RDL RU-MX4T 4-Channel Mic/Line Mixer with Output Isolation Transformer

BH #RDRUMX4T • MFR #RU-MX4T
RDL
RDL RU-MX4T 4-Channel Mic/Line Mixer with Output Isolation Transformer
Key Features
  • 4 x Balanced XLR Mic Inputs
  • 5 x Unbalanced RCA Line Inputs
  • 24V Phantom Power
  • Switchable Compressor
The RDL RU-MX4T is a four-channel audio mixer with XLR mic inputs and RCA line inputs. It provides 24V phantom power on a per-channel basis for microphones that require it. Also on hand is a switchable compressor/limiter to keep levels from peaking, if need be. This mixer is useful for combining balanced mic and/or unbalanced line inputs into a single output. The RU-MX4T is suitable for small sound reinforcement, public address systems, or mixer expansion applications.
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Expected availability: 1-3 Business Days
$345.79
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RDL RU-MX4T Overview

  • 1Description
  • 2Four Mic/Line Input Channels
  • 3Flexible Output Section
  • 4Phantom Power

The RDL RU-MX4T is a four-channel audio mixer with XLR mic inputs and RCA line inputs. It provides 24V phantom power on a per-channel basis for microphones that require it. Also on hand is a switchable compressor/limiter to keep levels from peaking, if need be. This mixer is useful for combining balanced mic and/or unbalanced line inputs into a single output. The RU-MX4T is suitable for small sound reinforcement, public address systems, or mixer expansion applications.

You'll note that for outputs, you have the options of an unbalanced RCA and a balanced XLR out. The XLR output itself is switchable between mic or line level. While you can only use one input configuration at a time (either XLR or RCA), you can use both outputs simultaneously. Additionally, the RU-MX4T utilizes a factory-installed output isolation transformer to ensure a low-noise, pristine signal path.

Levels can be adjusted on the front panel, which leaves you enough space to label each input. Each input sports a dual-LED VU meter following standard VU ballistics, with green indicating signal and red to indicate when you go over the correct operating level. The output is displayed on an LED string VU meter. Please note, you must purchase the corresponding PS-24AS power supply separately.

Four Mic/Line Input Channels

Each channel features a balanced XLR mic input and an unbalanced RCA line input. An additional RCA direct input accepts input from another RU-MX4.

Flexible Output Section

The outputs consist of a mic/line selectable XLR channel along with an unbalanced RCA output that may be used for linking multiple mixers.

Phantom Power

A 24V phantom power switch is located below each microphone input. These switches activate the phantom voltage and set the input preamp for the optimum gain range for the type of microphone. An integral high-pass filter rolls off frequencies below 80 Hz.
UPC: 813721013088

RDL RU-MX4T Specs

I/O4 x XLR inputs, balanced
5 x RCA inputs, unbalanced
1 x RCA output, unbalanced
1 x XLR output, balanced
Input LevelBalanced: -58 to -20 dBu (PHANTOM OFF or ON, HI gain); -41 to −4 dBu (PHANTOM ON, LO gain)

Unbalanced: -25 to +20 dBV (+4 dBu output, 10 dBV nominal)
Input ImpedanceBalanced: 2 kOhms
Unbalanced: 2 kOhms
Output Level+4 dBu balanced (switchable to MIC level -45 dBu), -10 dBV unbalanced
Output ImpedanceBalanced: 150 Ohms
Gain AdjustmentMic: Off to 62 dB gain (PHANTOM OFF/ON, HI gain)
Mic: Off to 46 dB gain (PHANTOM ON, LO gain)
Line: Off to 27 dB gain
Frequency ResponseMic: 80 Hz to 30 kHz (± 1.5 dB; -10 dB at 20 Hz with integral high-pass filter)
Line: 20 Hz to 30 kHz (± 0.25 dB)
THD+NMic: < 0.1% (80 Hz to 20 kHz)
Line: < 0.02%
Residual NoiseUnity Gain: < -84 dB (4 Line level sources)
Mic: -79 dB; < -73 dB (All 4 mic level sources, 40 dB Gain, Phantom on)
Mic: -79 dB; < -73 dB (All 4 mic level sources, 50 dB Gain)
Mic: -70 dB; < -64 dB (All 4 mic level sources, 60 dB Gain)
IndicatorsDual-LED VU meter for each input
Power LED
Compression/limiting active LED
Audio mix level meter LED (8 segments, 0 dB = +4 dBu)
Meter BallisticsVU: -20 dB, -10 dB, -6 dB, -2 dB, 0 dB, +3 dB
Peak: +8 dB, +12 dB
Phantom Power24 V, per channel
Power Requirement24 VDC at 150 mA (ground-referenced); power supply available separately
Signal-to-Noise RatioMic: < 0.1% (80 Hz to 20 kHz)
Line: < 0.02%
Phantom Power+24 V
Ambient Operating Environment32 to 122°F / 0 to 50°C
Dimensions (H x L)1.7 x 5.8" / 4.3 x 15.0 cm
Weight1.6 lb / 0.7 kg
Packaging Info
Package Weight1.95 lb
Box Dimensions (LxWxH)6.8 x 6.3 x 2.7"
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