Biamp 901.0339 Tesira EEC-4

Product Overview

The Biamp Tesira EEC-4 is a 4-channel expander input card with Acoustic Echo Cancellation for the Tesira EX-MOD modular expander. It is the card integrators install when a remote zone needs local mic/line inputs with on-board echo cancellation feeding a networked Tesira system. Using Biamp's Sona AEC technology, this Tesira expander AEC card delivers four balanced inputs at the point of use and connects back to the DSP over the AVB network. The EEC-4 is one of several cards that can populate an EX-MOD chassis.

Product Description

Each EEC-4 provides four channels of mic/line level audio input with AEC on plug-in barrier strip connectors, and it is designed exclusively for the Tesira EX-MOD expander. The EX-MOD holds up to three cards in any combination for a maximum of 12 channels, and communicates with the Tesira AVB network for audio, configuration, and control. This makes the EEC-4 well suited to AV system integration projects where microphones are located far from the main equipment rack, such as distributed conference rooms or divisible spaces. Software control of each input includes gain with clip indicator, +48V phantom power, mute, level, and signal invert, across a 0–66 dB gain range in 6 dB steps. Analog-to-digital conversion is 24-bit at a 48 kHz sampling rate. The card carries Biamp's Sona acoustic echo cancellation for clean far-end audio in hands-free conferencing. It incorporates AES48-2005 grounding and EMC practices, is RoHS compliant, and carries Biamp's 5-year warranty. Pair it with the Tesira EIC-4 input card and Tesira EIOC-4 I/O card for the EX-MOD, or browse the full Biamp collection.

Key Features

• Four Mic/Line Inputs With AEC — The card provides four channels of balanced mic or line level input with Acoustic Echo Cancellation on plug-in barrier strip connectors.
• Sona AEC Technology — On-board Sona acoustic echo cancellation delivers clean far-end audio for hands-free conferencing.
• Built for EX-MOD — The EEC-4 is designed exclusively for the Tesira EX-MOD expander and can be combined with other EX-MOD cards.
• Remote Placement — The card lets microphones connect locally in a remote zone while feeding the DSP over the Tesira AVB network.
• Full Input Control — Each input offers gain with clip indicator, +48V phantom power, mute, level, and signal invert across a 0–66 dB gain range in 6 dB steps.
• 24-bit / 48 kHz Conversion — Analog-to-digital conversion is 24-bit at a 48 kHz sampling rate.
• 5-Year Warranty — The EEC-4 is covered by Biamp Systems' 5-year warranty.

Typical Applications

• Boardroom
• Conference room
• Huddle room
• Multi-purpose room
• Training room
• All-hands room

Technical Specifications

Specifications sourced from the Biamp Tesira EEC-4 datasheet. Confirm detailed specifications against current Biamp documentation.

Frequently Asked Questions

Which device accepts the EEC-4?
The EEC-4 is designed exclusively for the Tesira EX-MOD expander, which holds up to three cards for a maximum of 12 channels.

How does the EX-MOD connect to the Tesira system?
The EX-MOD communicates with the Tesira AVB network for audio, configuration, and control.

What echo cancellation does it use?
The card uses Biamp's Sona acoustic echo cancellation on its four inputs.

What connectors and phantom power does it provide?
Inputs are balanced on plug-in barrier strips with +48 VDC phantom power at 7 mA per input.

What is the gain range?
Each input offers 0–66 dB of gain in 6 dB steps.

Why choose an expander card over a server input card?
An EX-MOD with EEC-4 cards lets you place inputs near remote microphones and network them back to the DSP, reducing long analog cable runs.

What warranty applies?
Biamp covers the EEC-4 with a 5-year warranty.