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The device sending audio into the M-16DX must be set to the same
sampling rate as the M-16DX. To learn how to set the M-16DX’s sampling
rate, see the Getting Started with the M-16DX Workshop booklet.
Connect the M-16DX’s DIGITAL OUT coaxial or 2
optical jacks to speakers with digital inputs—
such as EDIROL MA-15D/BK and Roland
DS-90A, DS-5, DS-7, and DS-8 speakers—or
mastering devices. Both jacks carry the main
mix, and can be used at the same time.
Back of the I/O Module
In addition to its power jack and cord hook—see Getting Star ted with the
M-16DX—the back of the I/O module has a variety of inputs and outputs.

Inputs Area

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1
Most of the M-16DX’s remaining inputs are in this area of the I/O module:
Balanced TRS LINE IN Jacks 5-10 are perfect for connecting stereo 1
instruments such as synths and beat boxes. Each L/R, odd/even pair
of inputs gets handled by the corresponding stereo M-16DX mixer
channel, 5/6 through 9/10. If you prefer, you can connect a mono
device to an odd-numbered channel, in which case the corresponding
mixer channel operates in mono to handle the signal.
2 TRS LINE IN Jacks 11 and 12 behave the same way as Jacks
5-10, except that they share Channel 11/12 with the
DIGITAL IN signal. When the mixer ’s DIGITAL button is lit,
Channel 11/12 carries digital audio from the DIGITAL IN (11/12)
coaxial or optical jack. When it ’s unlit, Channel 11/12 carries the
signal from these rear-panel LINE IN jacks. As with Jacks 5-10, you can
also use Jack 11 only for a mono signal, turning Channel 11/12 into a
mono channel.
When the mixer’s USB button is unlit, the balanced
3
TRS LINE IN Jacks 13 and 4 (AUX RETURN 1)
can be connected to the outputs of an external
effect device to which you’ve sent audio via the
M-16DX’s Aux 1 bus. Again, you can use only Jack
13 for a mono signal.
The RCA-type LINE IN 15 and 16 (AUX RETURN 2) jacks can be
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connected to the outputs of an external effect device to which you’ve
sent audio via the M-16DX’s Aux 2 bus.
Channel 15/16 is an especially flexible channel in that it allows the
use of three different types of connectors, including the RCA-type
connectors we’ve already mentioned. If the device you’d like to
connect to stereo Channel 15/16 has 1/4” connectors, you can plug
them into the 1/4” LINE IN 15 and 16 jacks on the back of the mixer.
If you’d like to connect a portable MP3 player, recorder such as an
EDIROL R-09, or any other device with a stereo mini-type output, you
can use the LINE IN (STEREO) 15/16 mini jack on the back of the mixer.
Use one set of inputs at a time.
Of course, you can plug stereo devices other than effect-box outputs
into Inputs 13/14 or 15/16 if you like. They’re simply good candidates
for effect returns and other signals that require only level adjustments
since Channels 13/14 and 15/16 are simple channels with no EQ, Aux
send controls, or panning capabilities.