WHERE TO BUY?
RADIKAL TECHNOLOGIES
DELTA CEP A: PARAPHONIC MODULAR SYNTHESIZER
KEY FEATURES
Interpolator: Sitting on the left side are the eight + six LEDs, six buttons, and the large knob. This section has several functions. You can recall and save presets, take snapshots, morph through them, set the system tempo, as well as adjust various device settings. The eight LEDs not only display occupied snapshots but above all serve to visualize parameter settings.
MIDI2CV: This is a well-equipped MIDI to CV interface that allows you to convert MIDI signals into control voltages for additional modules. To control the DELTA CEP A via MIDI, you do not need to use any of the interface's outputs - the modulation sources and targets in the DELTA CEP A sections are already prewired.
LFO 1: The LFO has 5 waveforms, MIDI and clock synchronization, and an invertible modulation depth control.
SWARM OSC: The Swarm oscillator provides up to 8 oscillators. Paraphonic play modes (allowing 4 voices to be played simultaneously), pitch quantization, and easy tuning access are the highlights of the Swarm oscillator.
Mixer: This section mixes the outputs from the oscillator and the noise source or an external signal for the filter. The signal of the oscillator can be overdriven.
VCF: The filter section of the DELTA CEP A offers three different filters - a digital 12 dB multimode filter, an analog 12dB multimode filter, and a digital 24 dB lowpass filter.
ADSR: The ADSR envelope section provides crisp sound curves. As a highlight, this section offers a voltage control for the attack and decay time.
VCA: The VCA can be controlled by either the ADSR envelope or the gate signal. The VCA section also provides external inputs for the following FX processor.
FX: The right side of the front panel contains the effect section with delay, chorus, flanging, and phasing effects.
OVERVIEW
The DELTA CEP A semi-modular synthesizer consists of 9 essential synthesis modules whose combination provides a very powerful and straight forward starting point into the world of Eurorack synthesizers. Let’s see, which modules are included in Radikal’s latest brainchild: The system includes one swarm oscillator, a mixing stage with a noise source, a very powerful filtering section around the analog multimode filter plus stereo digital emulations of 12dB multimode and 24 dB ladder filters and one VCA. One LFO and one snappy envelope generator for modulation purposes plus the secret weapon of all Radikal Technologies digital modules, the SNAPSHOT INTERPOLATOR are adding extra excitement to your sonic adventures. The icing on the cake of the sound engine is a digital FX section with incredible modulated stereo delay effects including tape delay, phasing, chorus, flanging, etc.!
In a modular synth system, the different sound generating and altering sections are not connected. The user has to establish all the connections that are necessary to generate sound effects and tones with patch cables. In a semi-modular synth, the most essential connections are hardwired. This means you can play the DELTA CEP A right out of the box. Of course, you can go a step further and add your own module patching.
The DELTA CEP A has a MIDI interface, which is essential when you want to use the paraphonic mode of the Synth. The paraphonic mode lets you play chords and turns the DELTA into the perfect pad and ensemble section. The MIDI Interface has additional outputs for external modules and a special digital bus allows for controlling the SWARM OSCILLATOR RT-311 direct with notes and chords to layer additional voices in monophonic and chords mode using an external MIDI keyboard.
The SNAPSHOT INTERPOLATOR is a very unique feature in the synthesizer world. First, you have the ability to store snapshots of your sound creations into the internal memory. Then you can play these snapshots sequentially for very cool sonic sequences. But that is not all. You can even create smooth transitions from one snapshot to the other for stunning sound morphing effects. Independent from the Interpolator, the snapshot memories can also be used as preset memories and are filled with sounds from our sound designers.
23 knobs, 14 buttons, 28 RGB LEDs, 14 outputs, and 17 inputs – the DELTA CEP A has a great synthesis potential that can even grow by adding additional modules. The connectivity provides the freedom to use it as part of your existing Eurorack system or as an independent solo synthesizer with our special DELTA CEP A desktop case.
Radikal Technologies, the Radikal Technologies Logo, and the Delta CEP A logo are trademarks or registered trademarks of the Radikal Technologies GmbH.
Technical Specifications, features, and appearance are subject to change without notice.
SPECIFICATIONS
Weight: 7.5 lbs
Dimensions: 17.5” x 9” x 8.5”
Power Consumption: 140 mA @ +12 V 50 mA @ -12V
DELTA CEP A DEMO
What does DELTA sound like?
Swarm Oscillator.
The Oscillator section is the heart of every subtractive synthesizer. The oscillator generates waveforms in the audible frequency range. Up to eight oscillators can be heard simultaneously. The oscillator section of the DELTA CEP A provides smooth waveform selection, TLM modulation for pulse width modulation on rectangle waveforms and sound changes on other waveforms, FM modulation, waveform morphing, and more. Highlights include the integrated tone scale quantizer, the chord memory, and the paraphonic playability.
Paraphonic Operation.
You probably know the difference between a monophonic and a polyphonic synthesizer. While a monophonic instrument will only ever produce a single note, a polyphonic synthesizer will allow you to play multiple notes simultaneously. This is basically also possible with the DELTA CEP A - but all voices share one filter, one envelope, and one VCA. For better differentiation, a distinctive name has been introduced for synthesizers with these properties: ‘PARAPHONIC’. Most monophonic synths with a paraphonic play mode have only two oscillators. By activating the paraphonic mode, one can play two keys to produce two different notes simultaneously. Each note is running only one oscillator, which makes the sound very static.
With the DELTA CEP A, this is fundamentally different. Since the Swarm oscillator can produce up to 8 oscillator clones, a chord of up to four voices can be played with two oscillators per voice, making chords sound more alive. Especially with the saturation stage in front of the filter, paraphonic voices show advantages because a saturation level behaves very dynamically when the number of voices (and thus the level at the entrance of the saturation level) changes. This can be used creatively to great effect.
TURN IT UP A NOTCH
Download manuals, firmware updates, and other content for your DELTA.
WHAT PEOPLE ARE SAYING ABOUT DELTA CEP A
