VM907A Fixed Filter Bank

CP3 Console Panel Mixer

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VM958 Keyboard/VCO Interface VM960 Sequencer VM962 Sequential Switch

VM912 Envelope Follower VM928 Sample Hold VM Miniverse Glide VM Miniverse Poly Glide VM Miniverse Poly VCA VM Miniverse VCA

VM2500 Dual Reverberator Module 1025 VM1630 Frequency Shifter VM905 Reverb

VM2500 Dual Envelope Generator Module 1003 VM2500 Dual Envelope Generator Module 1033 VM2500 Quad Envelope Generator Module 1046 VM911 Envelope Generator VM Miniverse Contour VM Miniverse Poly Contour

VM2500 Filtamp Module 1006 VM2500 Multimode Filter Resonator Module 1047 VM904A/B/C Filters VM907A Fixed Filter Bank VM914 Fixed Filter Bank VM Miniverse Filter VM Miniverse Poly Filter VM Rackmode 12 Stage Phaser VM Rackmode 16 Channel Vocoder VM Filtomika VM Poly Filtomika

VM2500 Synthesizer Voice Module 1045

VM2500 Oscilloscope Module 1019

VM2500 Dual Four-Channel Mixer Module 1051 CP3 Console Panel Mixer

VM2500 Oscillator Module 1004-P VM2500 Oscillator Module 1004-R VM2500 Oscillator Module 1004-T VM2500 Dual Noise/Random Voltage Generator Module 1016 VM2500 Dual Oscillator Module 1023 VM901 Voltage Controlled Oscillator VM901ABBB Voltage Controlled Oscillator VM921 Voltage Controlled Oscillator VM921ABBB Oscillator Bank

VM2500 Modamp Module 1005 VM2500 Sample & Hold Module 1036 VM911-A Dual Trigger Delay VM Rackmode 10 Band Graphic EQ VM Rackmode 3 Band Parametric EQ VM Rackmode Frequency Shifter VM Rackmode Ring Modulator VM Rackmode String Filter

VM2500 Preset Voltage Module 1026 VM2500 Clocked Sequential Control Module 1027 VM2500 Mix-Sequencer Module 1050

VM903 Random Signal Generator VM923 Filters/Noise VM Miniverse A-440 VM Miniverse Noise VM Miniverse Oscillator VM Miniverse Poly Oscillator VM Rackmode Poly Vocal Source Oscillator VM Rackmode Vocal Source Oscillator

VM2500 Blank Panel Module 1001 VM2500 Triple VCA Module 1042 VM902 Amplifier VM927 Multiple VM984 Four-Channel Matrix Mixer VM995 Attenuators VM Miniverse Mixer VM Miniverse Poly Mixer

The VM907A Fixed Filter Bank consists of eight bandpass filters that attenuate frequencies at 1/2-octave intervals as well as fixed corner-frequency lowpass and highpass filters. Its intended use is to create more realistic instrumental sounds by imparting a pattern of peaks and dips to the audio spectrum of synthesizer waveforms.

Inputs, Outputs, and Controls

Lowpass- A low pass filter allows frequencies below the cutoff frequency setting to pass through, but blocks frequencies above the cutoff frequency. This knob does not control the cutoff frequency; it controls the volume of frequencies below the fixed 175 Hz cutoff frequency.

Bandpass Filter volume knobs- Each of the eight main knobs corresponds to a medium-Q, four pole, dual stagger-tuned bandpass filter. The input signal is presented to all the filters and the knobs collectively behave like an output mixer. At zero, that channel is completely off. When everything is turned up, all filters are heard and the response is a bumpy spectrum with a peak at every center frequency and a dip in between.

Highpass- A high pass filter allows frequencies above the cutoff frequency setting to pass through, but blocks frequencies below the cutoff frequency. This knob does not control the cutoff frequency; it controls the volume of frequencies above the fixed 4000 Hz cutoff frequency.

Input jacks- Patch audio signals in here.

Output jacks- Summed output of the fixed filter bank.