Roland M-160 II User manual

16500
OWNER'S MANUAL
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ATTENTION : nisaue ve choc ELECTRIQUE NE PAS OUVRIA
CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK,
DO NOT REMOVE COVER (OR BACK).
NO USER-SERVICEABLE PARTS INSIDE.
REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
() for-Vena re) ()
RISK OF ELECTRIC SHOCK
BO NOT OPEN
The lightning flash with arrowhead symbol, within an equilateral
triangle, is intended to alert the user to the presence of un-
insulated “dangerous voltage” within the product's enclosure
that may be of sufficient magnitude to constitute a risk of
electric shock to persons.
The exclamation point within an equilateral triangle is intended
to alert the user to the presence of important operating and
maintenance (servicing) instructions in the literature accom-
panying the product.
IMPORTANT SAFETY INSTRUCTIONS
WARNING — When using electric products, basic precautions should always be followed, including the following:
. Read all the instructions before using the product.
2. Do not use this product near water — for example, near a
bathtub, washbow/l, kitchen sink, in a wet basement, or near
a swimming pool, or the like.
. This product should be used only with a cart or stand that is
recommended by the manufacturer.
. This product, either alone or in combination with an amplifier
and headphones or speakers, may be capable of producing
sound levels that could cause permanent hearing loss. Do
not operate for a long period of time at a high volume level
or at a level that is uncomfortable. If you experience any
hearing loss or ringing in the ears, you should consuit an
audiologist.
. The product should be located so that its location or position
does not interfere with its proper ventilation.
. The product should be located away from heat sources such as
radiators, heat registers, or other products that produce heat.
. Avoid using the product where it may be affected by
dust.
. The product should be connected to a power supply only of
the type described in the operating instructions or as marked
on the product.
9.
15.
The power-supply cord of the product should be unplugged
from the outiet when left unused for a long period of time.
. Do not tread on the power-supply cord.
. Do not pull the cord but hold the plug when unplugging.
. When setting up with any other instruments, the procedure
should be followed in accordance with instruction manual.
. Care should be taken so that objects do not fall and liquids
are not spilled into the enclosure through openings.
. The product should be serviced by qualified service per-
sonnel when:
A. The power-supply cord or the plug has been damaged;
or
Objects have fallen, or liquid has been spilled into the
product; or
The product has been exposed to rain; or
The product does not appear to operate normally or
exhibits a marked change in performance; or
The product has been dropped, or the enclosure dam-
aged.
Do not attempt to service the product beyond that described
in the user-maintenance instructions. All other servicing
should be referred to qualified service personnel.
m 900 ®
SAVE THESE INSTRUCTIONS
WARNING:
For the U.K.
THIS APPARATUS MUST BE EARTHED
IMPORTANT: THE WIRES IN THIS MAINS LEAD ARE COLOURED IN ACCORDANCE WITH THE FOLLOWING CODE.
GREEN-AND-YELLOW: EARTH, BLUE: NEUTRAL, BROWN: LIVE
As the colours of the wires in the mains lead of this apparatus may not correspond with the coloured markings indentifying
the terminals in, your piug proceed as follows:
The wire which is coloured GREEN-AND-YELLOW must be connected to the terminal in the plug which is marked by
the letter E or by the safety earth symbol Q or coloured GREEN or GREEN-AND-YELLOW.
The wire which is coloured BLUE must be connected to the terminal which is marked with the letter N or coloured BLACK.
The wire which is coloured BROWN must be connected to the terminal which is marked with the letter L or coloured RED.
The product which is equipped with a THREE WIRE GROUNDING TYPE AC PLUG must be grounded.

Thank you for purchasing the Roland M-160II. The M-160II is a compact yet versatile and high-quality
16 channel line mixer.
To get the most out of your M-160II, please read this owner’s manual carefully and keep it handy so
you can refer to it as necessary.
mM FEATURES
@ 4U rack-mount 16-channel mixer with line inputs.
@ Wide range of input levels: channels 1 and 2 are mic level (-50 dBm), and
the others are adjustable in a range from -30dBm to professional line level
(+4 dBm).
® Four independent SEND and stereo RETURN jacks, with switchable pre/post
fader AUX jacks that can be used in effects loops or for monitoring.
® Separate MONITOR OUT and MASTER OUT jacks allowing independent
volume control of these signals.
@ A MONITOR IN jack lets you hear the tempo click from a sequencer through
the MONITOR OUT jacks or headphone jack (PHONES).
@ New signal routing design and components for optimum sound quality, in
the tradition of Roland M-series mixers.
@ Balanced XLR type connectors for professional use.
@ Peak Signal Indicators for each channel, and a Peak Meter and Pre-Fader
Indicator in the Master section for fast and accurate monitoring of levels.
Copyright © 1992 by ROLAND CORPORATION
All rights reserved. No part of this publication may be reproduced in any form
without the permission of ROLAND CORPORATION.

TABLE OF CONTENTS
| TLE} 1) | -¢e 3
MIimportant Notes... eee 5
Block Diagram and Signal Flow...... 7
1. Channel Section... ccecseeceseeeesees 7
2. Master Section eee /
[Inputs]
SSRETUC 2. cessiszeconed te tasetesscee tected Nake aeteie ee Seeeta 7
b. Monitor In 7
[Outputs]
c. Master Out 8
d. Monitor Out... 8
e. Effect Send.... 8
f. AUX Send...... 8
GEPNONES sas sseccicceeckid aa cdssciar ices bavecsdsvotienieneawee 8
Panel Descriptions wu... 9
1. Channel Section... cesecesseeeeescees 9
2. Master Section ............cccccsesseseeseeseeeeees 10
3. Rear Panel
Connections and Operation...
MBasic Procedure ..0.... cee eeceeeeseeeteeeteeceeees
1. Basic Setup with a Microphone,
Electronic Musical Instrument,
Audio Equipment, ete. «00.0.0... eee 14
@ Mixing a Microphone, Electronic Musical
Instrument, Audio Equipment, etc.......... 14
2. Setup Example with Effects Device .......... 16
wEffects processing with a delay,
ROVOlD, “ORC sicccesctssecuscsdassvestancdscese dessus seccdaecass 16
3. Monitoring (Foldback)
with AUX output oe eeceeeeerrenee 17
4. Monitoring using the MONITOR OUT....... 18
Level Diagram oc eeeeeee 19
Input/Output Standard 0. 20
[6] Specifications .......cccccccccccccssssssssecssessseceseen 21
INFOPMATION v.ccerciccceccsssscatcscaeccnsvcsssonsessrsreevnaressoasenss 22

important Notes
In addition to the items listed under Safety Precautions on page 2, please read and adhere to the
following:
[Power Supply]
[Placement]
[Maintenance]
@ When making any connections with other devices, always turn off the power
to all equipment first; this will help prevent damage or malfunction.
@ Do not use this unit on the same power circuit with any device that will
generate line noise, such as a motor or variable lighting system.
@ Using the unit near power amplifiers (or other equipment containing large
transformers) may induce hum.
@ This unit may interfere with radio and television reception. Do not use
this unit in the vicinity of such receivers.This unit may interfere with radio
and television reception. Do not use this unit in the vicinity of such
receivers.
@ Do not expose this unit to temperature extremes (eg. direct sunlight in an
enclosed vehicle can deform or discolor the unit) or install it near devices
that radiate heat.
@ For everyday cleaning wipe the unit with a soft, dry cloth (or one that has
been slightly dampened with water). To remove stubborn dirt, use a mild
neutral detergent. Afterwards, be sure to wipe the unit thoroughly with
a soft, dry cloth.
@ Never use benzene, thinners, alcohol or solvents of any kind, to avoid the
risk of discoloration and/or deformation.

[Additional Precautions] © Protect the unit from strong impact.
® Never strike or apply strong pressure to the display.
@ A small amount of heat will radiate from the unit, and thus should be
considered normal.
® Before using the unit in a foreign country, consult with qualified service
personnel.

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[2] PANEL DESCRIPTIONS
1. Channel Section
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@) Peak Signal Indicator (PEAK/SIGNAL)
These indicators will be green when signals are
fed into the CHANNEL INPUT jacks. The indica-
tors become red if the signal level is excessive.
In other words, indicators are green when the
signal level is -24dB of nominal level after
passing the input sensitivity circuits, and red at
-6dB of the clipping level.
(@) SENS Knob
Use this knob to adjust the input sensitivity
according to the level of the incoming signal.
The appropriate position of this knob is the point
at which the PEAK/SIGNAL Indicator is green,
and red only on the highest input peaks. If the
PEAK/SIGNAL Indicator does not light at all with
a signal present, set the SENS Knob higher or
increase the input level.
*Channels 1 and 2 have rated inputs of -50 to
+4dBm which are approprite input sensitivi-
ties for microphone level, while Channels 3 to
16 have -30 to +4 dBm rated input appropriate
for line level.
PEAK
SIGUL
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@) Effect Volume Knobs (EFF 1-3)
These knobs contro! the level of the signals
being sent to the Effect Send jacks.
*The signal to be sent to the Effect Send jacks
is extracted after the Channel Fader (Post-
fader).
@ AUX Volume Knobs
These knobs adjusts the level of the signals to
be sent to AUX Send.
*You can select the point at which the signals
sent to AUX Send are extracted using the AUX
Select Switch.
(6) Panpot Knob (PAN)
This sets the placing of the sound imaging in
stereo sound field. At the center position, the
volumes of L and R are equal.
© Channel Fader
These knobs contro! the overall level of each
channel's signal before being sent to the Master
section.
*The nominal output of the Channel! Fader is
obtained when it is set to “10”.

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2. Master Section
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(@) Master Peak Meter (PEAK METER)
This is a peak-reading meter that indicates the
output level from the MASTER OUT jacks. At
OdB, the standard level (+4 dBm) is output from
the MASTER OUT jacks.
@) Pre-fader Signal Indicators
(PRE FADER SIG)
These can be used to observe the output levels
of the amplifiers where signals from Channels
are mixed. The position where the signals are
read is Pre Master fader (before the Master
fader), When it is equal to the rated level
~20 dB, the indicator lights in green, and when
it is clipping level -6dB, it lights in red.
@) Master Faders
These knobs adjusts the overall output level at
the MASTER OUT jacks.
*The nominal output level is obtained when
the Master Fader Knob is set to “8”.
@) Return Volume Knobs (RTN 1-4)
These knobs adjusts the level of the signal fed
into the RETURN jacks.
() Monitor Out Volume Knob (MON QUT)
This knob adjusts the output level of the signal
from the MONITOR OUT jacks. This signal is
a mix of the Master signal (pre-Master Faders)
and the signal from the MONITOR IN jack.
© Effect Send Volume Knobs (EFF 1-3)
These knobs control the final output level of
the effect signal of each channel. The signal
is extracted after the Channel Fader Knob (Post-
fader).
* The nominal output of the Effect Send Volume
is obtained when it is set to “8”.
@ AUX Send Volume
This knob controls the final output level of the
AUX signai of each channel. The AUX Select
Switch can be used to switch between Pre-fader
or Post-fader signals (i.e., the signal before or
after going through the Channel Fader).
* The nominal output level is obtained when
the AUX Send Volume is set to “8”.