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Beatrice R4 Front and Rear 5 pin XLR BAN Beatrice R4 Front 5 pin XLR BAN Beatrice R4 Rear BAN Beatrice R4 Angle BAN

The Glensound BEATRICE R4 is a robust, 4* channel 1RU rackmount intercom with crystal clear audio designed for broadcast, theatre and professional audio applications.

It is part of our Beatrice intercom system that utilises the reliable and proven Dante network audio transmission protocol to allow real time distribution of uncompressed audio across standard networks. As such the BEATRICE R4 is also fully compatible with other manufacturers’ equipment using the Dante protocol.

The Beatrice R4 is also AES67 compliant.

This small desktop unit was designed to be very easy to use for the operator and simple to set up for the technician. It includes all the basic functionality required for small intercom systems and none of the overly complex installation requirements normally associated with large systems.



* From a maximum of of 2 network locations.

4 Channels 
One single user connected to the unit can listen and communicate with 4* separate locations on the network. Depending upon how the Dante network has been routed, the incoming audio circuits and outgoing circuits can be different locations. 

Dante Routing & Partyline 
Audio routing to/ from other devices is set up using Dante controller which allows for point to multipoint routing on outgoing circuits (but only 1 single incoming circuit for each of the 4 channels). An inbuilt partyline facility allows any of the 4 incoming circuits to be routed to any of the 4 output circuits making both simple partyline and more complex group circuits easily configured.

Onboard Mic & External Mic Input 
A good quality, clear sounding microphone amplifier, designed for communication purposes, is fitted which also has the benefit of a compressor/ limiter circuit to help keep levels and intelligibility consistent even when the operator gets overly excited. This microphone amp has two microphone sources, either the inbuilt front panel mounted electret capsule which provides good voice intelligibility from normal working distances, or a balanced XLR input for connecting external gooseneck microphones. Twelve Volt Phantom power is also available and can be turned on/ off as required.

Intelligible Loudspeaker
What’s the point of an intercom unit if the onboard speaker is so cheap that you can’t understand what is being said to you? We tried hundreds of different drive units before settling on the one used in the Beatrice R4.We chose it because it had a much cleaner sound and better frequency response for vocals than any other speaker on the market that would fit in a 1RU subrack.

Volume, Panning & Incoming Levels 
The front panel features an easy to use volume/ setup control. This multifunctional control provides day to day operational control of: 
A) Overall volume control (just turn the knob) 
B) Incoming channel level (push the speak key and turn the knob simultaneously) 
C) Panning (push the speak key and push and turn the knob simultaneously).

Mains or PoE Powered 
An inbuilt wide range switch mode mains power supply is fitted for powering the Beatrice R4. It is terminated with a standard IEC plug, making it easy to plug in wherever you are in the World. It can also be powered via the Ethernet cable by standard PoE (Power over Ethernet), which can be supplied by an external PoE switch or a midspan power injector.

Headphone Output 
One of our unique headphone amplifiers is fitted to the Beatrice R4.  These allow either low or high impedance headphones to be used and automatically adjust the output level to match the impedance of headphones in use. The headphone amplifier is stereo and sources can be panned to left or right ears as desired. The unique headphone amplifier can also drive mono earpieces from its stereo output without any performance issues. Headphone connection is via a standard 6.35mm TRS jack socket located out of the way on the rear panel.

Headset Connector
If you prefer an intercom headset with a single XLR connector for microphone and headphones, then fitted as standard is a 5 pin female XLR headset connector. The microphone input on this headset connector is in parallel with the 3 pin XLR and the headphone output is in parallel with the 6.35mm TRS jack.
A 4 pin male XLR can be fitted to special order instead of the 5 pin female headset connector.

Call Function 
A simple call function is inbuilt allowing the operator of one unit to call/alert other users that they want to communicate with them. To call another user the operator double taps the speak key of the channel they want to call.  This then flashes a bright yellow call LED on the other user's keypanel, which continues to flash until the call is answered. As well as flashing a LED at the receiving end of the call, an audible ‘beep’ can be set to alert the user that an incoming call has been placed to them.

Display for Setup 
To make setup of the unit easy and intuitive, a display is provided on the front panels. This display provides a simple menu system for setting up such items as: Button Configuration, Input Type (Mic/ Line), Microphone Gain, Phantom Power On/ Off, Sidetone Level (own voice in own headphones), Partyline/ Loop Through, Mode Mixing/ Cutting of Partyline when User Speaks.

Presence Indicator 
Each channel has its own red LED that acts as a presence detector on the incoming audio circuit. When audio is detected the LED is lit and it stays lit for a short period after the incoming audio stops.

Built to Last
The Beatrice R4 is manufactured using lightweight but strong custom designed aluminium extrusions for the front and side panels and lightweight but strong extruded aluminium sheet for the lid and base. Front and rear panels are anodised and laser etched, and side panels and lid/ base are powder coated in an aesthetically pleasing textured black powder coat.

This device uses Audinate’s Ultimo Chipset.This chipset can receive 4 incoming audio channels each at 48kHz. However this chipset can only receive these 4 audio channels from a maximum of 2 network locations. 


Physical Interface: 1 of RJ45 Neutrik Ethercon
Audio Sample Frequency: 48kS/s
Transfer Rate: 100Mbps
Dante Chipset: Ultimo UXT-01-004 (Note: Audinate recommends no more than 10 Ultimo chipsets on one network UNLESS another Dante device such as the Brooklyn Module (found in 8 channel Beatrice/ Dark units), is on the same network)
AES67 Compliant: The Audinate Ultimo chipset used is AES67 compliant 


Mic Gain Range: +60 to +20dB 
Line Input Gain Range: +10 to -20dB
Phantom Power: 12 Volts 
Equivalent Input Noise: -110dB (20Hz to 20kHz A weighted 300 Ohms)
Headphone Impedance: 32 - 1000 Ohms
Max Headphone Output Level: +10dB into 600 Ohms 
Headphone Connector: 6.35mm (1/4") TRS socket, can be safely connected to TS mono jack plug
Band Pass Filter: 50Hz to 15kHz
Loudspeaker Drive Unit: 8cm (3.3") full range, high efficiency, 10 watt, 130 to 20000Hz 


Inband Calling Frequency: 20kHz
Amplitude: -20dBFs
Duration Of Signal: 2 seconds
Compatibility: All Glensound Beatrice units and Studio Technologies


Mains Voltage: 100 to 240 VAC +/-10%
Mains Frequency: 50 to 60Hz
Power Over Ethernet (PoE): 48 Volts
Consumption: 8 Watts
Redundancy: Mains and PoE are dioded together for glitch free redundancy


Mechanics: All aluminium with laser etched anodised panels and light textured black powder coated sides & lid/ base
Size: 19", 1RU, 164mm deep
Weight: 1.5Kg (3.3lb)
Shipping Weight: 3.5Kg
Shipping Size: 61 x 42 x 12cms
Shipping Carton: Rugged export quality cardboard carton


Operating Temperature: 0 to +50°C (32 to 122°F)
Storage Temperature: -20 to +70°C (-4 to 158°F)
Relative Humidity: 0 to 95% non-condensing


Handbook: Physical A5 (Download .pdf also available)
Network Cable: 2 meter RJ45 to RJ45 cable

As standard the Beatrice R4 is supplied with a 3 pin XLR/ 6.35mm Jack AND a 5 pin XLR headset interface.

It can, however, be ordered with a 4 pin headset interface instead.

Part numbers are:

Beatrice R4 /4M (4 Pin XLR male headset plug)

Beatrice R4/5F (5 Pin XLR female headset socket)

Wiring for the headset interfaces is to common standards as detailed below.  It may be possible to provide other custom wiring configurations if required, please email with your requirements.

Beatrice R4 Headset Option Wiring Info

Connector type: 5 Pin XLR Socket (female XLR fitted, suitable for mating with cable mounted male)

PIN 1: Mic -
PIN 2: Mic +
PIN 4: Headphone Left
PIN 5: Headphone Right

Beatrice R4/4M Wiring Info

Connector type: 4 Pin XLR Plug (male XLR fitted, suitable for mating with cable mounted female)

PIN 1: Mic - (Mic GND)
PIN 2: Mic +
PIN 3: Headphone GND
PIN 4: Headphone +

Please read the manual for installation instructions.

When the Beatrice unit is first turned on, the display will briefly show the currently installed firmware version. 

The latest Version of the Firmware is v1.8.6

The download location of this file is:

Audinate Dante® Firmware

As well as the above firmware the Beatrice unit is fitted with an Audinate Ultimo chipset to provide its Dante® audio network interface. We supply special code (a .dnt file) that sets up and makes the chipset work in a way that is compatible with the Beatrice unit.

The latest Version of the Ultimo code is v4.2.2.3

The download location of this file is: X4_v1.0.2_Dante_v4.2.2.3.dnt


Please note: Copy and paste the above addresses into your browser to download the files. You may see 'page not found'. This is because the above addresses are the locations of the files and there is no web page at that address.

Please use one of the following methods to contact us:

Telephone: 01622 753662
International: +44 1622 753662
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