Behringer SYSTEM 15 Quick Start Manual page 5

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SYSTEM 15
Percussive Lead
To mixer/ampli er/DAW
A simple, two oscillator lead sound with a hard front end and timbral development which is also suitable for melodic sequencing
Voltage Control (pitch)
Source Destination
External MIDI Keyboard – MIDI Out CM1A MIDI Interface MIDI In
CM1A CV Out via Multiple 921A Frequency Input
921A Frequency Output 921B Frequency Link (in series)
Audio
1st 921B Triangle wave Output CP3A-M mixer Input 1
2nd 921B Sawtooth wave Output CP3A-M mixer Input 2
CP3A-M Output 904A Signal Input
904A Signal Output 902 VCA
902 Signal Output Your Mixer/Amplifier/DAW
Voltage Control (Amplitude)
CM1A s-trigger out via Multiple 2 x 911 s-trigger Input
1st 911 Output 902 Control Input
Voltage Control (Modulation)
921 Sine Wave Out 904A Control Input
2nd 911 Output 904A Control Input
This sound uses two 921B VCOs, with different waveforms, and sounds best if one is slightly detuned. They both feed the 904A LPF, and their relative levels can be
adjusted with the CP3A-M mixer as required. The 904A's output is fed to a 902 VCA, whose amplitude is controlled by the 1st 911 EG
To obtain the percussive edge the 911's settings should be T1 (attack) 2ms, T2 (decay) 200ms, T3 (release) 200ms, E sus(tain) 4 seconds
The 904A is modulated by a slow sine wave from the 921 LFO and by the 2nd 911 EG, which should have settings around T1 (attack) 1 second, T2 (decay) 50ms,
T3 (release) 4 seconds, E sus(tain) 9
MIDI Out
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Quick Start Guide