ADDAC 4 quadrant mixer announced

ADDAC System 805 Eurorack Module Offers Four-Quadrant Mixing

ADDAC System 805 Eurorack Module Offers Four-Quadrant Mixing

Inspired by its renowned 701 VCO waveform mixing section, the 805 VC Signal Router employs three X-faders for advanced morphing and sweeping of signals

Lisbon, Portugal, December 20, 2019 — ADDAC System has announced availability of its new 805 VC Signal Router. While taking up just 8hp of space and priced at €160, the VC Signal Router is an economical way to add significant dimension and new signal flow options to just about any modular set up.  

Inspired by ADDAC System’s 701 VCO waveform mixing section, the new VC Signal Router also updates the company’s legacy X-Fade/Panner to a stereo configuration that also allows four quadrant mixing. This feature is achieved by using the stereo Master knob as an X-fader between the left and right channels. By plugging in the four audio sources and sweep/crossfade between any of them using the three combined X-faders, users can plug any four sources (for instance, four waveforms of a VCO, four LFOs, four envelopes) —  then sweep, morph or mix them to their heart’s content. 

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“Our VC Signal Router builds on some basic mixing principles derived from our 701 VCO waveform mixing section, while bringing in a new dimension of sound placement possibilities,” said André Gonçalves, founder of ADDAC System. “Even though the 805 requires a relatively small investment. four quadrant mixing can add a glacial effect to just about any soundscape.”

A peculiar signal flow meant to inspire
The VC Signal Router features two dedicated X-faders and a stereo VCA that can also be used as a third X-Fader. All controls have their own CV inputs and dedicated Attenuverters for precision control. Left and Right X-fader channels can also be routed through the Master stereo VCA or sent directly to the outputs. Further, a stereo Direct input can also be routed through the Master VCA or sent straight to the outputs. 

The Mono Sum output always mixes Left and Right outputs together, allowing users with the possibility of using the module as a peculiar six channel mono mixer. It can be used for both Audio or CV Signals. 

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Features:

  • 6 mono inputs

  • 2 dedicated X-faders with Control knob + CV Input and Attenuverter Each X-fader can be routed through the Master mix or straight into the outputs.

  • Master channel can be used as a stereo VCA or an X-fader
Stereo direct inputs can be routed through the Master mix or straight into the outputs.

  • Fully analog audio path with high quality/low noise VCAs. 

To learn more about the ADDAC System 805 Eurorack module, please visit the ADDAC System website


About ADDAC System
ADDAC System develops advanced instruments for sonic expression. The company began in 2009 with an ambition to explore the potential crossover between analog synthesizers and computers. Today, ADDAC System’s product line is focused on a new breed of hybrid synths that utilize the best of both the digital and analog worlds. We’ve grown to be able to reach thousands of enthusiastic clients, friends and collaborators. ADDAC System’s solutions — which are used in many musical genres — can be found in many personal studio throughout the world and routinely used by musicians in several planes of stardom.

Synthrotek VCA triple response Dual VCA

The Synthrotek Triple Response Dual VCA uses high quality op amps to give you the sound quality you are looking for in affordable kits and completed units. This VCA has three different response curves per channel: 2 Exponential and 1 Linear. The amplitude of EX2 (switch at right position) can be slightly attenuated via 1 trimmer pot per channel on the PCB. This allows for 3 different curves per channel. EX2 has a slightly more exponential curve than EX1. This VCA operates at 0-5V; a 5V CV input will give you 5V point to point audio output. Use over 5V if you want a super ballsy, loud VCA!
Intended for AC and audio use only (DC coupling will not function properly).
Features include:

– ~5V peak to peak output with a +5 DC CV input

– 2 exponential and 1 linear response per channel

– Channel 2 is normalled to channel 1

– Compact 4HP sized module

– Kits, complete and PCB/panel combos

– High Quality Op Amps

– Module depth: 1 7/8 inches (4.7 cm)

– Max current draw: 1mA on -12V rail, 9mA on +12V rail

 

Buy it HERE 

Here is the live build event where I build the resistor section of the VCA and hold a Q&A during it. It is a quite long video as it was held off the cuff, very laid back.