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CONTROLS
NOTE: This image is a representation of the MZ-140Q, other models follow a similar layout
1. INPUT LEVELS
Each input allows granular control of the input sensitivity. By default, you should ensure these are all
set to the centre position which is unity gain.
•Each input gain control has a range -20dB to +20dB of gain adjustment with 0dB being the
centre.
•Each input includes an LED indicator that turns GREEN when a signal is present and RED when
the input starts to clip. If you find the RED LED illuminating, reduce the gain control so the RED
LED does not light, to avoid distortion.
2. ZONE CONTROLS
Each ZONE has an input source select control, two band EQ, led indicator and volume for that zone.
•SOURCE selects which input will play out of the zone from 1-5. If you are using a wall controller
ensure you set this to Remote, otherwise the wall controller will not be able to control the
source. If you don’t want the end user to be able to select a source, you can preset the input
here instead.
•VOLUME attenuates the power amplifier for that zone. This control sets the absolute power
available from the zone. When using a wall controller, its maximum volume will only go to the
maximum set here, not full power. This allows you to control relative levels of the zone, and
limit actual maximum levels. See the wall control user guide for more information.
•BASS/TREBLE Two shelving type EQ controls to alter the low and high frequencies for each
zone. Typically keep them in the centre to start with. Turning clockwise will increase the
relevant frequencies whilst turning anti-clockwise will reduce them.
Note: When the Treble control is set to absolute minimum, the MZ amplifier changes the zone mode to
include a Low-Pass filter set to 150Hz. This allows you to connect the zone directly to a subwoofer without
needing any external filtering.
•The bicolour LED near the volume control illuminates GREEN when a signal is present and RED
when the onboard limiter is active. Avoid the RED LED being on continuously, but illuminating
on peaks is perfectly fine for maximum headroom.
3. POWER LED
•Lights up GREEN to indicate the amp is connected to mains power and switched on via the
power switch on the back. Will go off when in power saving mode. See POWER SAVING
MODE for more information.
