Lisbon, Portugal, January 24, 2020 — As the smoke clears from The NAMM Show 2020, ADDAC System announces its new 604 Dual Filter — a new multimode filter designed to be used in a stereo signal path. As ADDAC System develops its modules, minor breakthroughs occur to inspire other modules, and such was the case with the 604 Dual Filter — which takes its inspiration from the unique sound of the ADDAC 105 4 Voice Cluster which was announced last November.
"While developing our 105 4 Voice Cluster module, we created brand new multi-mode filter designed to be placed after the summing mix stage," said André Gonçalves, founder of ADDAC System. "We were so pleased with its sound that we decided to release it as a dedicated filter."
To make the module more interesting, ADDAC System engineers duplicated the circuitry of the new multi-mode filter so it could be used anywhere in a stereo signal path. Further, to add sonic versatility, a switch was also included to set the working mode from Stereo to Dual Mono mode, in which both filters can be used independently.
A dual filter that doesn't cut corners
In Stereo Mode the Left Cutoff is used to control the Right Cutoff. In this case, the Right Cutoff Knob and CV Input are simply bypassed and will have no impact on the Right Channel operation. This allows immediate sync of both filter frequencies when the Stereo position is engaged.
Optionally there’s a jumper in the back of the unit that, when placed, connects the Right Controls back to the Right CV control. This allows the user to control the offset of the Right Channel Cutoff. Meantime, resonance is independent on both Modes and still has to be set manually to match both channels.
Both the Audio and CV inputs are normalled from the Left into the Right channels. As expected, plugging any input to the Right channels removes this connection.
The ADDAC System 604 Dual Filter will be shipping in March at a price of €180 and also be available as a full DIY kit. To learn more, 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.