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Avid MTRX Buying Guide

Avid MTRX Buying Guide

Avid is leading the audio industry again with the finest AD/DA interface they’ve ever released. The Avid Pro Tools® | MTRX Converter System is a highly configurable multichannel audio interface that offers converters, mic preamps, format conversion, and extensive signal routing, plus monitor control, all in a single 2U rack space. Let’s explore what the Avid MTRX can do for you.

Here’s a list of questions that will help determine if MTRX is the perfect interface for you. Do you need:

  • the highest-quality Pro Tools–compatible HD interface that money can buy?
  • 48 channels of incredible mic preamps in a single 2RU box with DigiLink or Dante output?
  • an AD converter that offers the finest audio conversion at rates up to 384kHz, as well as DSD 64 or DSD 128 with precise internal clock?
  • the security of dual power supplies for your critical recording applications?
  • a MADI I/O solution that offers 64 channels of I/O in a single box?
  • a configurable analog or digital I/O that can offer 48 line-ins or 48 line-outs?
  • a highly configurable monitor controller with the capability of having 48 discrete outputs to build monitoring solutions for 5.1, 5.2, 7.1, 9.1, 11.2, or Atmos?

If you answered yes to any or all of the above, then MTRX is the answer for you.

What is MTRX?

1 – A Powerful World-class Interface

Released in conjunction with Digital Audio Denmark, one of the world’s most respected makers of high-end professional A/D and D/A converters, MTRX is a multi-format HD interface that utilizes card slots to make it configurable to handle just about any need. This 2U rack unit has eight card slots that will hold converters or other cards that can handle up to 48 channels of A/D and D/A, and optional mic preamp cards can accommodate up to 48 channels of pristine mic amplification. This Eucon-controlled interface will handle AES3, MADI, and 3G-SDI and will accommodate the following:

  • 64 channels of DigiLink (dual 32-channel Mini-DigiLink ports)
  • 64 channels via Dante
  • 1024 channels over MADI (192 channels on the chassis)
  • 144 channels of AES/EBU (16 channels on the chassis)
  • 128 channels with the Dual MADI card
  • 256 channels via 3G-SDI (2 x 16-channel embed/de-embed with SRC)
  • 16 channels via the AES3 card (16 channels per card)

Using combinations of the expansion cards allows you to customize the MTRX into exactly the interface you need. Analog cards include:

The capabilities of the MTRX also allow these digital options:

MTRX 8 Mic/Line Pristine AD Card

The MTRX offers dual internal power supplies for redundancy (when using five cards or fewer) for mission-critical reliability. For large setups, multiple MTRX units can be controlled from a single computer, or conversely, multiple workstations can have synchronized control of a single MTRX interface for maximum flexibility.


2 – An Extensive Monitoring and I/O Controller

MTRX comes with DADman software for configuration and routing of audio signals, and it also enables control of the Pro | Mon monitor section. You can use it to set up multiple monitoring and talkback options. Routing to multiple different speaker setups — mono to stereo, 5.1, 7.1, 9.1, all the way up to surround systems with 64 channels of audio — is all possible with the MTRX. Pro | Mon 2 monitoring section also allows custom fold-down templates for switching between monitor formats. It also includes a 256 x 32, 32-bit floating-point summing mixer so you can sum stems and sources to feed different monitor outputs. Talkback options are extensive too, with built-in talkback capabilities that allow routing to any set of monitor outs as well as Cut and Dim options on any output. DADman is compatible with both Macs and PCs and complete control of all interface parameters including:

  • A/D analog input
  • Mic pre gain and parameter control
  • D/A output level
  • Routing matrix
  • Settings configuration
  • Multiple unit control
  • Monitor control configuration
  • Cue | Mix zero latency mixer


3 – An Amazingly Comprehensive Patchbay

The MTRX low-latency router allows you to patch any of 1500 inputs to 1500 outputs, yielding astounding flexibility for even the most complex audio installations. Any input channel can be routed to any output channel, individually or simultaneously, providing for extensive connectivity.

Here is a screenshot of the 1500 x 1500-point DADman patchbay.


MTRX: The Ultimate Interface

Clearly the Avid MTRX can handle all your interface and monitoring needs — you just need to decide which optional cards you should install to accommodate your immediate needs. Here are some standard configurations that Sweetwater has available.

To configure your customized system, call your Sweetwater Sales Engineer at (800) 222-4700 and design your customized MTRX today.

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Offer applies only to single-receipt qualifying purchases. Select manufacturers may require that only the manufacturer’s products qualify towards the minimum purchase amount needed to be eligible for promotional financing. Otherwise, an invoice that meets the minimum purchase amount and contains at least one qualifying manufacturer product is eligible for promotional financing. No interest will be charged on promo purchase balance, and equal monthly payments are required on promo purchase until it is paid in full. The payments equal the amount financed divided by the number of months in the promo period, rounded up to the next whole dollar. These payments may be higher than the payments that would be required if this purchase was a non-promo purchase. During the last month(s) of the promo period the required monthly payment may be reduced due to the prior months’ rounding. Regular account terms apply to non-promo purchases. New Accounts as of 07/31/2025: Purchase APR is 34.99%. Penalty APR is 39.99%. Min Interest Charge is $2. Existing cardholders: See your credit card agreement terms. Subject to credit approval.

Offer applies only to single-receipt qualifying purchases. No interest will be charged on the promo balance if you pay it off, in full, within the promo period. If you do not, interest will be charged on the promo balance from the purchase date. The required minimum monthly payments may or may not pay off the promo balance before the end of the promo period, depending on purchase amount, promo length and payment allocation. Regular account terms apply to non-promo purchases and, after promo period ends, to the promo balance. New Accounts as of 07/31/2025: Purchase APR is 34.99%. Penalty APR is 39.99%. Min Interest Charge is $2. Existing cardholders: See your credit card agreement terms. Subject to credit approval.

The estimated required monthly payment shown which excludes taxes and delivery equals the amount financed divided by the number of months in the promo period, rounded up to the next cent. During the last month(s) of the promo period the required monthly payment may be reduced due to this rounding. These payments apply only with the financing offer shown. If you make these payments by the due date each month, you should pay off this amount financed within the promo period, if it is the only balance you are paying off. If you have other balances on your account, this payment will be added to any other minimum monthly payments.

Applies only to select items from this manufacturer. Ask your Sweetwater Sales Engineer for more details.