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Appendix D: SPQ Expansion Card Operation
This appendix provides an introduction to the operation of Pro Tools | MTRX with an SPQ card installed. The functions of the card are
managed in DADman software. One or more SPQ cards can be installed in the MTRX. In most applications only one card is needed.
The cards can be installed in any of the available card slots, and are automatically configured by the software.
SPQ Overview
The SPQ Speaker Processor System is extremely flexible and you can match it to any speaker configuration, including various immer-
sive audio formats such as Dolby Atmos™. Configuration of the SPQ card filters is very flexible. The workflow for tuning a speaker
system involves an MTRX with an installed SPQ card and an audio measuring system for measuring the frequency response of the
speakers in the room.
Management of SPQ controls is handled by DADman control software where you can configure processing for all output channels in
the defined monitor profile (including cue output signals). Processing can be applied for room tuning, bass management, as well as
equalizing of cue and monitor signals. You can easily save and recall all configurations in the DADman monitor profile. You can also
configure general delay for a control room set-up as well as an individual delay per speaker channel.
The main features of the SPQ card are listed below.
• Room tuning with up to 16 filters per channel, and with Parametric, High Pass, Low Pass, and Shelving EQ characteristics
• Bass Management with support for multiple Subs
• Up to 1024 Filters
• Up to 128 channels at 48 kHz
• Native filters for all sample rates from 44.1 kHz to 384 kHz
• Adjustable latency up to 800ms per channel, divided as 0–200 ms as general delay and 0–600 ms as an additional channel delay
• Speaker match between various immersive audio formats (fold-up and fold-down)
MTRX requires DADman version 5.3 or higher, MTRX firmware version 2.1 and Brooklyn 2/Dante module firmware version 4.0
or higher (only if you also have a Dante module installed) to work with an installed SPQ card.
Refer to the SPQ Card Read Me for crucial information on how to upgrade MTRX units that are not supplied with firmware version
5.3 or (higher) from the factory.
Note that a separate audio measurement system is required to measure speaker frequency response, as well as the effect SPQ
equalization on the speaker system.