Pro Intercom AD920 Balanced/Unbalanced Interface
Pro Intercom AD920 Balanced/Unbalanced Interface
SoundPro Item: 39539 | Part Number: AD920
Usually ships in 5-7 business days
- Provides impedance matching and signal conversion between a balanced intercom circuit and an unbalanced intercom circuit
- Both channels become audio and light-signal compatible
- Power may come from either intercom circuit or from both simultaneously
- Connection is via clearly marked 3-pin XLR connectors
The AD920 Balanced/Unbalanced Interface provides impedance matching and signal conversion between a balanced intercom circuit and an unbalanced intercom circuit. Both channels become audio and light-signal compatible. Power may come from either intercom circuit or from both simultaneously.
This is particularly useful for production crews wanting to use their unbalanced system with a balanced ‘house’ system. Each circuit to be used will require its own AD920.
There are no user-operated controls. Connection is via clearly marked 3-pin XLR connectors; 1 female, 1 male.
The AD920 is powered by the circuits to which it is attached. It matches the unbalanced line to the balanced line and translates the signal activating voltage of the unbalanced system to the 20kHz tone used for signal activation in the balanced system and vice-versa. There are no controls or adjustments. One AD920 is required for each circuit to be matched.

- Connection3-pin XLR connectors; 1 female, 1 male
Why Choose SoundPro?
Since 1973, SoundPro has been the trusted source for audio, video, and lighting gear. Whether you're starting your AVL journey or are a seasoned professional, we're here to help you every step of the way.
-
Certified Account Managers
Our Account Managers, with 16+ industry certifications, are ready to find your solution.
-
Personalized Pricing
We know every project is unique. Get a personalized quote anytime you need it
-
Fast Shipping & Local Pickup
In stock items ship same day if ordered by 4pm CST. Pickup offered in Irving, TX.
-
Accountability from Real People
We aim for a smooth, transparent experience by setting and sticking to clear expectations.
-
Easy Payments & Financing
We accept all major credit cards and also offer financing through our partners.
Sales & Expert Advice
Our team of Certified Account Managers are deeply passionate about this industry and have hands-on experience with AVL solutions for houses of worship, live productions, integration and more. Customer Service Hours: 9am - 5pm CST