RACK-UP® SERIES
Model RU-MX5ML
Audio Mic/Line Mixer
Mic or Line Level Audio Mixer
Five Channel Audio Mixer with Expansion Capability
Inputs and Outputs on Detachable Terminal Blocks
Switchable 24 V Phantom for Each Mic Input
Balanced Mic and Line Outputs
Expansion Bussing Capability
Output Level dual-LED VU Metering
Studio-Quality, Low-Noise Performance
The RU-MX5ML is part of the group of RDL RACK-UP products. The compact design permits high-density installations, with three products
mounted in a single rack unit. The RU-MX5ML may be used alone, or mounted using a wide variety of RACK-UP series options.
APPLICATION: The RU-MX5ML is the ideal choice in many applications where a combination of
balanced mic and/or balanced or unbalanced line-level signals needs to be mixed with the ability for
additional expansion. All connections are made using detachable terminal blocks on the rear panel.
Four of the RU-MX5ML inputs can accept either mic or line inputs. The fifth input is for line level
sources.
24 V phantom is individually switch selectable for each mic input. The output from one RU-MX5ML
may connect to the MIX input of another RU-MX5ML to expand mixing capabilities. The output
section provides both a balanced line (+4 dBu) and balanced microphone level (-45 dBu) output. Both
outputs may be used at the same time. Audio levels are adjustable on the front panel. The output is
equipped with a front-panel dual-LED VU meter that follows standard VU ballistics. A green LED
illuminates at 15 dB below +4 dBu. The intensity of the green LED progresses from minimum at -11
dBu to full intensity at +4 dBu. The adjacent red LED illuminates at +4 dBu.
Audio levels are adjustable on the front panel. A convenient label area is provided below each fader
knob. A label tab included with the mixer may be professionally labeled using a commercial lettering
machine, or the user may write on the tab. The tab locks into a pocket behind the front panel
laminate to produce a professionally labeled appearance.
The RU-MX5ML operates from ground-referenced 24 Vdc external power, connected through a
rear-panel detachable terminal block.
Wherever a mixer is needed to provide superior audio clarity, user adjustments, reliability,
compactness and unsurpassed versatility, the RU-MX5ML is the ideal choice. Use the RU-MX5ML
individually, or combine it with other RDL products as part of a complete audio/video system.
RDL 659 6th St. Prescott, AZ., USA 86301 (928) 443-9391 FAX (928) 443-9392 www.rdlnet.com
RACK-UP
®
SERIES
Model RU-MX5ML
Audio Mic/Line Mixer
RDL
MADE IN U.S.A.
VDC
PWR
RDL
MADE IN U.S.A.
VDC
PWR
24 VDC
POWER
SOURCE
RU-MX5ML
OUTPUTS
MX24
I
MICLINE
CONNECT TO EXPAND
MIXING TO ANOTHER
RU-MX5ML
RU-MX5ML
OUTPUTS
MX24
I
Installation/Operation
Declaration of Conformity available from rdlnet.com.
Sole EMC specifications provided on product package.
Specifications are subject to change without notice.
CONNECT A MIC OR LINE TO INPUTS 1 THROUGH 4
CONNECT A LINE-LEVEL SOURCE TO INPUT 5
L
SET SWITCH TO "LINE" TO SELECT
MCMP
I
THE LINE-LEVEL SOURCE CONNECTED
N
I
H
E
TO THE LINE INPUT TERMINALS
L
SET SWITCH TO "MIC" TO SELECT
MCMP
I
THE DYNAMIC MICROPHONE CONNECTED
N
I
H
E
TO THE MIC INPUT TERMINALS
L
SET SWITCH TO "PHM" TO SELECT
IIMCMP
THE CONDENSER MICROPHONE CONNECTED
N
H
E
TO THE MIC INPUT TERMINALS
(PROVIDES 24 V PHANTOM TO THE MIC)
L
INPUT 5
LINE
MICLINE
IIMCMP
N
E
LINE MIC MICLINE
OUTPUT WIRING
SIGNAL
FEEDING
BALANCED
EQUIPMENT
L
N
H
E
SIGNAL
FEEDING
UNBALANCED
EQUIPMENT
L
PMCMII
N
H
E
PMCMII
H
MICLINE
INPUT WIRING
SIGNAL
FROM
BALANCED
SOURCE
INPUT 1INPUT 2INPUT 3INPUT 4
L
N
E
PMCMII
H
MICLINE
SIGNAL
FROM
UNBALANCED
SOURCE
CONNECT ONE OR
BOTH OUTPUTS
MIC/LINE IN
1 METER2 3 4 5
MIC/LINE IN MIC/LINE IN MIC/LINE IN LINE OUT
3. SLIDE LABEL STRIP INTO MIXER
LABEL
HERE
LABEL
HERE
LABEL
HERE
1. WRITE OR AFFIX P RINTED LETTERING O N LABEL STRIP
TYPICAL PERFORMANCE
Inputs (6): 4 selectable mic or line level; 1 line level; 1 direct MIX; detachable terminal block
Input Impedance: Mic: >1.2 kΩ balanced; Line: >10 kΩ balanced
Maximum Input Level: Mic: -20 dBu; Line: +24 dBu
Phantom: Switch-selectable 24 V (IEC 61938: 2013)
Gain: Mic: Off to 65 dB; Line: Off to 15 dB
Outputs (2): Mic: -45 dBu balanced; Line: +4 dBu balanced; detachable terminal block
Output Impedance: 150 Ω balanced
Frequency Response: Mic: 80 Hz to 40 kHz (±1 dB, < -6 dB at 20 Hz with integral high-pass filter)
Line: 10 Hz to 35 kHz (± 0.5 dB)
THD+N: Mic: < 0.03%; Line: <0.003%
Headroom: 20 dB (above +4 dBu output)
LINE IN
LEVEL
+4
ADJUST DESIRED INPUT KNOB
LABEL
HERE
FOR BRIGHTEST GREEN LED
LABEL
HERE
WITH MINIMAL FLASHING
OF THE RED LED
2. PEEL OFF ADHESIVE BACKING
Noise: < -70 dB below +4 dBu output
(20 Hz to 20 kHz, all mic channels at 50 dB gain;
or one mic channel active at 60 dB gain)
< -90 dB below +4 dBu (20 Hz to 20 kHz, all channels off)
CMRR: Mic: > -65 dB (10 Hz to 10 kHz); Line: > -45 dB
Metering: Dual-LED VU Meter (calibrated to +4 dBu)
Power Requirement: GROUND-REFERENCED, 24 Vdc @ 75 mA
(120 mA max. including phantom); detachable terminal block
Dimensions: Height: 1.7 in. 4.3 cm; Width: 5. 8 in. 15.0 cm; Depth: 4.8 in. 12.2 cm
Ambient Operating Environment: 0° C to 55° C
Power Requirements: 24 Vdc @ 65 mA, Ground-referenced
891-3320D
Radio Design Labs Technical Support Centers
U.S.A. (800) 933-1780, (928) 778-3554; Fax: (928) 778-3506
Europe [NH Amsterdam] (++31) 20-6238 983; Fax: (++31) 20-6225-287
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