Radikal Technologies Delta Cep A is a semimodular paraphonic synthesizer voice with the following parameters:

Interpolator

The Interpolator stores patch memories of the synthesizer and allows for automatic sequential recall and crossfading between these patches.

Controls:

• Interpolator/Patch Select knob

Buttons:

• Manual Mode/Shift
• Tempo
• Snap
• Mute
• Blend
• Memory

MIDI2CV

• The MIDI to CV Interface controls the internal synthesizer and external synth modules.

Buttons

• MIDI Learn Button

Inputs

• MIDI

Outputs:

• Gate
• KB-CV
• CV
• Clock
• Clock Reset

LFO

Controls:

• Depth
• Speed

Buttons:

• Waveform Select

Control Voltage Inputs:

• Speed
• Depth
• Sync

Output:

• LFO Out

Swarm Oscillator

The swarm oscillator is a bank of up to 8 oscillators that can be tuned in chords, clusters or fat detuned multi-oscillator sounds.

Controls:

• Wave/TLM knob
• Pitch knob
• Detune knob
• Mod Depth/ Mod wheel depth
• Swarm density

Buttons:

• Paraphonic mode switch button

Control Voltage Inputs:

• FM
• TLM and Waveform Modulation
• 1V/Oct Pitch Input

Outputs:

Swarm Oscillator Output

Mixer

The mixer controls the balance between external signals, the swarm oscillator and the noise generator.

Controls:

• External/Noise Level
• Oscillator Level

Control Voltage Inputs:

• External Input
• Modulation Input

Outputs:

• Noise
• Mix Output

Analog Multimode Filter & Digital Multimode Filter
The Delta has one analog and one digital multimode filter to choose from.

Controls:

• Cutoff
• Resonance
• Cutoff Mod/KB-Scale
• EG-depth/ Velocity

Buttons:

LP, BP and HP switches

Control Voltage Inputs:

• Cutoff
• Resonance
• Filtertype-Interpolation

Outputs:

• Filter Output

ADSR generator

The ADSR Generator creates fast, snappy envelopes and offers CV control over Attack and Decay times.

Controls:

• Attack
• Decay
• Sustain
• Release

Buttons

• Gate

Trigger Input

Control Voltage Inputs:

• Attack
• Decay

Outputs

• Envelope Out

VCA

Controls:

• Level
• EG-Depth/Velocity

Button:

• EG/GATE

Control Voltage Inputs:

• Modulation
• FX In Left
• FX In Right

Outputs:

• Dry Out

FX Section

The FX section is the perfect addition to this synthesizer voice.

Controls:

• Time/Modulation Rate
• Feedback/Modulation Depth
• Dry:Wet/FX-Select

Outputs:

• Out L
• Out R

Current Draw

200 mA +12V
50 mA -12V
0 mA 5V

Dimensions:

23 mm deep

The Delta CEP A can also be used as a standalone synthesizer, with Radikal’s Delta CEP A desktop casing.