RDL RU-MLD4 Käyttöohje

RDL Vastaanotin RU-MLD4

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RACK-UP® SERIES
Models RU-MLD4 & RU-MLD4T
Mic/Line Distribution Amp
Distribution Amplifier with Four Outputs
Front Panel XLR Input / Output Jacks
Detachable Input / Output Terminal Blocks
Switch-selectable Mic or Line Input
Switch-selectable Mic Gain and Phantom
Gain-Trim on Input
Each Output Switch-selectable Mic or Line
The RU-MLD4 is part of the group of RACK-UP products from Radio Design Labs. RACK-UPs feature the advanced circuitry for which RDL
products are known, combined with accessible user-friendly controls and displays. The ultra compact design permits high-density installations,
with three products mounted in a single rack unit. Optional brackets permit mounting a RACK-UP module above, below, or in front of any flat
surface!
APPLICATION: The RU-MLD4 is an audio distribution amplifier with four outputs. The input and all four
outputs may be connected through the front-panel XLR jacks or on the rear panel detachable terminal
blocks. The input accepts either a balanced microphone or line level signal. Each of the four outputs
provides either a microphone or line level signal. Both the front-panel XLR connectors and the rear-panel
terminals are active at all times.
The audio input is equipped with a rear-panel switch to select between MIC and LINE level. Two additional
switches allow setting the MIC input for LO or HI gain and for enabling or disabling standard 24 Vdc
phantom. The two microphone gain settings allow the connection of a wide variety of dynamic and
condenser microphones. Each output is provided with a separate rear-panel switch to set the associated
level to either MIC or LINE. Audio outputs are isolated from each other and may be wired balanced or
unbalanced.
Gain trim is provided on a front-panel control. An RDL Dual-led VU meter is provided above the gain
trimmer. The meter is calibrated to indicate +4 dBu for outputs set to line level.
The rear panel provides a detachable terminal block and a power input jack to connect 24 Vdc power. The
RU-MLD4 audio outputs are active balanced. Each output of the RU-MLD4T is equipped with a
studio-quality audio output transformer.
Wherever 1 in by 4 out connectorized mic and line level audio distribution with gain trim is needed to
provide superior audio clarity, user adjustments, reliability, compactness and unsurpassed versatility, the
RU-MLD4 is the ideal choice. Use the RU-MLD4 combined with other RDL RACK-UP, STICK-ON, TX™,
or FLAT-PAK™ series 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-MLD4
Mic/Line Distribution Amp
GAIN
+4
LEVEL
TURN PHANTOM ON FOR CONDENSER, OFF FOR DYNAMIC
SET EACH OUTPUT SWITCH TO MIC OR LINE LEVEL
SET GAIN FOR MIC INPUT
SET INPUT FOR
MIC OR LINE LEVEL
CONNECT 24 VDC POWER TO
TERMINAL BLOCK OR JACK
FOR CORRECT
SET INPUT GAIN
LEVEL ON DUAL-LED
METER
OCCASIONALLY
AND RED FLASHING
LEVEL IS CORRECT
WITH GREEN BRIGHT
CONNECT MIC OR LINE INPUT TO FRONT OR REAR
CONNECT MIC OR LINE OUTPUTS TO FRONT OR REAR
UNBALANCED WIRING
INPUT
OUTPUT
PHMGAIN
RDL
MADE IN U.S.A.
RU-MLD4
24 VDCINPUT
O
NF
O
F
L
O I
H
L = LINE
M = MIC
OUTPUT 1OUTPUT 2
C
M
II
L
N
OUTPUT 4 OUTPUT 3
L M L M MLL M
MIC/LINE
GAIN
+4
LEVEL
INPUT
MIC/LINE
OUTPUT 1
MIC/LINE
OUTPUT 2
MIC/LINE
OUTPUT 3
MIC/LINE
OUTPUT 4
MLD4 MLD4T
TYPICAL PERFORMANCE
Input: XLR (3 pin, front panel) and detachable terminal block (rear panel)
Input level (for +4 dBu output): Switch-selectable (rear panel) MIC (LO or gain) or HI LINE
Mic: -48 dBu to -3 dBu (LO GAIN); -65 dBu to -20 dBu (HI GAIN)
Line: -15 dBu to +28 dBu
Input Impedance:
Mic: 2 kbalanced, switchable 24 V phantom (IEC 61938: 2013)
Line: > 10 kbalanced; may be connected unbalanced
Outputs (4): XLR (3 pin, front panel) and detachable terminal block (rear panel)
Output level: Switch-selectable (rear panel) MIC (-46 dBu) or LINE (+4 dBu)
Output Impedance: 150 balanced; drives high or low impedance lines
Gain Trim: Front panel adjustable; one for each channel
Mic LO GAIN: Off to 52 dB gain
Mic HI GAIN: Off to 69 dB gain
Line: Off to 20 dB gain
Frequency Response:
Mic: 80 Hz to 50 kHz (+/- 0.75 dB); < 10 dB @ 20 Hz (integral high-pass filter)
Line: 15 Hz to 50 kHz (+/- 0.1 dB)
THD+N:
Mic: < 0.1% (80 Hz to 20 kHz)
Line: < 0.005%
CMRR: > 60 dB (Mic); > 50 dB (Line)
Residual Noise
(below +4 dBu LINE output or -45 dBu MIC output):
Mic 40dB Gain, LO GAIN: -79 dB (20 Hz to 20 kHz)
Mic 50dB Gain, HI GAIN: -79 dB (20 Hz to 20 kHz)
Mic 60dB Gain, HI GAIN: -70 dB (20 Hz to 20 kHz)
Line: -85 dB (20 Hz to 20 kHz)
Headroom (above +4 dBu LINE output): > 20 dB
Power Requirement: 24 Vdc @ 90 mA, Ground-referenced
Declaration of Conformity available from rdlnet.com.
Sole EMC specifications provided on product package.
Specifications are subject to change without notice.
Installation/Operation
891-3225G
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

Tuotetiedot

Merkki: RDL
Kategoria: Vastaanotin
Malli: RU-MLD4

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