RU-MX5ML - Hand blender RDL - Free user manual and instructions

Product Type	Audio Mic/Line Mixer
Model	RU-MX5ML
Brand	RDL
Number of Channels	5 (4 selectable mic/line + 1 line)
Inputs	Detachable terminal blocks; Mic: >1.2 kΩ balanced, Line: >10 kΩ balanced
Outputs	Balanced mic (-45 dBu) and balanced line (+4 dBu) on detachable terminal blocks
Phantom Power	Switched 24 V per mic input (IEC 61938:2013)
Frequency Response (Mic)	80 Hz to 40 kHz (±1 dB, < -6 dB at 20 Hz with HPF)
Frequency Response (Line)	10 Hz to 35 kHz (+0.5 dB)
THD+N (Mic)	<0.03%
THD+N (Line)	<0.003%
CMRR (Mic)	>65 dB (10 Hz to 10 kHz)
CMRR (Line)	>45 dB
Metering	Dual-LED VU meter calibrated to +4 dBu
Expansion	Bussing capability via direct MIX input for cascading multiple units
Power Supply	24 Vdc @ 75 mA (120 mA max with phantom), ground-referenced, external via terminal block
Dimensions (H x W x D)	1.7 x 5.8 x 4.8 in (4.3 x 15.0 x 12.2 cm)
Weight	0.64 kg (1.4 lb) approx.
Mounting	Rack-mountable (3 units per 1U space using RACK-UP series)
Operating Temperature	0°C to 55°C
Cleaning	Wipe with dry cloth; avoid moisture and solvents
Spare Parts & Repairability	No user-serviceable parts; contact RDL for service

Frequently Asked Questions - RU-MX5ML RDL

How do I connect a microphone to the RU-MX5ML?

Connect a balanced XLR microphone to any of the four selectable mic inputs using the detachable terminal block. Ensure the phantom power is switched on if using a condenser microphone. Use a 3-pin terminal block: pin 1 = ground, pin 2 = hot (+), pin 3 = cold (-).

Can I connect a line-level source to the mic inputs?

Yes, each of the four inputs can be switched between mic and line level. The input impedance is >10 kΩ for line inputs. The fifth input is dedicated for line level only.

How do I enable phantom power for a microphone?

Each mic input has an individual switch on the front panel. Set the switch to the 'ON' position to provide 24 V phantom power. Note: only use phantom power with balanced microphones that require it.

Can I connect multiple RU-MX5ML mixers together?

Yes, the RU-MX5ML features a direct MIX input (detachable terminal block) that allows you to cascade multiple units. Connect the line output of one mixer to the MIX input of another to expand your mixing capabilities.

What does the dual-LED VU meter indicate?

The meter follows standard VU ballistics. The green LED illuminates at -15 dB below +4 dBu and increases intensity up to +4 dBu. The red LED illuminates at +4 dBu, indicating nominal output level. It helps monitor audio levels for optimal headroom.

What power supply does the RU-MX5ML require?

The mixer requires a ground-referenced 24 Vdc external power supply capable of delivering at least 75 mA (120 mA max with phantom). Connect it via the rear-panel detachable terminal block, observing correct polarity.

How do I label the channels?

A label tab is included with the mixer. Write or use a commercial lettering machine to label each channel, then insert the tab into the pocket below each fader knob. This provides a professional appearance.

What is the frequency response for line inputs?

The line input frequency response is 10 Hz to 35 kHz (+0.5 dB), ensuring accurate reproduction of audio across the audible spectrum.

Is the RU-MX5ML compatible with unbalanced sources?

Yes, it can accept balanced or unbalanced line-level signals. For unbalanced connections, tie the cold (-) input to ground at the source. The mixer's inputs are designed to work with both configurations.

How do I clean and maintain the RU-MX5ML?

Disconnect power before cleaning. Wipe the front panel and enclosure with a soft, dry cloth. Do not use liquids, solvents, or abrasive cleaners. Avoid exposure to moisture, dust, and extreme temperatures. No internal maintenance is required; refer to RDL for repairs.

USER MANUAL RU-MX5ML RDL

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.

RACK-UP® SERIES

Model RU-MX5ML

Audio Mic/Line Mixer

Installation/Operation

Declaration of Conformity available from rdlnet.com. Sole EMC specifications provided on product package. Specifications are subject to change without notice.

TYPICAL PERFORMANCE

Inputs (6):

Input Impedance:

Maximum Input Level:

Phantom:

Gain:

Outputs (2):

Output Impedance:

Output Impedance: Frequency Response:

,

THD+N:

Headroom:

4 selectable mic or line level; 1 line level; 1 direct MIX; detachable terminal block

Mic: >1.2 kΩ balanced; Line: >10 kΩ balanced

Mic: -20 dBu; Line: +24 dBu

Switch-selectable 24 V (IEC 61938: 2013)

Mic: Off to 65 dB: Line: Off to 15 dB

Mic: -45 dBu balanced; Line: +4 dBu balanced; detachable terminal block

150 Ω balanced

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)

Mic: < 0.03%: Line: <0.003%

20 dB (above +4 dBu output)

Noise:

CMRR:

Metering:

Power Requirement:

•

Dimensions:

Ambient Operating Environment:

Power Requirements:

<-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)

Mic: > -65 dB (10 Hz to 10 kHz); Line: > -45 dB

Dual-LED VU Meter (calibrated to +4 dBu)

GROUND-REFERENCED. 24 Vdc @ 75 mA

(120 mA max, including phantom); detachable terminal block

Height: 1.7 in. 4.3 cm; Width: 5.8 in. 15.0 cm; Depth: 4.8 in. 12.2 cm

0^ to 55^

24 Vdc @ 65 mA, Ground-referenced