The Dannysound Dynamics is a compressor / expander originally designed to process drums but like most processing devices, it can be used for a wide variety of applications.

The module comprises of:
• Compressor / Expander
• Sub Bass Enhancer
• 3 Band Inductor-based EQ
• Harmonic Exciter

The compressor / expander section uses a discrete transistor-based circuit that allows for soft clipping when overdriven. The envelope detector is known as a feedforward type of circuit; taking its input from the signal before it goes to the compressor rather than after. This type of circuit is known for having fast attack times. The Sub Bass enhancer has its own compression circuit that "ducks" the initial transient. This allows the sub bass to be increased without distortion on the transient peaks increasing the overall level. There is a MIX control to allow the unprocessed signal to be mixed back in with the processed signal. The 3 band EQ is an inductor based LCR design. After trying out various EQ topologies this was the design that sounded the nicest. When overdriven it gives a nice "bite" to the sound and it has a certain characterful charm that’s hard to put into words. The controls have a response that are subtle to begin with and get more pronounced as the controls are increased. The Harmonic Exciter adds a little distortion to the high frequencies which bring out the sparkle of cymbals or the snap snare drums. The operating bandwidth can be switched between Low (snare drum snap) or High (Cymbals sparkle). There are inputs for side chaining and control with an external envelope as well as an envelope out to make the envelope detector output available to drive other modules. It also features separate inputs and outputs for the Compressor / Expander and EQ sections, so they could be used as 2 separate modules.

Check out this videos on Youtube!
https://youtu.be/bxnb8cGDAzU
https://youtu.be/6Gg2GoPSGBQ
https://youtu.be/U3XZcho12ZI

Features
• Compressor / Expander
• Sub Bass Enhancer
• 3 Band Inductor-based EQ
• Harmonic Exciter
• Envelope In/Out
• Sidechain Input
• Separate In/Out for Comp/Exp and EQ sections

Power 85mA @ +12V; 61mA @ -12V
Width 12 HP
Depth 50mm

This is a Do-It-Yourself kit, not an assembled module. The kit includes all parts to build the module. Building instructions can be found here.
DIY level: Advanced.

The Dannysound VU Meters is designed to be used with 2 x Dynamics modules. The modules connect internally via 2x3 pin ribbon cables.  The meters provide a visual representation of various signals within the Dynamics modules making settings easier.

Controls For Each Channel:
3 position toggle switch:
1. C/E OUT – Monitor compressor/expander output.
2. INPUT – Monitor Dynamics input level or external input if it’s used.
3. C/E AMT – Monitor Dynamics compression/expansion amount.

3 position toggle switch:
1. HI SENS – High sensitivity setting, best for monitoring the C/E OUT signal of percussive sounds and drums etc.
2. OFF – If you want to turn meters off. Note that this stops the needles moving but the backlights will stay on.
3. LO SENS – Low sensitivity setting, best for monitoring the C/E AMT signal or anything that overloads the HI SENS setting.

Check out this videos on Youtube!
https://youtu.be/bxnb8cGDAzU
https://youtu.be/6Gg2GoPSGBQ
https://youtu.be/U3XZcho12ZI

Features
• External input sockets for monitoring external sources
• Switch to select high or low meter sensitivity or off if the clicking needles get annoying!
• Monitoring of the compression/expansion amount
• Monitoring of the unprocessed input level
• Monitoring of the compressor/expander output level

Power 0.03mA @ +12V; 83mA @ -12V; 3mA @ +5V
Width 8 HP
Depth 51mm

This is a Do-It-Yourself kit, not an assembled module. The kit includes all parts to build the module. Building instructions can be found here.
DIY level: Advanced.

The Cali oscillator is a new and improved version of the classic Buchla 258 wave shaping oscillator with an additional pulse width modulated output. The oscillator features the classic Sine to Square and Sine to Saw wave shaping with dedicated CV control. The Cali Oscillator differs from previous versions of the 258 in that it has a 3-way position switch rather than 2-way. This new middle position features a bonus waveform that will shape from a pulse into a kind of triangular trapezoid shape. The shaping control is more unpredictable in this middle position and the switch reacts to body contact. When the wave shape is set low – it can be thought of as an extra bonus waveform, great for producing glitchy sounds!

There are dedicated inputs for linear and logarithmic FM and the Cali also adds a Pulse output with its own width control and PWM CV input. The behavior of the pulse output can be affected by the position of the waveform switch and wave shape control. The module features Coarse and Fine frequency controls and an LFO mode, LFO range is accessed via an LED pushbutton that also acts as  the LFO speed indicator – the button will light up when the waveform moves through its positive cycle. Because the wave shape modulation is independent of pitch this oscillator is very useful for creating complex timbres whilst retaining musical pitch.

Check out this videos on Youtube!
https://youtu.be/w5PRJb3EoHc
https://youtu.be/N_QbAQFBsoI
https://youtu.be/Q9zAYOBa_y8

Features
• Sine to Saw/Square Waveform Output with CV over wave shaping
• Pulse output with voltage controlled PWM
• Linear FM with attenuator
• Logarithmic FM with attenuator
• Bonus ‘trapezoid’ output
• Coarse & Fine controls with LFO mode
• Includes power supply isolation on frequency controls

Power 37mA @ +12V; 34mA @ -12V
Width 12 HP
Depth 40mm

This is a Do-It-Yourself kit, not an assembled module. The kit includes all parts to build the module.  Building instructions can be found here.
DIY level: Advanced. 

The EN129 Thru Zero Oscillator is an all analogue triangle-core VCO specializing in frequency modulation. Analogue through-zero FM modulation produces a wide array of timbres particularly useful for bell like or percussive sounds.
Through zero linear frequency modulation can be precisely dialed in thanks to a dedicated CV input attenuator and through zero offset control. Logarithmic FM is also available via it's own dedicated input with attenuator and both FM inputs have an LED to indicate incoming voltages. Simultaneous analogue wave outputs include: Sine, Triangle, Sawtooth, Square and Pulse wave with Pulse Width Modulation. The PWM control goes to zero at either end of it's range, which is very useful for creating rhythmic sounds with voltage control. Furthermore the PWM control doubles up as wave shape modulation for the Sawtooth wave – gradually altering the waveform until it shifts half a cycle. The EN129 features Coarse and Fine frequency controls as well as an LFO mode. LFO range is accessed via an LED pushbutton that also acts as the LFO speed indicator – the button will light up when the waveform moves through its positive cycle. A new addition of a Soft Sync Input allows the phase of the oscillator to be controlled by an external oscillator for an even greater range of timbres.

Check out this videos on Youtube!
https://youtu.be/c9R1cJsibu0
https://youtu.be/N_QbAQFBsoI
https://youtu.be/8OjnssPzaqo

Features
• Soft Sync Input
• Thru Zero linear FM
• Logarithmic FM
• Zero to zero pulse width modulation
• Sawtooth wave shape modulation
• Simultaneous outputs for: Sine, Triangle, Saw, Pulse & Square
• Coarse & Fine controls with LFO mode
• Includes power supply isolation on frequency controls

Power 51mA @ +12V; 47mA @ -12V
Width 12 HP
Depth 40mm

This is a Do-It-Yourself kit, not an assembled module. The kit includes all parts to build the module.  Building instructions can be found here.
DIY level: Advanced.

Buchla 259 inspired waveshaper, the perfect module to put in-between your Dannysound Cali and EN129 oscillators! The Timbre is a 6HP Eurorack module based on the wave folder section of the Buchla 259 oscillator as implemented in the Music Easel. The wave folder adds extra harmonics to input signals that have low harmonic content to creating rich and interesting timbres. Typical input sources to use would be Sine and Triangle waves but you are welcome to try other sources as well! The Dannysound Timbre adds an extra input to the Buchla design  to allow 2 oscillators to drive the wave-folder simultaneously – this dramatically increases the range of possible tones that can be generated and allows the folder to go wild!

Check out this video on Youtube! https://youtu.be/soJunaBqUbI

Features
• Osc1 / Osc2 Mix – Adjusts mix between oscillator 1 and 2 inputs, also acts as an attenuator if only one of the inputs is used
• Timbre Control – Adjusts the overall wave fold amount
• Timbre CV – Bipolar (attenuverter) controls the Timbre CV input
• Symmetry – Adds an offset to the input so the top half of the wave starts folding earlier
• Blend – Mixes between the clean and effected sound

Power 46mA @ +12V; 48mA @ -12V
Width 6 HP
Depth 48mm

This is a Do-It-Yourself kit, not an assembled module. The kit includes all parts to build the module. Building instructions can be found here.
DIY level: Advanced.

The Multi-Mode Ladder (MML) Filter is a twist on the classic transistor ladder low pass filter by Dr. Robert A. Moog. This filter updates the classic 4-pole ladder design to provide Band Pass and High Pass filter responses as well as the traditional Low Pass filter, this module also adds CV control over the resonance as well as two frequency CV inputs.

The circuit features a fully discrete transistor design with an op-amp buffered output, this allows soft saturation of the input signal to get the classic overdriven tones of the ladder filter.  A bass compensation circuit has been included to retain the bass response in Low Pass mode when the resonance is increased. The bass compensation also helps to improve the response of the High Pass filter. The bass compensation can be removed if the user wishes to have a more classic response (see mods section in build doc).

Check out this videos on Youtube!
https://youtu.be/V1_RXbEHIcE
https://youtu.be/7ee6SbKSQdk
https://youtu.be/drO9BJKXFTs

Features
• Low Pass, Band Pass and High Pass modes
• CV controlled resonance
• Added low frequency compensation
• Soft saturation of input
• 2 x frequency CV inputs

Power 50mA @ +12V; 39mA @ -12V
Width 6 HP
Depth 51mm

This is a Do-It-Yourself kit, not an assembled module. The kit includes all parts to build the module. Building instructions can be found here.
DIY level: Advanced.

The M.M. VCA is a 6HP Eurorack VCA module based on the classic design by Dr. Robert Moog as used in his first portable synthesizer. The discreet design of the circuit has inherent soft clipping characteristics when driven, which either add harmonics to a pure sine wave or conversely remove higher order harmonics when amplifying waves such as a Saw or Triangle. This has the effect of slightly boosting the fundamental frequency, making sounds that are fatter and warmer than standard VCAs.

The M.M. VCA has two inputs with level controls – both inputs are then routed through two VCAs in series (PRE-AMP and MAIN AMP). This allows for modulation of the first VCA (PRE-AMP) with an LFO and the second (MAIN AMP) with an Envelope Generator.

An offset control provides a DC control voltage to the first VCA that can be used to bias the modulation so it doesn’t cut off
when the LFO is in the negative part of its cycle. This control should be set to full if modulation of the first VCA is not being utilized.

Check out this video on Youtube!  https://youtu.be/X-BHRjfrgwM

Features
• 2 x Audio Input Level Controls – Starts soft clipping after approximately 50%
• CV 1 (PRE-AMP) Level – Adjusts the amount of CV to VCA 1
• CV 2 (MAIN AMP) Level – Adjusts the amount of CV to VCA 2 (Normalled to 10V)
• CV 1 OFFSET Amount – Adjusts the amount of DC bias control voltage to VCA 1

Power 34mA @ +12V; 7mA @ -12V
Width 6 HP
Depth 38mm

This is a Do-It-Yourself kit, not an assembled module. The kit includes all parts to build the module. Building instructions can be found here.
DIY level: Advanced.

The LOOPING VCADSR is a 4-stage envelope generator that uses a Microcontroller from Electric Druid to generate a Voltage Controllable, Loop-able Envelope. The individual parts of the Envelope (Attack, Decay, Sustain, Release and Level) can all be individually controlled via CV.

This module has 3 MODES of operation:
• Normal Envelope – Gate signal fires ADSR
• Gated Looping Envelope – ADSR loops whilst gate signal is high.
• Looping Envelope – ADSR loops regardless of gate signal.

When the envelope is looping, all 5 controls affect the output. Attack and Decay operate, as one would expect. The Sustain control sets the minimum voltage the decay part of the envelope will decay to. The Release sets a release time from the end of the Sustain period to the beginning of the next cycle. When the Sustain is set to 0 you can use the Release control to add a delay between the Attack and Decay cycles. In Normal Envelope mode the Sustain CV input can be used with an LFO source to add amplitude modulation that gradually increases as the Envelope transitions from the Attack/Decay part of the envelope into the Sustain part. The Level CV is also a useful point for amplitude modulation or can be used for Velocity Sensitivity via CV.

Check out this videos on Youtube!
https://youtu.be/V1_RXbEHIcE
https://youtu.be/dAK4tzJNC20
https://youtu.be/AwfgnEKkzbg

Features
• 3 Modes of operation: Normal, Gated Loop, Constant Loop
• CV over: Attack, Decay, Sustain, Release, Level
• Works with GATE signals from +5V to +12V
• Output CV range 0V to +10V
• Based on the ENVGEN circuit design from Electric Druid

Power 28mA @ +12V; 18mA @ -12V
Width 6 HP
Depth 34mm

This is a Do-It-Yourself kit, not an assembled module. The kit includes all parts to build the module. Building instructions can be found here.
DIY level: Advanced.