Dreadbox Nyx V2 Manuale utente
30 eurorack patch points
in Athens, GR
2 Oscillators
2 Function Generators
Extensive Digital Reverb
ANALOG SYNTHESIZER
12-24dB Dual Filter
Owner’s Manual
Contents
Introduction ..................................................................... 3
The Oscillators ................................................................ 4
The Filter ......................................................................... 5
The Modulators .............................................................. 5
The Routing .................................................................... 6
The LFO ........................................................................... 9
The Reverb....................................................................... 9
The Amp / Drone Mode ................................................. 9
Patch Bay ...................................................................... 10
MIDI Interface and DIP Switch ..................................... 11
The Service Mode ........................................................ 12
Limited Warranty .......................................................... 13
Nyx V2.0 / Release Date: 07.05.2019
After the warm embrace of the Nyx V1 synthesizer, it was time to follow
the idea hiding behind the Erebus V3. The new version of Nyx synthesiz-
er has adapted to the format of the Erebus V3 and more features have
been added to its arsenal, including:
• 2 Voltage Controlled Oscillators
• White Noise Generator
• Extremely Flexible Dual Filter from simple 12dB/oct Low Pass,
up to 24dB variable width Band Pass
• Multiple Routing Options
• 3 Loopable Envelope Generators
• Drone mode
• Modulated Reverb, ideal for Ambient sounds (new algorithm)
• 30 patch Points
• Auto-Tuning Function
If you have any suggestion or corrections for this manual please send an e-mail to
dimitra@dreadbox-fx.com
3
The Oscillators
The Nyx v2 is equipped with 2 voltage-controlled, analog oscillators (VCOs). Both OSC 1 and OSC 2
offer identical controls and features, except OSC 2 offers a triangle wave instead of a pulse wave.
We suggest you to use the Nyx v2 with a MIDI interface, as its paraphony and oscillators’ tuning preci-
sion heavily relies on MIDI.
OSC 1 and OSC 2 Controls:
1. TUNE knob - allows for precise tuning of each
VCO at ± 12 semi tones.
2. Octave Switch - transpose the VCO pitch over 3
octaves. When using the synth via CV, this should
be left to the middle position, as it is MIDI based
and calculates the autotuning correction.
3. Wave Select Switch - to select either the saw
wave or pulse wave for OSC 1 or the saw wave or
triangle wave for OSC 2.
4. GLIDE slider - allows independent control of the
glide amount for each VCO. This will only work via
MIDI, CV inputs ignore the GLIDE amount
5. MIXER - controls the level of each VCO. Please note that some “negative” amount is allowed, so as to
assist a better CV via the patch points.
6. SYNC - Hard syncs VCO2 to VCO1 pulse. Please note that if VCO2 is at a lower frequency than VCO1,
the effect can often have no result.
How to make an EXTREME DEEP BASS sound. Here is an example you MUST try. Make sure that the
Oscillators are tuned with precision.
4
The Dual Filter
Filter Controls:
1. CUTOFF knob - sets the Cutoff frequency of both lters
2. RES knob - controls the amount of resonance (sometimes
referred as Q) to the lter cutoff frequency
3. OFFSET knob - sets the Cutoff difference of the second l-
ter. Normally is set at 50%
4. MOD ROUTE
OFF: No Modulator (MOD) controls the Filter
1/2 : MOD1 controls Filter1
MOD2 controls Filter2
1+2 : Both Modulators control both Filters
1 : Only MOD1 controls the Filter
About the Dual Filter
The Nyx V2 Synthesizer, is equipped with 2 pre-fed Filters, each at 12dB/oct. You can achieve various
Filter combinations, from a Classic 24dB/oct Low Pass or even a variable width Band Pass.
Please refer to the “ROUTING” for more info.
The Modulators
Nyx V2 offers 3 Digital Modulators/
Envelopes. MOD1, MOD2 and the AMP
modulator.
When on Envelope mode, each time a
MIDI note is ON or a Gate is triggered,
the Envelopes will start doing their cycle.
When on LFO or Drone (for the AMP) Mode, the Modulators function as Cycling Envelopes.
Having both Rise and Fall at 0% and Hold at a decent amount, will
result in a constant high, but with short “off” bursts.
5
Rise stands for the Attack time
Fall is the Decay and Realease time
Hold is the Sustain Level
Rise is the rise time
Fall is the fall time
Hold is the time that is left on a high state
ENVELOPE
LEVEL
NOTE ON
NOTE OFF
6
The Routing
The routing section is the most important part of the Nyx v2 synthesizer. Understanding how it works,
is the key to create complex sounds. There are 2 routing controls (+ the MOD Routing, which is ex-
plained on the Filter section), VCO and VCF.
Let’s have a look at the following scheme :
VCO ROUTE
NOR: Stands for NORMAL. Both VCOs are sent to VCF1.
SPLIT: VCO1 is being sent to VCF1 and VCO2 is being sent to VCF2.
VCA: Both VCOs are being sent directly to the VCA.
You can see the main parts of the synth. These
will be routed now via the routing controls
VCO1
VCA
VCF1 LP
HP
VCO2 VCF2 LP
HP
VCO1
VCA
VCF1 LP
HP
VCO2 VCF2 LP
HP
VCO1
VCA
VCF1 LP
HP
VCO2 VCF2 LP
HP
VCO1
VCA
VCF1 LP
HP
VCO2 VCF2 LP
HP
HALF: Both VCOs are being sent to VCF2.
VCO1
VCA
VCF1 LP
HP
VCO2 VCF2 LP
HP
VCF ROUTE
LP: Stands for LOW PASS. Both lters are set to a Low Pass mode and in series.
VCA
VCF1 LP
HP
VCF2 LP
HP
VCA
VCF1 LP
HP
VCF2 LP
HP
VCA
VCF1 LP
HP
VCF2 LP
HP
VCA
VCF1 LP
HP
VCF2 LP
HP
BP: Stands for BAND PASS. The lters are in series, but VCF1 is on HP mode and VCF2 is on LP mode.
HP: Stands for HIGH PASS. The lters are in series and both are in High Pass mode.
PAR: Stands for PARALLEL. The lters are in Low Pass mode, but they are independant from each other.
x
x
x
x
x
x
x
x
7
8
Now combining all the Routing information, we have created a table with the following options.
If you combine all the above with the Modulation Routing options, you can have a wide range of com-
binations.
For example:
VCO -> SPLIT
VCF -> PAR
MOD -> 1/2
You have each VCO with its own lter and independent modulator.
LP BP HP PAR
NOR 24dB/oct
Low Pass
12dB/oct
Band Pass
24dB/oct
High Pass
12dB/oct
Low Pass
VCF2 is free
SPLIT
VCO1
24dB/oct
Low Pass
VCO2
12dB/oct
Low Pass
VCO1
12dB/oct
Band Pass
VCO2
12dB/oct
Low Pass
VCO1
24dB/oct
High Pass
VCO2
12dB/oct
High Pass
VCO1
12dB/oct
Low Pass
VCO2
12dB/oct
Low Pass
VCA
pure VCOs
free lters
24dB/oct
Low Pass
pure VCOs
free lters
12dB/oct
Band Pass
pure VCOs
free lters
24dB/oct
High Pass
pure VCOs
2x free lters
12dB/oct
Low Pass
HALF
Free resonant
Low Pass
and 12dB/oct
Low Pass
Free resonant
High Pass
and 12dB/oct
Low Pass
Free resonant
High Pass
and 12dB/oct
High Pass
Free resonant
Low Pass
and 12dB/oct
Low Pass
The LFO
Nyx V2 has a simple but effective LFO, which was designed mostly for pitch vi-
brato sounds.
LFO Controls:
1. RATE knob - sets the LFO cycle rate
2. DEPTH knob - sets the LFO amount
The Reverb
We have developed a new algorithm for the Reverb of the Nyx V2, to accompany drones so as to create
haunted and aetherial soundscapes. The rst three slider controls consist the modulation of the effect
and the last three are the actual reverb controls.
The Modulation of the Reverb, is a random voltage generator, which will
actually create a “movement” on the sound.
Modulation Controls:
1. WAVE slider - smooths the waveform of the modulation
2. RATE slider - sets the frequency of the modulation event
3. LEVEL slider - sets the amount of the modulation
Reverb Controls:
4. FEED slider - sets the decay of the reverb
5. SIZE slider - sets the room size
6. MIX slider - blends between completely dry to wet sound
Please note that overdriving the signal, especially when the FEED is high, will cause the effect to distort.
Also when setting the mix of the oscillators above 70% or applying too much resonance, self oscillation
can distort the signal.
The Amp
In order to control the Nyx V2 VCA, we use the Amp Modulator, which is described in the Modulator
section (p. 5). The Amp Modulator is functioning exactly the same as the others. The difference is that
instead of the LFO mode, we have a DRONE mode, which is exactly the same but named differently for
clarity, as when this is engaged the synthesizer produces sound without having to trigger it via MIDI or
Gate.
Drone Mode
There is another Drone Mode available through setting switches 3,4,5 to the ON position that enables
you to have pitch control over the Oscillators without the use of an external device. Now the GLIDE
sliders of each oscillator transforms to the Coarse Tuning, but the Octave switches and the MIDI note
messages are deactivated. You can still send all the other available MIDI messages.
9
The Patch Bay
The Nyx V2 has 30 patch points, offering endless routing and modulation possibilities.
The Patch Bay is consisted of 4 major parts:
GENERAL OUTPUTS
1. GATE : outputs the gate CV (0-6.5V pulse)
2. WHEEL : outputs the modulation wheel CV (0-5V)
3. MOD1 : outputs the Modulator 1 CV (0-5V)
4. MOD2 : outputs the Modulator 2 CV (0-5V)
5. CV : outputs the MIDI notes to CV (0-10V) over 10 octaves
6. LFO : Direct output of the LFO. When patching this, the effect on
the pitch of the oscillators will be cancelled. (+/- 3V)
7. OSC2 : outputs the selected wave of the OSC2 (+/- 5V)
8. MOD REV : outputs Reverb Modulation CV. Always at max level
(+/- 5V)
MIX
9-12. IN A, IN B, IN C, IN D : mixer inputs (+/- 10V max)
13. OUT: outputs the sum of IN A, IN B, IN C, IN D
LEVEL : sets the level of the mixer’s output (+/- 10V max)
NOISE
14. OUT : white noise (+/- 5V max)
LEVEL : sets the level of the White Noise
INPUTS
15. CV1 : OSC1 CV input 1V/oct (+/- 2% off to precision) (+/-10V)
16. CV2 : OSC2 CV input 1V/oct (+/- 2% off to precision) (+/-10V)
17. CV : OSC1 and OSC2 CV input 1V/oct (+/- 2% off to precision) (+/-10V)
18. GATE : expects a 0 to 5V pulse so as to handle as a Gate signal. (can accept from 3.3V up to 10V)
19. PW : pulse width control over the square wave of OSC1
20. LEVEL : controls the amplitude of both OSC1 and OSC2 (+/-5V)
21. LEVEL1 : controls the amplitude of OSC1 (+/-5V)
22. LEVEL2 : controls the amplitude of OSC2 (+/-5V)
23. CUT A : controls the Cutoff frequency of Filter1 (+/-5V)
24. CUT B : controls the Cutoff frequency of Filter2 (+/-5V)
25. CUT : controls the Cutoff frequency of both Filter1 and Filter2 (+/-5V)
26. RES : controls the amount of the resonance (+/-5V)
27. FALL1 : controls the fall rate of the MOD1(+/-5V)
28. FALL2 : controls the fall rate of the MOD2(+/-5V)
29. VCF1 IN : audio input on VCF1
30. VCF2 IN : audio input on VCF2
10
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