User Manual

Monitor 8 Rear Panel
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1. The Monitor 8 is equipped with an auto-switching inter-
national power supply.
2. These ADAT optical “lightpipe” jacks provide 16 channels
of 24-bit ADAT optical digital input at 1x sample rates
(44.1 or 48 kHz) or 8 channels at 2x sample rates (88.2 or
96 kHz). They are disabled at higher sample rates. Use
them to route channels from another optical device, such
as a mixer, to be included in each monitor group mix.
3. The MAIN OUT pair provides stereo analog output for
primary (powered) studio monitors or PA speakers, or
any other desired destination. Control volume from the
MOTU Web App or from the front panel volume control.
To hear audio playback from your host audio software on
the MAIN OUT pair, assign audio tracks (and master
fader) to these main outs. You can also use the MOTU
Web App to route live Monitor 8 inputs (and network
inputs) here as well.
4. The AUX OUT pair provides auxiliary stereo analog output
for secondary studio monitors, or any other desired
destination. These connectors are balanced
(tip/ring/sleeve). Control volume from the MOTU Web
App or from the front panel volume control.
5. Monitor Groups E and F (output channels 9-10 and
11-12, respectively) provide two mirrored outputs:
1) a headphone output, which mirrors its corresponding
front panel headphone output, and 2) a summed mono
output (commonly used to feed a stage monitor), which
also mirrors the headphone output.
6. Monitor Groups A through D provide three mirrored
output pairs: 1) balanced stereo L/R (for wireless
monitoring systems), 2) headphone (for wired
headphone installations), and 3) summed mono (for
stage monitors). All outputs within a group mirror each
other and their corresponding headphone output on the
front panel.
7. Equipped with very high quality 24-bit 192 kHz convert-
ers, these eight analog inputs are balanced TRS (tip/ring/
sleeve) quarter-inch connectors that can also accept an
unbalanced plug. Use them to include external analog
sources into your monitor group mixes. These inputs are
equipped with the Monitor 8’s Precision Digital Trim™
feature: digitally controlled analog trims that let you
adjust input level in 1 dB increments from the MOTU web
app.
8. Connect Monitor 8 to the computer here using a
standard USB cable. If you plan to connect Monitor 8 to
an AVB network, use the network port (instead of USB).
9. This AVB ethernet port provides industry standard IEEE
802.1 network connectivity to other network devices.
Examples include:
■ Another Monitor 8 or any other MOTU AVB-equipped
device, such as the 1248, 8M, 16A, 24Ai or 24Ao audio
interfaces.
■ A standard ethernet hub or Wi-Fi router (for internet
connection and communication with the web app
software).
■ A standard AVB Ethernet switch for high-speed, low-
latency, high-capacity audio connectivity to an AVB
audio network.
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