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RM65 HEXMIX
6 x 4 Audio Mixer
OWNERS MANUAL
LIMITED W ARRANTY
This product is warranted to the original consumer purchaser to be free from
defects in materials and workmanship under normal installation, use and service for a
period of one (1) year from the date of purchase as shown on the purchaser’s receipt.
The obligation of Rolls Corporation under this warranty shall be limited to repair
or replacement (at our option), during the warranty period of any part which proves
defective in material or workmanship under normal installation, use and service, provided
the product is returned to Rolls Corporation, TRANSPORTA TION CHARGES PREP AID. Products returned to us or to an authorized Service Center must be accompanied by
a copy of the purchase receipt. In the absence of such purchase receipt, the warranty
period shall be one (1) year from the date of manufacture.
This warranty shall be invalid if the product is damaged as a result of defacement, misuse, abuse, neglect, accident, destruction or alteration of the serial number,
improper electrical voltages or currents, repair, alteration or maintenance by any person or
party other than our own service facility or an authorized Service Center, or any use
violative of instructions furnished by us.
This one-year warranty is in lieu of all expressed warranties, obligations or
liabilities. ANY IMPLIED WARRANTIES, OBLIGATIONS, OR LIABILITIES,
INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, SHALL BE
LIMITED IN DURATION TO THE ONE YEAR DURATION OF THIS WRITTEN
LIMITED WARRANTY. Some states do not allow limitations on how long an implied
warranty lasts, so the above limitation may not apply to you.
IN NO EVENT SHALL WE BE LIABLE FOR ANY SPECIAL, INCIDENTAL
OR CONSEQUENTIAL DAMAGES FOR BREACH OF THIS OR ANY OTHER
WARRANTY, EXPRESSED OR IMPLIED, WHATSOEVER. Some states do not allow
the exclusion or limitation of special, incidental or consequential damages so the above
limitation or exclusion may not apply to you. This warranty gives you specific legal
rights, and you may also have other rights which vary from state to state.
ROLLS CORPORA TION
SALT LAKE CITY, UTAH
7/01
FEATURES
• 6 XLR and 1/4” Inputs
• Individual 36 V Phantom P ow er
• Clip LEDs on each channel
• Input Trim, Monitor, FX Send and Pan on each channel
• Treble & Bass control on each channel
• FX Return, may be used as an additional input
• Stereo Aux Bus Input
CLI
P
CLI
P
FX
SEND
PANTREBLE
BASS
MONITOR
010 010-
+-+
L
R
FX
SEND
PANTREBLE
BASS
MONITOR
010 010-
+-+
L
R
VOLUME
VOLUME
CLIP
CLIP
FX
SEND
PANTREBLE
BASS
MONITOR
010 0 10-
+-+
L
R
FX
SEND
PANTREBLE
BASS
MONITOR
010 010-
+
-
+
L
R
VOLUME
VOLUME
CLIP
CLIP
FX
SEND
PANTREBLE
BASS
MONITOR
010 010
-+-
+
L
R
FX
SEND
PANTREBLE
BASS
MONITOR
010 010
-+-
+
L
R
VOLUME
VOLUME
PWR
+17
+8
0
-4
-13
LEFT RIGHT
EFFECTS
RETURN
MASTER VOLUME
RM65
Professional
Audio Mixer
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INTRODUCTION
Thank you for your purchase of the Rolls RM65 6 x 4 stereo prof essional A udio
Mixer. This unit is a breakthrough in size/performance for an audio mix er. It’s a fullfunction 6 channel mixer in a single space 19” rac k chassis. It is intended for
sound reinforcement, studio, choir, and other applications where high channel to
size ratio is desired. It has 6 phantom po wer switches and input gain trims located
on the rear panel. This manual assumes the user has some familiarity with audio
mixers. If the features, knobs, or jacks seem unclear - please contact the dealer
for help.
INSPECTION
1. Unpack and inspect the RM65 bo x and pac kage .
If obvious physical damage is noticed, contact the carrier immediately to make a
damage claim. W e suggest sa ving the shipping carton and packing materials for
safely transporting the unit in the future.
2. Please complete the Warranty Registration Card and return it to the factory.
T ABLE OF CONTENTS
1. INTRODUCTION
INSPECTION
TABLE OF CONTENTS
DESCRIPTION
FRONT PANEL
2. FRONT PANEL (Continued)
REAR P ANEL
3. OPERATION
4. OPERA TION (Continued)
5. SPECIFICATIONS
6. SCHEMATIC
DESCRIPTION
FRONT PANEL
FX
SEND
PANTREBLE
BASS
MONITOR
010 010
-+-
+
L
R
FX
SEND
PANTREBLE
BASS
MONITOR
010 010
-+-
+
L
R
VOLUME
VOLUME
CLIP
CLIP
FX
SEND
PANTREBLE
BASS
MONITOR
010 010
-+-
+
L
R
FX
SEND
PANTREBLE
BASS
MONITOR
010 010
-+-
+
L
R
VOLUME
VOLUME
CLIP
CLIP
FX
SEND
PANTREBLE
BASS
MONITOR
010 010
-+-
+
L
R
PWR
+17
+8
0
-4
-13
LEFT RIGHT
EFFECTS
RETURN
MASTER VOLUME
FX
SEND
PANTREBLE
BASS
MONITOR
010 010
-+-
+
L
R
VOLUME
VOLUME
CLIP
CLIP
RM65
Professional
Audio Mixer
CHANNEL CONTROLS
VOLUME: Adjusts the amount of signal sent through the channel and to the FX
send and output.
CLIP LED: Indicates that the channel is being overdriven.
MONITOR: Adjusts the amount of signal sent from that channel to the Monitor
Send jack. The signal is pre-fader (pre-Volume control)
BASS: Controls the boost or cut of frequencies below 400 Hz for each channel.
TREBLE: Controls the boost or cut of frequencies abov e 400 Hz for each channel.
Sheet 1 of 1
Title
Size:
Date: 7-Nov-2000
Rb
C H 1
E F F E C T S
B A S S
1 O F 6
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-12V
P O W E R
+12V
+12V
+12V
+12V
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V O L U M E
C H 2 = U 3 A , U 4 A , U 4 B
C H 3 = U 5 B , U 5 A , U 4 B
C H 4 = U 6 A , U 6 A , U 7 B
C H 5 = U 8 B , U 8 A , U 9 B
C H 6 = U 9 A , U 1 0 A , U 1 0 B
R IG H T
L E F T
+12V
+12V
M O N I T O R
+12V
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VPHAN
R IG H T M A IN B U S
F X S E N D
B U S
M O N I T O R B U S
O V R L D
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C 5
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Q 2
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1 0 k
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Q 1
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C 1 1 1
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C 1 1 2
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C R 4
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C R 1
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C R 3
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1
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D 1 4
1 2 V
D 1 2
1 N 4 0 0 1
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1 N 4 0 0 1
C 1 7
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D 1 9
L D R R
R 3 0
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1 2
3
J 1
X L R F P C
J 1 8
P H O N E 1 / 4
R 1 2 1
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C 1 0 5
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C 1 0 4
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R 1 0 2
6 . 8 K
R 1 0 1
6 . 8 K
C 1 0 1
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C 1 0 2
1 U F
C 1 0 3
1 U F
R 2 6 1 0 K
R 1 8 1 0 K
6
5
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U 1 2 B
4 5 6 0
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3
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4 5 6 0
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4 5 6 0
R 3 1
1 0 K
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1 0 K
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4 . 7 K
R 2 4
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P 1 0 1
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R 1 2 0
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J 1 6
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R O L L S R M 6 5 6 X 4 M I X E R
E
A C I N
C 7
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C 8
1 0 0 0 U F 1 6 V
P H O N E 1 / 4
E F F E C T S R E T U R N
A U X B U S IN
E F F E C T S S E N D
M O N I T O R O U T
R 1 0
1 0 0
L E F T M A IN B U S
R 2 5
1 0 K
P A N
v p h a n
T R E B L E
15
R 2 8
1 0 0
R 2 7
1 0 0
1 0 K
R 2 9
1 0 K
C 1 4
1 0 U
R O L L S C O R P O R A T I O N
5 9 6 8 S o u t h 3 5 0 W e s t
S a l t L a k e C i ty , U T 8 4 1 0 7
P H O N E 1 / 4
D o c u m e n t N u m b e r :
R M 6 5 . S C H
Rev:
SCHEMATIC
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PAN: Adjusts the amount of relative signal to the Right, Left or both Main Out
jacks.
FX SEND: Controls the amount of signal (post-volume control) that is sent for that
channel to the FX Send jack.
MASTER CONTROLS
FX RETURN: Adjusts the amount of signal coming back into the FX Return jack.
MASTER V OLUME, RIGHT - LEFT : Controls the amount of signal sent out the
main Right and Left Output jacks, and sets the overall signal le vel except for the
Monitor Send jack.
REAR P ANEL
CHANNEL 1
MIC
LINETRIM
CHANNEL 2
MIC
LINE
TRIM
CHANNEL 3
MIC
LINE
TRIM
CHANNEL 4
MIC
LINE
TRIM
CHANNEL 5
MIC
LINE
TRIM
CHANNEL 6
MIC
LINE
TRIM
PHANTOM
POWER
AUX
BUSS IN
FX
SENDFXRETURN
MONITOR
OUT
RIGHT
OUT
LEFT
OUT
MODEL RM65
120 VAC
50/60 Hz 15 VA
SERIAL NUMBER
65-
MADE IN U.S.A.
WARNING
:
DO NOT EXPOSE THIS EQUIPMENT TO RAIN
OR MOISTURE.
CAUTION:
TO REDUCE THE RISK OF ELECTRIC SHOCK DO NOT NOT REMOVE BACK.
NO USER SERVICABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
RISQUE DE CHOC - NE PAS ENLEVER
C US
1 - 6 CHANNEL MIC INPUTS: XLR input connectors for mic or line level signals.
1 - 6 CHANNEL LINE INPUTS: 1/4” input connectors for line level signals.
TRIM: Adjusts the amount of input signal from the mic and line input jacks .
PHANTOM POWER: 6 switches for turning on the microphone phantom power for
the XLR inputs, and are numbered for the channel they are assigned to. DOWN is
on, UP is off.
AUX BUS IN: 1/4” TRS stereo input to the main mix bus, and may be used as an
auxiliary stereo input for joining two RM65s together.
FX SEND: 1/4” unbalanced jack for sending the signals assigned by each
channel’s FX Send control out to external effects .
FX RETURN: 1/4” unbalanced jack for inputting signals from external effects
devices.
MONITOR OUT: 1/4” unbalanced jack for sending signals assigned by each
channel’s monitor output control to an auxiliary amplifier or monitoring system.
RIGHT and LEFT OUTPUT: 1/4” TRS balanced jacks to be used as the unit’s
main outputs.
USING PHANTOM POWER
Phantom power is a means of powering condenser microphones through the
microphone cable. The RM65 has individually switchable 36 volts of phantom
power for each of its 6 channels through the XLR jack s. The DIP switches on the
rear of the unit are for switching the pow er on and off . When the little switch tab is
down, the power is on. The number on the switch corresponds to the channel that
is receiving the power. If phantom power is not needed, it should be switched off
to avoid possible damage to a microphone, or deg raded sound quality.
SPECIFICATIONS
Input Impedance: 600 W balanced
50K W unbalanced (1/4")
Output Impedance: 50 W TRS Balanced
Max Input Level: -15 dBV XLR 600 W
+18 dBV 1/4"
Phase Shift: < 10 deg. 20 Hz - 20 kHz
Phantom Power: 36 V DC
Input Connectors: XLR and 1/4"
Outputs: 1/4" main balanced +17 dB max
1/4" monitor +17 dB max
1/4" FX send
Max Gain: (Mains) 60 dB mic
26 dB line
(Monitor) 55 dB
Tone controls: 20 dB treb, bass cut/boost, 400 Hz center
Max S/N Ratio: 106 dB
THD < .003%
IMD (SMPTE) < .003%
CMRR 52 dB
Power 120 VAC 50-60 Hz, 15 W
Weight: 7 lbs (3KG)
Size: 19" x 1.75" x 6.5" (48cm x 4.5cm x 17cm)
NOTES:___________________________________________________________
25
Page 4
OPERATION
The RM65 is ideal for small combo groups where a small number of instruments
and microphones need to be mixed together. Refer to Figure 1 for an example of
how to connect the inputs and outputs of your RM65. Connect microphones to
balanced XLR cables and to the XLR inputs. If any of these microphones are
condenser microphones, they will require phantom power . To turn on the phantom
power for an individual channel, set the phantom power switch for that channel to
the ON (down) position. Instruments may be pla y ed into a microphone which is
connected as indicated above, or if you ha ve active pickups in your instrument
simply connect the output of your instrument to an RM65 Line Input as the
acoustic guitar is shown in Figure 1.
Electric guitars and basses normally are connected to an instrument amplifier or
preamplifier. Amplifiers ma y ha v e microphones placed in front of the speak er, or if
the amp has a line level output (check with the amplifier’s owners manual) - it may
also be connected to the mixer directly. Ke yboards and sound modules are
connected directly to the RM65’s line inputs as shown.
To use the FX Loop, connect a 1/4” unbalanced cable to the FX Send and to the
Input on your signal processor or effects device . Connect the Output of the signal
processor or effects device to the RM65 FX Return jack. The level of the eff ect will
be controlled by the settings on the channels’ FX Sends and b y the Output Level
of your effects device , The overall level of the effect will be controlled by the FX
Return level on the front of the RM65.
To use the Monitor feature of the RM65, connect the Monitor Out jack to a monitor
amplifier via a 1/4” unbalanced cable. Each channel’s monitor lev el is controlled b y
that channel’s Monitor lev el setting. Be aware that the RM65 has no master
monitor level, so you will need to set the overall monitor level with the monitor
amplifier and the Monitor Levels of each channel.
Connect the Right and Left Main Outputs to the main amplifier(s) and make sure
the amplifier is the correct rating for the speakers. If you are operating in mono,
use either the Right or Left Output.
The RM65 may also be used for recording. Connect microphones, instruments,
and effects to the inputs as described above - the connect the Right and Left
outputs to your recording device and set the levels accordingly.
Figure 1
3 4
CHANNEL 1
MIC
LINE
TRIM
CHANNEL 2
MIC
LINETRIM
CHANNEL 3
MIC
LINETRIM
CHANNEL 4
MIC
LINETRIM
CHANNEL 5
MIC
LINETRIM
CHANNEL 6
MIC
LINETRIM
PHANTOM
POWER
AUX
BUSS IN
FX
SENDFXRETURN
MONITOR
OUT
RIGHT
OUT
LEFT
OUT
MODEL RM65
120 VAC
50/60 Hz 15 VA
SERIAL NUMBER
65-
MADE IN U.S.A.
WARNING
:
DO NOT EXPOSE THIS EQUIPMENT TO RAIN
OR MOISTURE.
CAUTION:
TO REDUCE THE RISK OF ELECTRIC SHOCK DO NOT NOT REMOVE BACK.
NO USER SERVICABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
RISQUE DE CHOC - NE PAS ENLEVER
C US
VOLUME
4 ) %
PWR
CLIP
CLIP
MONITOR AMPLIFIER
WATTS
1 5 30 100
WATTS
1 5 30 100
VOLUME 1
VOLUME 1
PROTECT
0 10 0 10
MAINS AMPLIFIER
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