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Analog Clap Sound Drum Generator Module
- Analog clap module for Eurorack modular synthesizers
- Based on the same circuit used in the classic 909 drum machine
- Trash control allows you to explore a range of timbres
- Pulse-shaper circuit allows you to trigger the module from any trigger, gate, pulse, or clock signal
- Only 4HP wide, so you'll have plenty of space for more drum synths
The CP909 is the TR-909’s analog clap sound generator in Eurorack format. This is yet another low-cost analog drum generator from a legendary drum machine in your modular synthesizer, expanding your Tiptop Audio modular drum machine even further.
The CP909 is an exact reproduction of the original analog circuit and with the addition of just one extra knob, “trashing” the frequency of the internal noise generator, we have added greatly to the spectrum of sounds that can be generated. All that without compromising the signature sound of the TR-909.
The CP909 clap effect is made by a special triple-saw envelope generator that controls the gain of a VCA. The sound source feeding into the VCA is made by a quasi-random logic- based noise generator. Some might call it “digital noise”, though this term might be misleading in today’s world of microcontrollers and sound samples. What really makes the noise generator is a ring of logic gates, so primitive, so 80s, and so much the sound of the 909 Clap!
The CP909 includes a high-powered output gain stage capable of producing hot signals. On the inputs, we have designed a pulse-shaper circuit so you can trigger the CP909 with trigger/gate signals from step sequencers, clocks, dividers, or any other pulse/clock sources. This eliminates the need to shape pulses sent to the module and ensures the same stable sound at peak power, regardless of your pulse source. Based on the architecture of the 909, the Accent input is versatile and able to take in both CV and Gate signals for continuously changing dynamics. All these unique features make integrating this legendary sound generator into your modular synth easy, unleashing the power of real analog drums.
*TR-909 is a Trademark of Roland Corp Japan
- Width: 4 HP
- Depth: 36 mm (1.42 inches)
- Power: 6mA @ +12V , 10mA @ -12V