the decay time of the bass drum.
It goes from 20 milliseconds up to 2 seconds.
TIMBRE
This switch selects the base timbre of the bass drum. The
timbre can be also modulated using the Timbre CV input.
SOFT (middle position): The output wave is a rounded
triangle wave with low harmonic content.
MEDium : The output wave is something between a trian-
gle and a square wave. Medium harmonic content.
HARSH : The output wave is almost a square wave with
high harmonic content. It creates a distorted and harsh
sounded bass drum
AT TA C K
This switch selects how fast is the attack of the bass drum.
This allows to create soft or punchy drum sounds.
SLOW (middle position) : 2 ms
MEDium : 1.2 ms
FAST : 0.7 ms
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dr-01 bass drum
MOD ENV
This potentiometer sets the amount of modulation envelope that aects the bass drum fundamental frequency.
DECAY
This potentiometer sets the decay of the modulation
envelope. It goes from 20 milliseconds up to 2 seconds.
TUNE CV
This input allows to modulate the bass drum fundamental frequency. It has a response of approximately 1V/ Oct
TRIG IN
This input is used to trigger the bass drum. Any signal
with a positive voltage higher that 3.5V can be used.
TIMBRE CV
This inputs allows to modulate the timbre of the bass
drum.
BD OUT
Bass drum ouput
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dr-01 bass drum
DR-01 BASS DRUM BLOCK DIAGRAM
TUNE CV IN
ENVELOPE ( AD )
DECAY
MODULATION
MOD
ENV
TRIGGER IN
OSCILLATOR
TIMBRE
TUNE
TIMBRE CV
AT TACK
ENVELOPE ( AD )
AMPLITUDE
DECAY
AUDIO SIGNAL
CONTROL SIGNAL
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VCA
BASS DRUM OUT
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Trimmers and power connectors
IMPORTANT !!!!
This module has two power connectors (Synthesizers.com and MOTM).
Only one is needed to power the
module. (Synthesizers.com or MOTM).
Never connect both at the
same time.
Synthesizers.com
dr-01 bass drum
+15V+5V-15VN/C GND
MOTM
GND +15V-15V
GND
Synthesizers.com
power connector
Initial frequency
MOTM
power connector
TECHNICAL DATA
Module Format : 5U, MU format ( Synthesizers.com, Moog )
Module Width : 1 MU ( Moog unit )
Module Depth : 52 mm ( 2,05 inches )
Power : +15V@18mA , -15V@18mA
Power connectors : Synthesizers.com , MOTM ( 4 pin )
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dr-01 bass drum
MODULAR LEVEL
MIN MAX
MODULAR SYNTHS
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