RB-MS4X3

Quad 3 Way Passive Microphone Splitter

The RB-MS4X3 is a passive, quad, “one-to-three” splitter housed in a 19” rack.

RB-MS4X3

Quad 3 Way Passive Microphone Splitter

The RB-MS4X3 is a passive, quad, “one-to-three” splitter housed in a 19” rack. Each bank is designed to split a single microphone or line source to up to three destinations, using Neutrik XLR connectors. Cable connections are located on the rear panel, with recessed controls and indicators available to the user on the front panel, allowing quick and easy access to setup parameters.

Wide Signal Range Capability

The RB-MS4X3 uses high quality audio transformers that are capable of accepting input levels of up to +18dBu, making the splitter useful in both microphone and line level splitting applications. A 30dB pad can be applied to the input, allowing a line level signal to be interfaced into a microphone input with suitable levels and the correct termination.

Versatile Phantom Powering Options

The RB-MS4X3 offers three methods of providing phantom power to a microphone connected to its input:

  • From the external +48VDC power connector.
  • From a microphone amplifier connected to output 1 (direct).
  • From a microphone amplifier connected to output 2 (phantom loopback).

Controlling which method is used to provide phantom power is easy with front panel switches and indicators. It is possible to concurrently power a microphone using any two of the above methods without degrading audio performance, thus providing power supply redundancy.

Ground Loop Hum Elimination

Ground loop hum problems can be quickly eliminated using the front panel toggle switches to lift pin 1 of the output connectors (output 2 and 3 only).

Product Features

  • 4x 3-way mic splitter.

  • Balanced XLRs.

  • Passive transformer design.

  • Ground lift switches.

  • External or looped phantom power inputs.

  • Line level -30dB pad.

Typical Applications

To share microphones between radio/TV/production studios.

Product Category

Passive Splitters

Test

Frequency Response10Hz - 30kHz ±0.5dB
Frequency Response (Conditions)• Ref. -6dBu, 1kHz ±0.5dB
Frequency Response (Conditions)• Source impedance = 150Ω
Frequency Response (Conditions)• Load impedance = 10kΩ
Total Harmonic Distortion0.02%
Total Harmonic Distortion (Conditions)• Ref. +3dBu, 50Hz
Total Harmonic Distortion (Conditions)• Source impedance = 150Ω
Total Harmonic Distortion (Conditions)• Load impedance = 10kΩ
Total Harmonic Distortion 0.1%+13dBu
Total Harmonic Distortion 0.1% (Conditions)• Ref. 0.1%THD+N, 50Hz
Total Harmonic Distortion 0.1% (Conditions)• Source impedance = 150Ω
Total Harmonic Distortion 0.1% (Conditions)• Load impedance = 10kΩ
Total Harmonic Distortion 1%+18dBu
Total Harmonic Distortion 1% (Conditions)• Ref. 1%THD+N, 50Hz
Total Harmonic Distortion 1% (Conditions)• Source impedance = 150Ω
Total Harmonic Distortion 1% (Conditions)• Load impedance = 10kΩ
Common Mode Rejection Ratio>60dB
Common Mode Rejection Ratio (Conditions)• Ref. 20kHz
Common Mode Rejection Ratio (Conditions)• Source impedance = 600Ω
Common Mode Rejection Ratio (Conditions)• Load impedance = 10kΩ
 

Connections

Inputs:4 x XLR 3 pin female
Outputs:12 x XLR 3 pin male
DC Phantom Power Input:+48V DC, 2.5mm socket
 

Equipment Type

RB-MS4X3Quad 3 way microphone splitter.
 

Physical Specification

Dimensions (Raw):48cm (W) x 10.8cm (D) x 4.2cm (H)(1U)
Dimensions (Raw):19” (W) x 4.3” (D) x 1.7” (H) (1U)
Dimensions (Boxed):58.5cm (W) x 22.5cm (D) x 7cm (H)
Dimensions (Boxed):23” (W) x 8.9” (D) x 2.8” (H)
Weight:Nett: 1.5kg  Gross: 1.9kg
Weight:Nett: 3.3lbs Gross: 4.2lbs
 

Handbooks & Guides

RB-MS4X3 Handbook[Download]

Brochures

Click to visit the brochures page.

Declarations

Click to visit the declarations page.

Firmware

Firmware Notes