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L. L. Electronics Rozzbox One V2 Polyphonic Synthesizer

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The RozzBox V2 Poly Synth with tube filter is a 5-voice polyphonic synthesizer with digital oscillators, digital and analog filters on each voice, and one additional all tube filter.

In addition to the the classic design of a 4-oscillator polysynth with analog filters, the RozzBox features some functions that can’t be found on any other synthesizer, such as the Hacker, the chaotic filter mode, and switchable aliasing of the oscillators.


4 digital oscillators with standard and 16 additional waveforms – hard-sync possible

Configurable FM engine with 7 algorithms

Noise, external audio input, ring modulator

2 independent filters per voice

Includes 3 self-resonant Filter-Types:
- Digital high pass/low pass filter with resonance and 24dB/octave (4 filter poles)
- Analog low pass ladder filter with resonance and 24dB/octave (4 filter poles)
- Completely tube-driven analog low pass filter with resonance and 12B/octave (2 filter poles)

2 LFOs with standard waveforms and wave tracking, sync with MIDI

2 ADSR Envelopes with switchable lin/exp characteristics and trigger modes

4 completely independent sequencer lines per voice, each with its own running mode and synchronization settings

Envelope follower with separate input

Complex 4-point modulation matrix with 16 sources and 16 destinations

Complex trigger matrix with unlimited connection count, for interconnection of LFOs, sequencers, envelope triggers, MIDI clock,

The switchable “Hacker” adds artificial analog aliasing (tunable)

Bit reduction / Sample rate reduction

‘Chaos’ mode of the digital filter

Digital hard clipping

Full MIDI control of every parameter

Technical Specifications
Type: Analog, Digital
Synthesis: Frequency Modulation, Subtractive
Oscillators: 4
Waveforms: Pulse, Saw Up, Sine, Square, Triangle, White Noise
Osc Modulation: Envelope, Keyboard, Knob, LFO, Mod Wheel, Oscillator, Glide / Portamento, Sequencer, Sync Hard, Velocity
Oscillator Notes:
+ 4-OP FM with 7 Algorithms
+ 14 additional waveforms
+ 2 user drawn waveforms
Envelopes: 2
Evelope Paramerters: Attack, Decay, Sustain, Release, Freerun, Polyphonic, Triggered
Filters: 2
Types: 12dB Slope (2-pole), 24dB Slope (4-pole), High Pass, Low Pass, Resonance, Serial, Parallel
Filter Modulation: Keyboard, Knob, LFO
Filter Notes:
Filter 1: Digital high pass/low pass filter
Filter 2: Analog lowpass ladder filter
Filter 3: Tube-driven analog lowpass filter with resonance and 12B/octave (2 filter poles)
LFO: 2
LFO Parameters: Sample & Hold, Saw Up, Square, Triangle
Polyphony & Tuning
Polyphony: 5
Timbrality: 5
Tuning: Standard
Modes: Mono, Polyphonic, Split, Unison
Patches RAM: 200
Storage: Internal
Editing: MIDI
+ 4 independent Seqs per Voice
Case: Desktop
Controls: Buttons, Knobs, Switches, Velocity
Display Type: LED, OLED, Backlit
Dimensions (WxDxH): 10 x 6 x 3 1/2 inches / 253 × 150 x 90 mm
Audio Output Connections: 1/4" Phone Jack, Mono Out
Audio Output Count: 6
Audio Output Notes: 5 x 1/5" voice outs
Inputs: 2 x 1/4" audio in, evelopfollower
DAC Bits: 16
DAC Frequency Rate: 44.1
Year Released: 2008
Design Notes:

Designed by Kilian Leonhardt
Manuals & Documents
Patch Sheet

Product Links
Company Product Sites:
[+] www.rozzbox.de
MSRP List Price: $3,000 - convert
Retail Street Price: $2,999.99 - convert
Used Price: $2,000 - convert
References & Sources

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