The INs and OUTs of Modular Synthesis: ADDAC System Launches Balanced Input and Output Modules

ADDAC710 AND ADDAC711 Eurorack modules protect your modular system from unwanted noise and interference

Lisbon, Portugal, October 4, 2022 — ADDAC System introduces two new Eurorack modules: the ADDAC710 Balanced Outputs and the ADDAC711 Balanced Inputs. The new modules are designed to keep your modular system free of undesired, noisy audio interference by providing shielding and electrical isolation from external sources. Both modules — which are also available as DIY kits — are just 6HP wide and available now at a price of €160 (710) and €240 (711).

ADDAC710 Balanced Outputs
Designed to only output what your modular system is actually producing minus any noisy interference, the ADDAC710 is a dual channel Isolated DI box that provides galvanic, electrical isolation between the modular system and external sources. Such interference can be very common, and often caused by impedance mismatch or ground loop induced hum.

The ADDAC710 circuit is designed around an impedance matching transformer, operating in the 20 Hz to 20 KHz range, and provides two fully balanced outputs (via XLR connectors). This module serves as a low-cost alternative to the ADDAC800X High-End Outputs module, which ADDAC System has redesigned using a smaller low-cost transformer that also reduces it’s depth — making it perfect for more shallow Eurorack cases.

Features and Specifications

Two independent output channels
LIFT/FLOAT/GND toggle switch 
Signal overload warning LED
(2) XLR Outputs
6HP 4 cm deep 40mA +12V 40mA -12V

ADDAC711 Balanced Inputs
While the ADDAC710 is designed to protect what goes out of your modular, the ADDAC711 protects what comes in. Using a dual channel Isolated DI box, the ADDAC710 keeps your modular free of undesired noisy interferences by providing galvanic electrical isolation from external sources while preventing ground loop induced hum.

Similar to the ADDAC710 at the output stage, the ADDAC711 also uses an impedance matching transformer that operates in the 20 Hz to 20 KHz range, while providing two fully balanced outputs (via XLR connectors).

Features and Specifications

Two independent channels on the module with audio output
Signal overload warning led
LIFT/FLOAT/GND toggle switch
Gain control XLR Input
6HP, 4 cm deep 40mA +12V 40mA -12V

The ADDAC710 and ADDAC711 modules are available now and priced at €160 and €240 respectively. For more information, please visit the ADDAC System product page.

About ADDAC System
ADDAC develops advanced instruments for sonic expression. The company started back in 2009 with an ambition to explore the potential crossover between analog synthesizers and computers. Because its first creations sparked a lot of attention, ADDAC decided to work hard and put them in customers' hands. Today our product line is focused on a new breed of hybrid synths, that make use of the best of both the digital and analog worlds. We've grown to be able to reach thousands of enthusiastic clients, friends and collaborators. Always looking into conceptualizing and developing the most exquisite instruments, we hope you're able to join and share this passion with us.