Description
ADDAC711 is a dual channel Isolated DI box and is all about keeping the sound coming into your Modular free from any undesired noisy interferences, making sure that what you’re getting from your inputs is what your external hardware is actually producing. It provides galvanic electrical isolation between the Modular system and external sources preventing impedance mismatch and ground loop induced hum.
ADDAC’s 711 circuit is designed around a unity 1:1 type Audio Transformer operating in the 20 Hz to 20 KHz range, this impedance matching transformer provides two fully balanced outputs (via XLR connectors).
The LIFT/FLOAT/GND 3-way switch lets you choose between lift, ground or floating ground.
In the LIFT position (left) the module circuit will be “lifted” to ground through a 100R resistor and a 10nF capacitor.
In the FLOAT position (middle) Ground will not be shared leaving ins and outs grounds completely apart from each other fully isolating both signals.
In the GND position (right) Ground will be shared between inputs and outputs; here no isolation is used.
Any of these three positions may be the best form of avoiding ground loops or any other undesired interference occurring between your modular and the external hardware. Try out which one of these options will work best in any given situation.
The ADDAC711's Inputs accept not only XLR balanced but also TS Mono jacks and TRS balanced jacks.
Note: The ADDAC711 is meant to be used with line signals. Mic and instrument levels will still need to be amplified to line level prior to the module.
This module is also available as a full DIY kit.
Tech Specs:
6HP
4 cm deep
40mA +12V
40mA -12V
Note: All specifications and features are subject to change without previous notice.
Custom Panel
In case you're wondering: Sure! We can get you a custom coloured front panel for the ADDAC711.
It has an additional cost and takes 4 to 6 weeks to be ready.
A custom colour panel can be done in either Red, Green, Blue, White, Silver Gray, Yellowed Silver, and Dark or Light Bronze.
Print colour varies between Black, White, or Red, Yellow, Blue and Green. We recommend lighter-tone print for darker panels, and vice-versa.
Please note: we don’t stock custom coloured panels. For every custom order we need to make a single panel order from our panel provider. This explains the panel price and lead time.
DIY Kit
This module is also available as a DIY Kit.
It costs 171.60€ (Excl. VAT).
You can also get it from distributors listed on our Order page.
Here's the detailed step by step Assembly Guide Pdf:
https://media.addacsystem.com/diy_guides/ADDAC711_DIYkit.pdf