V-Track Active Multi Silver
V-Track Active Multi Silver
V-Track Active Multi Silver

 

  • Type/ Utility
  • Width/ 4HP
  • Power/ –
  • Depth/ –

 

This is a precision active buffer and multiple. This module has outstanding performance: it features very high input impedance, very low output impedance and an offset voltage of 1mV.

Not all active multi’s are born equal, some designs do not fully solve impedance mismatch and tracking problems ..or they apply offset voltages to the output and in rare cases can cause more problems than they solve!

AJH Synth have added a very useful (and unique) feature to cure tracking problems: four of the five outputs can be adjusted up or down by +/-5% from the front panel, so that VCO’s and VCF’s that don’t track 1V/Oct exactly can be easily compensated to track correctly without having to re-calibrate the VCO or VCF themselves.


 
 
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129,00  Add to cart
V-Track Active Multi Black
V-Track Active Multi Black
V-Track Active Multi Black

 

  • Type/ Utility
  • Width/ 4HP
  • Power/ –
  • Depth/ –

 

This is a precision active buffer and multiple. This module has outstanding performance: it features very high input impedance, very low output impedance and an offset voltage of 1mV.

Not all active multi’s are born equal, some designs do not fully solve impedance mismatch and tracking problems ..or they apply offset voltages to the output and in rare cases can cause more problems than they solve!

AJH Synth have added a very useful (and unique) feature to cure tracking problems: four of the five outputs can be adjusted up or down by +/-5% from the front panel, so that VCO’s and VCF’s that don’t track 1V/Oct exactly can be easily compensated to track correctly without having to re-calibrate the VCO or VCF themselves.
 
 
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129,00  Add to cart
MiniMod VCO Silver
MiniMod VCO Silver
MiniMod VCO Silver

 

  • Type/ Oscillator
  • Width/ 14HP
  • Power/ +55mA/-40mA
  • Depth/ 38mm

 

The discrete transistor core of this Voltage Controlled Oscillator is an exact emulation of the original and now very rare R A Moog Model D Oscillator from 45 years ago, and the resulting waveforms and sounds are exactly as the original, as big, fat and sweet as ever!

It features front panel switchable octave selection and four independent waveform outputs including the famous “Sharktooth” wave, Sawtooth wave, Square wave and Triangle wave.

The Square wave output now has fully adjustable Pulse Width Modulation, with manual and CV control rather than the more restricting selection of two static fixed pulse widths or square wave of the original design.

We have added extra features too, including exponential and linear modulation inputs and two different types of oscillator sync which help to make this a very versatile Eurorack VCO in its own right.
 
 
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MiniMod VCO Black
MiniMod VCO Black
MiniMod VCO Black

 

  • Type/ Oscillator
  • Width/ 14HP
  • Power/ +55mA/-40mA
  • Depth/ 38mm

 

The discrete transistor core of this Voltage Controlled Oscillator is an exact emulation of the original and now very rare R A Moog Model D Oscillator from 45 years ago, and the resulting waveforms and sounds are exactly as the original, as big, fat and sweet as ever!

It features front panel switchable octave selection and four independent waveform outputs including the famous “Sharktooth” wave, Sawtooth wave, Square wave and Triangle wave.

The Square wave output now has fully adjustable Pulse Width Modulation, with manual and CV control rather than the more restricting selection of two static fixed pulse widths or square wave of the original design.

We have added extra features too, including exponential and linear modulation inputs and two different types of oscillator sync which help to make this a very versatile Eurorack VCO in its own right.
 
 
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365,00  Add to cart
MiniMod VCF Silver
MiniMod VCF Silver
MiniMod VCF Silver

 

  • Type/ Filter
  • Width/ 14HP
  • Power/ +45mA/-30mA
  • Depth/ 26mm

 

The stuff of legends, the Moog transistor ladder filter changed the face of the musical landscape forever. The MiniMod VCF is a faithful replica of the 24db/octave low pass filter used in the early Model D synthesiser.

There is a three channel input mixer and a nice large filter cutoff control, along with “1/3” and “2/3” CV inputs to emulate the action of the original VCF keyboard switches, apply 1v/oct to either of these inputs and the VCF keyboard tracking will be the same as the original with Keyboard 1 (1/3) or 2 (2/3) engaged, or use the 1v/oct input to emulate both switches selected. There is a variable Exponential CV input which is about 30% more sensitive than the 1v/oct input, this allows some nice over modulation effects.

We have added Voltage Controlled Resonance (Emphasis) in addition to manual Emphasis control. This uses a vactrol as the control element. The fast vactrol used allows modulation speeds up into the audio range. The filter will of course self resonate and act as a sine wave oscillator too.

There is also an overdrive facility which can be selected with an onboard jumper. This allows the input to the filter core to be substantially overdriven, great for adding a bit of extra dirt to the sound.
 
 
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275,00  Add to cart
MiniMod VCF Black
MiniMod VCF Black
MiniMod VCF Black

 

  • Type/ Filter
  • Width/ 14HP
  • Power/ +45mA/-30mA
  • Depth/ 26mm

 

The stuff of legends, the Moog transistor ladder filter changed the face of the musical landscape forever. The MiniMod VCF is a faithful replica of the 24db/octave low pass filter used in the early Model D synthesiser.

There is a three channel input mixer and a nice large filter cutoff control, along with “1/3” and “2/3” CV inputs to emulate the action of the original VCF keyboard switches, apply 1v/oct to either of these inputs and the VCF keyboard tracking will be the same as the original with Keyboard 1 (1/3) or 2 (2/3) engaged, or use the 1v/oct input to emulate both switches selected. There is a variable Exponential CV input which is about 30% more sensitive than the 1v/oct input, this allows some nice over modulation effects.

We have added Voltage Controlled Resonance (Emphasis) in addition to manual Emphasis control. This uses a vactrol as the control element. The fast vactrol used allows modulation speeds up into the audio range. The filter will of course self resonate and act as a sine wave oscillator too.

There is also an overdrive facility which can be selected with an onboard jumper. This allows the input to the filter core to be substantially overdriven, great for adding a bit of extra dirt to the sound.
 
 
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MiniMod VCA Silver
MiniMod VCA Silver
MiniMod VCA Silver

 

  • Type/ VCA
  • Width/ 10HP
  • Power/ +40mA/-22mA
  • Depth/ 26mm

 

The MiniMod Discrete Cascaded VCA is a 10hp wide Eurorack format module. It features two fully discrete transistor VCA cores which are hardwired in series.

There are two audio inputs each with their own level controls along with two CV inputs which control the gain of VCA 1 and a Master CV input and level control which controls the gain of VCA 2. There is also an offset control so that a preset gain can be added to VCA 1. Internally it operates at the same voltage and signal levels as the early Model D voltage controlled amplifier and the output of VCA 1 is hardwired to the input of VCA 2.

A high gain (overdrive) mode can be selected for VCA 1 with an onboard jumper, this overdrives it into soft clipping and in this mode the second VCA can be used in a similar way to the Master volume on a guitar amplifier so that variable levels of distortion (or “grit”) can be added to the sound.
 
 
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MiniMod VCA Black
MiniMod VCA Black
MiniMod VCA Black

 

  • Type/ VCA
  • Width/ 10HP
  • Power/ +40mA/-22mA
  • Depth/ 26mm

 

The MiniMod Discrete Cascaded VCA is a 10hp wide Eurorack format module. It features two fully discrete transistor VCA cores which are hardwired in series.

There are two audio inputs each with their own level controls along with two CV inputs which control the gain of VCA 1 and a Master CV input and level control which controls the gain of VCA 2. There is also an offset control so that a preset gain can be added to VCA 1. Internally it operates at the same voltage and signal levels as the early Model D voltage controlled amplifier and the output of VCA 1 is hardwired to the input of VCA 2.

A high gain (overdrive) mode can be selected for VCA 1 with an onboard jumper, this overdrives it into soft clipping and in this mode the second VCA can be used in a similar way to the Master volume on a guitar amplifier so that variable levels of distortion (or “grit”) can be added to the sound.
 
 
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225,00  Add to cart
MiniMod Sonic XV Silver
MiniMod Sonic XV Silver
MiniMod Sonic XV Silver

 

  • Type/ Filter
  • Width/ 14HP
  • Power/ +70mA/-55mA
  • Depth/ 24mm

 

The Sonic XV Eurorack module is a four pole Diode Ladder Filter, featuring the circuitry and sound of the Musonics Sonic V synthesiser, which has a quite different character from transistor ladder filters. In addition to the regular 24dB Low Pass output we have added a 6dB Low Pass output and a Bandpass output, along with full voltage control of the resonance.

Two waveshapers have been added to hugely increase the sonic versatility of this module. There is a breakpoint based wavefolder on the input, with drive level that can be manually adjusted or voltage contolled. A bias control switch allows extra waveshape variations.

A second waveshaper is connected to the resonance circuit, which adds distortion and waveshaping to the resonance loop signal, again the drive can be adjusted manually or under full voltage control. A wet/dry mix control allows resonance waveshaping to be added from 0 to 100%.

These additions take the diode ladder fllter core way beyond it’s original function, it becomes a “filter” module that can add harmonics and shape waveforms rather than simply filtering them. With four independant CV inputs very complex filtering and waveshaping sounds become possible.
 
 
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345,00  Add to cart
MiniMod Sonic XV Black
MiniMod Sonic XV Black
MiniMod Sonic XV Black

 

  • Type/ Filter
  • Width/ 14HP
  • Power/ +70mA/-55mA
  • Depth/ 24mm

 

The Sonic XV Eurorack module is a four pole Diode Ladder Filter, featuring the circuitry and sound of the Musonics Sonic V synthesiser, which has a quite different character from transistor ladder filters. In addition to the regular 24dB Low Pass output we have added a 6dB Low Pass output and a Bandpass output, along with full voltage control of the resonance.

Two waveshapers have been added to hugely increase the sonic versatility of this module. There is a breakpoint based wavefolder on the input, with drive level that can be manually adjusted or voltage contolled. A bias control switch allows extra waveshape variations.

A second waveshaper is connected to the resonance circuit, which adds distortion and waveshaping to the resonance loop signal, again the drive can be adjusted manually or under full voltage control. A wet/dry mix control allows resonance waveshaping to be added from 0 to 100%.

These additions take the diode ladder fllter core way beyond it’s original function, it becomes a “filter” module that can add harmonics and shape waveforms rather than simply filtering them. With four independant CV inputs very complex filtering and waveshaping sounds become possible.
 
 
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365,00  Add to cart
MiniMod Ring SM Silver
MiniMod Ring SM Silver
MiniMod Ring SM Silver

 

  • Type/ Effect
  • Width/ 14HP
  • Power/ +55mA/-50mA
  • Depth/ 34mm

 

A very unique and warm sounding ring modulator with three inputs, X, Y & Z It is a vintage design based entirely on a discrete transistor core, and includes an extra, resonant Z modulator input. It also has a Frequency Doubling switch, from a single triangle or sine wave input an octave +1 output is generated

Two independent Sub Bass generators with very fast tracking, creating -1 Octave and -2 Octaves from the X input. These are not simple square wave subs, they generate specially shaped waveforms and are useful up to 1kHz – they have a much lower harmonic content than square wave subs, designed to have more power and sit much better in a mix.

A five input DC coupled mixer based on the discrete transistor CP3 modular design dating back to 1974. The Outputs of the ring modulator, X and Y inputs and Sub Bass outputs are routed to the mixer by default – plugging a patch cable into any of the mixer inputs defeats this normalising and allows it to be used as a regular 5 channel mixer for both audio and control voltages.

A clipping / distortion module – input 5 of the mixer is considerably “hotter” than the other four mixer channels and will clip the signal as soon as it hits threshold level. If a DC bias voltage is added the signal is shifted and this allows positive or negative asymmetric clipping of the waveform.
 
 
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345,00  Add to cart
MiniMod Ring SM Black
MiniMod Ring SM Black
MiniMod Ring SM Black

 

  • Type/ Effect
  • Width/ 14HP
  • Power/ +55mA/-50mA
  • Depth/ 34mm

 

A very unique and warm sounding ring modulator with three inputs, X, Y & Z It is a vintage design based entirely on a discrete transistor core, and includes an extra, resonant Z modulator input. It also has a Frequency Doubling switch, from a single triangle or sine wave input an octave +1 output is generated

Two independent Sub Bass generators with very fast tracking, creating -1 Octave and -2 Octaves from the X input. These are not simple square wave subs, they generate specially shaped waveforms and are useful up to 1kHz – they have a much lower harmonic content than square wave subs, designed to have more power and sit much better in a mix.

A five input DC coupled mixer based on the discrete transistor CP3 modular design dating back to 1974. The Outputs of the ring modulator, X and Y inputs and Sub Bass outputs are routed to the mixer by default – plugging a patch cable into any of the mixer inputs defeats this normalising and allows it to be used as a regular 5 channel mixer for both audio and control voltages.

A clipping / distortion module – input 5 of the mixer is considerably “hotter” than the other four mixer channels and will clip the signal as soon as it hits threshold level. If a DC bias voltage is added the signal is shifted and this allows positive or negative asymmetric clipping of the waveform.
 
 
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365,00  Add to cart
MiniMod Glide + Noise Silver
MiniMod Glide + Noise Silver
MiniMod Glide + Noise Silver

 

  • Type/ Noise
  • Width/ 6HP
  • Power/ +35mA/-35mA
  • Depth/ 54mm

 

There is a lot of power and funtion contained within this deceptively small 6hp module. It features both the Glide and the Noise generator circuitry from the vintage Model D synthesiser.

The MiniMod glide uses a discrete dual fet circuit which includes a hold function that can gate the glide effect. Glide is only active when the Hold CV input is high, so if the hold input is connected to the gate output of a Midi/CV convertor then the glide will be active only while the key is actually depressed, emulating the exact behaviour of the original Model D synthesiser.

We have also increased the versatility of the module by adding Glide Up only and Glide Down only modes in addition to the standard Glide Up & Down mode of the original circuit.

The Noise Generator is completely separate from the Glide circuitry. There are three outputs offering White Noise, Pink Noise and Red Noise. The noise source itself is all analogue and uses a specially selected transistor in avalanche mode which is amplified and filtered by discrete transistor based circuitry.
 
 
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219,00  Add to cart
MiniMod Glide + Noise Black
MiniMod Glide + Noise Black
MiniMod Glide + Noise Black

 

  • Type/ Noise
  • Width/ 6HP
  • Power/ +35mA/-35mA
  • Depth/ 54mm

 

There is a lot of power and funtion contained within this deceptively small 6hp module. It features both the Glide and the Noise generator circuitry from the vintage Model D synthesiser.

The MiniMod glide uses a discrete dual fet circuit which includes a hold function that can gate the glide effect. Glide is only active when the Hold CV input is high, so if the hold input is connected to the gate output of a Midi/CV convertor then the glide will be active only while the key is actually depressed, emulating the exact behaviour of the original Model D synthesiser.

We have also increased the versatility of the module by adding Glide Up only and Glide Down only modes in addition to the standard Glide Up & Down mode of the original circuit.

The Noise Generator is completely separate from the Glide circuitry. There are three outputs offering White Noise, Pink Noise and Red Noise. The noise source itself is all analogue and uses a specially selected transistor in avalanche mode which is amplified and filtered by discrete transistor based circuitry.
 
 
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239,00  Add to cart
MiniMod Gain Switch Expander and Multiple Silver
MiniMod Gain Switch Expander and Multiple Silver
MiniMod Gain Switch Expander and Multiple Silver

 

  • Type/ Expander
  • Width/ 2HP
  • Power/ Passive
  • Depth/ 28mm

 

AJH Synth have had quite a few customers asking if we can make the gain jumpers on the MiniMod VCF and VCA modules accessible from the front panel, so this 2HP module aims to address this.

The Gain Switch Multi has two switches which connect to the gain jumpers on the VCA and VCF. Switch “up” is the same as having the gain jumper in place, switch “down” is the same as removing the jumper, and gives higher gain.

Using these switches gives a similar effect to the old “headphone out to external input” trick on the original Model D but with a much wider overdrive range, particularly from the VCA.

As an added bonus, AJH Synth have also included a six way passive multi.
 
 
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95,00  Add to cart
MiniMod Gain Switch Expander and Multiple Black
MiniMod Gain Switch Expander and Multiple Black
MiniMod Gain Switch Expander and Multiple Black

 

  • Type/ Expander
  • Width/ 2HP
  • Power/ Passive
  • Depth/ 28mm

 

AJH Synth have had quite a few customers asking if we can make the gain jumpers on the MiniMod VCF and VCA modules accessible from the front panel, so this 2HP module aims to address this.

The Gain Switch Multi has two switches which connect to the gain jumpers on the VCA and VCF. Switch “up” is the same as having the gain jumper in place, switch “down” is the same as removing the jumper, and gives higher gain.

Using these switches gives a similar effect to the old “headphone out to external input” trick on the original Model D but with a much wider overdrive range, particularly from the VCA.

As an added bonus, AJH Synth have also included a six way passive multi.
 
 
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95,00  Add to cart