New releases last two weeks: All genres

Notes: Presenting the new AJHSynth Matrix VCF - this may well be the most versatile Eurorack VCF ever.

This amazing multimode filter and VCA offers sixteen different filter types, and two different resonance models on each, totalling an incredible thirty two assorted resonant filters to choose from. AJH Synth have also included manual and CV control of filter type selection, along with 16 LED's that give a clear visual indication of which filter type is currently selected.

The filter core circuitry is based on that of the rare and highly sought after Oberheim Matrix 12 synthesiser, and of course has an all analogue signal path. The Matrix 12 VCF originally offered fifteen filter types, however AJH Synth have expanded this to 16 with the addition of AP4, a full four pole all pass phaser mode.

AJH Synth have added a unique P-Vox resonance distortion and overdrive circuit that changes the character of the resonance completely, and can force all of the filter modes into self oscillation. This effectively doubles the filter variants and hugely broadens what is already a very impressive sound pallet.

Other features include an inbuilt VCA with Input and Output Level controls, a Peak level LED, CV control of resonance, and of course the legendary AJHSynth build quality.

The Matrix VCF in depth

After two years of development AJH Synth have finally released what they consider to be the most versatile Eurorack VCF & VCA ever. Like many other AJHSynth modules it uses the very best vintage analogue circuitry as the starting point for the design, and in this case, the filter was chosen from the rare and very desirable Oberheim Matrix 12 synthesiser. AJH Synth expanded this from the original fifteen filter compliment to sixteen distinct filter types by adding in a really useful four pole phaser!

So, behind the compact 14hp front panel lies sixteen distinct filter types, including all of the favourites: Low Pass filters with a choice of one, two, three or four poles, Band Pass filtering with two or four poles, High Pass filtering with one, two or three pole options, along with Notch filtering and four complex, combination filter types. Finally, a four stage phaser with two types of emphasis that can be forced into tuneful self-oscillation!

However, this is far from the end of the story. AJH Synth decided to use their design expertise to add in some crazy resonance distortion circuitry, that could be switched on from the front panel. This was inspired by the filter from the Soviet Polivoks synthesiser, but again the implementation used here is considerably changed, improved, and best of all this can be applied to all filter types! This completely changes the filter character when engaged, and it forces all of the filters into self-oscillation at higher resonance settings. Better still, the oscillation waveforms are more harmonically rich than the usual sine waves - everything from gloriously fat to screaming and angry! Best of all, this takes the number of different filters up to a massive thirty two variations!

AJH Synth put a lot of thought into the ergonomics and how to select the individual filter type. Filter type can be changed either with the front panel Mode knob, or by using a control voltage patched to the MODE CV input. The selected filter mode is displayed by the LED next to the filter in use. This is also very helpful when using a step sequencer to change filter mode as it gives a real time display of the filter chosen as you take the step CV voltage up or down, while setting up each individual step.

Lastly, AJH Synth have also included a VCA hard-wired to the output - simply patch an envelope or an LFO to the VCA input, connect a VCO to the audio input and you have a synth voice (with a choice from 32 different filters!) using only three modules!

Thirty two Eurorack VCF's and a VCA would most certainly take up a lot of rack space - AJH Synth have got all of this into 14hp and managed to have a really finger-friendly user interface, without it feeling cramped.


Sixteen distinct filter modes to choose from

Here's a list of the different filter modes that are available:
1 - Four Pole Band Pass
2 - Three Pole High Pass combined with One Pole Low Pass
3 - Three Pole All Pass combined with One Pole Low Pass
4 - Two Pole Notch combined with One Pole Low Pass
5 - Two Pole Low Pass
6 - Four Pole All Pass (Phaser)
7 - Four Pole Low Pass
8 - Two Pole Band Pass
9 - Two Pole High Pass combined with One Pole Low Pass
10 - Three Pole High Pass
11 - Three Pole All Pass
12 - Two Pole Notch
13 - One Pole Low Pass
14 - Two Pole High Pass
15 - Three Pole Low Pass
16 - One Pole High Pass

All of the above filter types can be further altered by switching in P-Vox mode, this doubles the list up to thirty two different filter variants!

P-VOX MODE

Transforming the resonant character of every filter type

This magical switch completely transforms the resonance of the filter core by overdriving it in a similar fashion to the filter from the Soviet Polivoks synthesiser, which was renowned for it's powerful, aggressive character.
In common with the Oberheim Matrix 12 VCF, some of the sixteen filter types will not normally go into self-oscillation, however when you switch on P-Vox mode all sixteen filter types can be forced into self-oscillation at higher resonance settings. But that isn't the only change, the self-oscillation waveform is not the usual sine waveform, it is a rather more interesting and harmonically rich waveform that varies according to the filter type chosen - generally Low Pass modes produce the nearest to regular sine waves, whereas other filter types can produce very much more complex waveforms as can be seen in the diagrams below. It does not require any audio input for this, it can be a stand alone oscillator. Most of the filter types will track 1V/Oct reasonably well over a three to five octave range, so it can be used as a VCO with a few interesting waveshapes!

Of course, P-Vox mode isn't just useful for self-oscillation, it adds lots of character to any audio signal as P-Vox resonance is switched in.

Module Width: 14hp
Module Depth: 29mm (Including power lead)
Current Usage: 56mA Positive, 36mA Negative

Notes: Not just another clone or continuation of the 808-esque, acid-style kicks of the Mutant Bassdrum - the Mutant BD9 seeks to explore uncharted bassdrum territory by having an integrated sub-oscillator for maximal auditory obliteration.

Parametric bassdrum synthesis offers creative control of the core sound

The primary analogue VCO offers classic 909-esque sinusoidal bassdrums, but can also be switched to generate a square wave bassdrum

The PITCH of the VCO spans several octaves, from about 30Hz to 240Hz, and can be modulated with voltage control

A novel PITCH DECAY circuit allows you to adjust the duration and AMOUNT of the pitch-modulation envelope applied to the bassdrum, from short blips to exaggerated tom-like sweeps

The AMPLITUDE DECAY allows adjustment of the length of the bassdrum, from short punchy kicks to massive booms. This parameter is voltage-controlled with a snappy CV response time, allowing you to modulate the duration of your kicks per step.

The CLICK generator is responsible for the attack intensity of the BD9. A fair amount of circuitry goes into creating this subtle punch at the beginning of the kick. The level of this effect is adjustable up to a fairly dramatic extremity.

The overall timbre of the BD9 varies with the DRIVE control from warm, analogue bassdrums at low settings to speaker-shattering overdriven sounds at high settings. Output levels are modular-level signals, unlike many classic line-level percussive devices.

Still not heavy enough? Try the sub-oscillator.

A square wave sub-oscillator derived from the primary oscillator's pitch can be mixed in (manually and with voltage control) to the BD9. The effect can be subtle deepness or extreme timbre changes.

A jumper on the back of the module allows you to select between the sub-osc being a raw square wave or having some of the high frequency components removed with a lowpass filter.

At high OUTPUT DRIVE and SUB LVL combinations, the sub-oscillator can be modulated with CV to saturate the BD9 output in evolving ways.

The SUB OCT can be set to 0, -1 or -2 octaves down from the primary oscillator. A drop of 0 means that you can mix an equal-pitch square wave with a sinusoidal primary wave.

Designed for the contemporary modular synthesiser

Plenty of eurorack-compatible control voltage inputs with bipolar attenuverters allow synthesis of dynamic percussion

A practical analogue trigger circuit allows activation of the BD9 from many signal sources (anything with a positive-going edge lasting 2ms or longer). Most electronic drum pads can also directly trigger the Mutant BD9.

An accent input accepts analogue voltage control (0 to 5V will fully modulate the volume from low to high)

13HP | 30mm deep
+50mA, -50mA

Notes: Intellijel have created a 1U version of the handy Atlantix Expander. It is exactly like the 3U version but arranged to fit in a 1U space. Comes with a cable for connecting to the Atlantix.

Notes: Part of Knobula's excellent polyphonic Eurorack range, the Monumatic is an eight-voice poly/monophonic synth module with 16 oscillator modes, covering everything from virtual analogue to cutting-edge tone generation algorithms.

Supplier's Notes:
Monumatic is a fully polyphonic 8-voice synthesiser and a monophonic synthesiser packed into a compact 12HP module.

It features16 selectable oscillator modes to provide a diverse range of both classic and futuristic tone generation using exclusively virtual analog algorithms. These include; Roland super-saw, Polymoog vox humana, Casio phase distortion, Solina string synth, percussive drawbar organs , "noisy cassette" strings, pulse width modulation and some gnarly asymmetric sync oscillators, all modelled without samples and each one of these customisable using the Detune control and each providing the foundation for further signal processing though the filter and effects sections.

6 powerful filter types are provided, including a vocal vowel filter, a 24db/oct Butterworth low pass filter, a dual peak notch filter and a phase shifter, each of which features an overdrive setting.

Like its sibling module Poly Cinematic, Monumatic is designed to be simple to use yet versatile, offering minimal controls to access a wealth of sounds, avoiding the need to scroll through 1000s of complex presets.

Monumatic supports full analog control of every parameter, with two instantly assignable CV inputs, as well as dedicated CV inputs for Gate, V/Oct and Filter cutoff, with additional digital control using comprehensive Midi CC and MPE implementation. An altogether unparalleled potential for expansion and integration into the eurorack universe.

As well as full midi capability, the 8 built-in chord presets can be custom programmed to provide polyphonic stabs and pads and using a single CV/Gate input, arpeggios can be layered polyphonically or "plucked" using long release times. The mono/poly function allows the Monumatic to switch between a fully capable poly synth or a mono synth at the touch of a button.

In polyphonic mode Monumatic introduces an advanced micro-tuning system to modular synthesis, it can replicate the organic drift of vintage analogue oscillators or it can apply realtime tuning temperaments to enhance harmonic authenticity using 'just' intonation, this parameter can even be assigned to CV control.

Notes: The Jumbler music synthesiser module is a six by six channel analogue signal combiner and distributor for the New Universal Synthesizer System or any Eurorack modular synthesiser. Jumble is one of the N.U.S.S. concepts where the routings of a patch could be re-configured, or jumbled, instantly via voltage control to produce variations on a theme.

Jumbler gives you powerful two-parameter access to the rearrangement of both origins and destinations for up to six modular signals. One to six inputs are routed to one to six outputs, in an order determined by the Rotate control, and combination determined by the Radiate control. Unlike a simple switch module, Jumbler's analogue VCA-based design is specially geared for smooth transitions and hybrid signals.

Jumbler is a great module for hybrid control voltage mashing, complex waveform mixing, on-the-fly effects re-routing, gate and clock re-combinations and more. Some folks have said it is like patching a stack of 6 RxMx circuits.

Width: 10hp
Max Depth (incl. power cable): 43 mm

Power:
178mA@ +12V
92mA @ -12V

Notes: Really nice approach to sequencing from Omni-Tone. The Melodi generates 'semi-random' patterns based on tunable parameters and probabilities. Dial in combinations of scales, pitch range, tempos and so on to create unique melodies.

Supplier's Notes:
Melodi generates sequences based on the mood you set so you can create the sound you're searching for- it can be tweaked to create anything from a powerful bassline to a sparkly melody.

Ships with version 2 of firmware

Improvements: Skip, tie, length are now LIVE knobs. Added a ping-pong trend line and a blues scale.

GENERATE

1. NEW - will prompt Melodi to generate a new sequence.
2. TRIGGER IN - accepts a trigger to prompt Melodi to generate a new sequence.

CYCLE

1. ON/OFF - determines if the sequence will loop or require retriggering.
2. TRIGGER - button and jack trigger the sequence to restart at the beginning.

TUNE

* While adjusting tunable parameters, the light bar will reflect the current selection. For continuous parameters the light bar shows amount from 0-100%, for quantized parameters the light bar shows steps.
1. SKIP (continuous) - sets the probability that a note will be skipped in a sequence.
2. PLUCK (continuous) - sets the length of the gate, from short plucks to gliding between notes (portamento).
3. TIE (continuous)- sets the probability that a note gets tied to the next (effectively making the note last two clock cycles).
4. TREND (continuous) - sets whether the sequence trends upwards or downwards in pitch.
5. SCALE (quantized) - select the quantization of the notes used in the sequence. Choose from perfect notes, pentatonic scale, diatonic scale, chromatic scale and completely unquantized.
6. RANGE (continuous) - sets the range of notes from 1 to 4 octaves (unquantized)
7. LENGTH (quantized) - select the number of notes to play in a sequence (from 1-16, or infinitely generating at the max position).
8. SPEED (continuous) - sets the tempo of the internal clock, between 20 and 2000 BPM.

OUT
1. GATE - outputs the gate of the notes in the sequence.
2. PITCH - outputs the pitch (in V/OCT) of the sequence.

CLOCK

1. SELECT - Melodi will generate internal clock signal if select switch is up, and will use external clock signal when down
2. IN - connect external clock signal
3. OUT - output clock signal

Technical specs:

- Module Size: 3U X 8HP X 25 Mm Deep.
- Current Draw: 85mA @ 12V, 10mA @ -12V.

What's in the box:

- Ready to use Assembled Module
- Mounting Screws
- Power Cable
- User Manual

Notes: Analogue discrete Synthvoice with two VCOs, three SUB-VCOs, Wavefolder, Noise, Ring Modulator, two loopable ADRS, two LFOs/VCOs, MIXER, 24db Lowpass VCF, VCAOur new Eurorack flagship hits stores this summer. Very compact (pre-patched) discrete synth voice module with excellent analogue technology for endless soundscapes at a reasonable price.

Two discrete VCOs with highly stable tracking

Three analogue Suboscillators (3/4-1/2-1/4 with SQUARE, SAW, TRI) + Gravity Mix -Sync

Wavefolder (VCO 1 TRI WAVE)

White Noise

XOR Ringmodulator

Discrete VCA

24dB LP VCF with overdrive

Dual analogue LFO (one also usable as VCO) with incredible range and keytracking -Two superfast and punchy analog ADSR sections with LOOP function and four TRG outputs (End of ATT, End of DEC)

Mixer section with Master level -Glide presets and huge Patchfield to communicate with other Eurorack Modules.

Screwed metal shaft potentiometer

Rackspace: 36TE
Depth: 25mm

Notes: This versatile dual-function Eurorack module offers both a Low Pass Gate (LPG) and a Voltage-Controlled Amplifier (VCA), inspired by two iconic designs in synthesiser history.

Low Pass Gate (LPG)

The LPG is modeled after the classic Buchla design, delivering a rich, organic sound that blends amplitude control with low-pass filtering. Ideal for producing natural-sounding dynamics, the LPG responds to control voltages to create plucky, percussive tones and smooth, woody textures. Its distinctive vactrol-based architecture provides a warm and unique character, adding depth and nuance to your patches.

Voltage-Controlled Amplifier (VCA)

The VCA draws its inspiration from the legendary Minimoog, ensuring a clean, dynamic, and responsive performance. Known for its iconic smoothness and headroom, this design is perfect for traditional amplitude shaping, allowing precise control over audio signals with minimal distortion. The VCA section excels in both subtle modulation and aggressive signal sculpting, making it a versatile choice for any patch.

Power consumption: 30mA at +12V and 47mA at -12V

Depth: 27mm

6 HP

Notes: Clock generation meets waveform manipulation in this analogue harmonic oscillator. Combine with the Tobinski sequencer and/or interpolating scanner modules for the best creative results.

Supplier's Notes:
The Harmonic Timing Generator is a versatile Eurorack module that combines advanced clock generation with harmonic waveform manipulation. Combined with the Tobinski Sequencer, the module is a great tool for rhythmic and sonic creativity in the modular system.

As a reference clock generator, the Harmonic Timing Generator produces a base frequency with analogue multipliers (x1 to x8) to generate complex timing signals. Three selectors provide manual or voltage-controlled frequency switching, offering flexibility for intricate sequencing patterns. An LFO mode enables slower clocking rates, ideal for driving sequencers or generating modulation sources.

When used with the Interpolating Scanner, the sawtooth outputs of the Harmonic Timing Generator are transformed into sine waves. This allows the module to function as a harmonic oscillator at audio rates or as a versatile modulation source in LFO mode. Its dual functionality ensures that it can adapt to a wide range of patching needs, from rhythm generation to rich harmonic exploration.

The Harmonic Timing Generator is a versatile and creative tool, offering rhythmic and harmonic possibilities that complement any modular synthesizer setup. Its integration with other Tobinski modules ensures a cohesive and expansive sonic palette.

Power consumption: 235mA at +12V and 176mA at -12V and 20mA at +5V

Depth: 27mm

18 HP

Notes: Tobinski 8-Channel interpolating scanner with integrated VCAs

This Eurorack module combines an 8-channel interpolating scanner with a powerful array of 8 independent VCAs, providing unparalleled flexibility for dynamic audio and CV routing for creative sound design.

Key Features:

1. Interpolating Scanner

8-Channel Interpolation: Smoothly blend between up to 8 stages with high precision, using either bipolar CV or manual control.

Scan Stage & Width Control: Dedicated controls for selecting active stages and defining the range of the interpolation window.

Multiple Outputs: Individual outputs for odd stages, even stages, and a combined all stages output provide versatile routing options.

2. Integrated VCAs

8 VCAs with CV Control: Each VCA has its own dedicated control voltage input, allowing for intricate amplitude shaping.

Mix Outputs: Summed outputs for odd channels, even channels, and all channels, perfect for mixing duties or creating complex stereo effects.

Subtractive Mixing: Individual VCA outputs are excluded from the mix outputs when patched, allowing for flexible routing and advanced signal processing.
3. Parallel and Flexible Signal Flow

Parallel Input Routing: The 8 inputs feed both the scanner and VCAs simultaneously, making it easy to use the module in multiple roles at once.

Switchable Sliders: 8 high-quality sliders can control input levels to the scanner, the VCAs, or both, adapting to your workflow needs.

Creative Patching Examples:

Stereo Mixer:
Use 2 scanner channels and route their outputs through the odd and even mix outputs to create a dynamic stereo mix.

4-Channel Mixer:
Combine 4 inputs through the VCA sections and use the mix outputs to create a versatile sub-mixer for blending multiple signals.

VCA Control:

Independently use 2 or more VCAs for precise amplitude modulation of separate signals.
All the above options can be implemented simultaneously, making this module an exceptionally powerful tool for complex patches.

Expandable with Tobinski Harmonic Timing Generator (HTG):

This module seamlessly integrates with the Tobinski Harmonic Timing Generator (HTG) via an internal ribbon cable that goes to the switched (normalled) connections of the input jack sockets. The scanner inputs automatically link to the HTG outputs via sine shaping circuitry, enabling the two modules to function as a sinewave harmonic oscillator. This pairing unlocks harmonic interpolation and complex timbre creation, expanding your sonic palette.

Connections:

Inputs:
8 for audio or CV

Outputs:
8 individual VCA outputs

Mix outputs for odd, even, and all channels
Scanner outputs for odd stages, even stages, and all stages

Control Inputs:
Bipolar CV for scan stage and scan width

Dedicated CV inputs for each VCA
Sliders: 8, switchable between scanner, VCAs, or both

Power consumption: 205mA at +12V and 190mA at -12V

Depth: 27mm

18 HP

Notes: 
2^LFO
Dual Analog VC-LFO
2^LFO is a dual analog VC-LFO Eurorack module, each LFO unit consists of two outputs of square and triangle that can be used simultaneously.

From LFO to Audio-Rate
Three variable rates range from super slow modulation of 20 seconds to super fast audio-rate of 700hz.
Control the speed
CV input for external control of the modulation rate.
No light bleed
Custom made light bleed blocker to prevent indicator light to bleed to other modules.
Reverse polarity protection
The module have proper reverse current and over current protection in its power input stage to protect the module in case it was connected the wrong way or connected to a faulty power supply.
Dimensions
Width
: 4HP
Depth
: 10mm
Current Draw
+12V
: 10mA
-12V
: 10mA

Notes: 2^VCA is a dual vca module in 1u Intellijel format.
Both of the VCA's are normlised so it can be used a stereo VCA, as a dual mono VCA , mono to stereo VCA and many more combinations.

Technical Specifications
1u Intellijel format
Noise filtering and resettable fuses on the module's power input.
Reverse current protection.
Dimensions
Width
: 12HP
Depth
: 20mm
Current Draw
+12V
: 10mA
-12V
: 10mA

Notes: The LedPressor is a full stereo Diode-based compressor module.
Its unique core adds character and color to any signal passed through it.
The LedPressor can be used as a normal compressor with low input levels, but as the input volume increases and the "nuke" LED lights up, it enters a new territory that combines compressor and overdrive, creating a dynamic overdrive effect.

Get it pumping with the Side Chain
The module features an external sidechain input that accepts audio and CV signals. Only the sidechain signal passes through a high pass filter, which gives the user greater control over the sound shape. The audio signal itself is not affected by the filter.
Parallel compression
The module also includes a mix knob that can be controlled with a dedicated mix CV input, allowing for greater flexibility when blending dry and wet signals. Additionally, it features a momentary bypass button to easily adjust the levels of dry and wet signals.
Feed-Back Or Feed-Forward - it's your choice
The module can be configured with a feed-back or feed-forward topologies with a jumper in the back.
Reverse polarity protection
The module have proper reverse current and over current protection in its power input stage to protect the module in case it was connected the wrong way or connected to a faulty power supply.
Dimensions
Width
: 12HP
Depth
: 34mm
Current Draw
+12V
: 20mA
-12V
: 15mA

Notes: 
Q^Mix
4 channels CV/Audio polarising mixer
Q^Mix is a four-channel CV and audio mixer designed to take simple signals and combine them into something altogether new.
The four DC-coupled inputs feature a switch that selects between linear attenuation or bi-polar attenuversion.
Q^Mix can be used to sum simple signals to create much more complex results.
perfect for use as a final volume control when used as an audio mixer.

Technical Specifications
All inputs are DC-coupled.
Four-channel audio and CV mixer.
Logarithmic attenuation on the output stage.
Input impedance: 100k for all inputs.
Noise filtering and resettable fuses on the module's power input.
Reverse current protection.
Dimensions
Width
: 6HP
Depth
: 10mm
Current Draw
+12V
: 5mA
-12V
: 5mA

Notes: Reduxer is a stereo sample reducer effect module.

Depends on it's signal, It can produce dynamic range of sounds from knurly bitcrushing to formant/vowel style effects.

Extra resolution

Custom made Redux potentiometer with 300 degrees rotation for extra crashing resolution.

Double the power

Two proprietary sample reduction circuits with extra offset control on channel 2 via the "Spread", lets you create motion in the streo field for wider effect.

Stereo operation

Inputs are normelized - supporting mono to stereo configuration.

Reduction under control

Redux CV input with attenuator for external control of the bit reduction rate.

Reverse polarity protection

The module have proper reverse current and over current protection in its power input stage to protect the module in case it was connected the wrong way or connected to a faulty power supply.

Dimensions

Width: 8HP
Depth: 20mm

Current draw

+12V: 25mA
-12V: 25mA

Notes: S&M is a very useful utility module in 1u Intellijel format combining unity mixer and a precision active buffer.

CV and Audio Mixer
Audio grade dc-coupled unity mixer for mixing CV or Audio signals
Active Buffer/Splitter
Precision active buffer/splitter for splitting signals along your system without any signal loss (highly recommended for splitting Pitch CV).
Reverse polarity protection
The module have proper reverse current and over current protection in its power input stage to protect the module in case it was connected the wrong way or connected to a faulty power supply.
Dimensions
Width
: 12HP
Depth
: 20mm
Current Draw
+12V
: 10mA
-12V
: 10mA