APEX Belux - Broadcast - Sonifex

RB-ADDA
Combined A/D and D/A unit (24 bit, 96kHz capable) (1U)

The RB-ADDA A/D and D/A converter is a 1U rack-mount which produces an AES/EBU or S/PDIF level digital audio output from a balanced XLR or unbalanced phono stereo audio input. It also produces a stereo balanced XLR or unbalanced phono output from an incoming AES/EBU or S/PDIF digital input signal.

RB-ADDA2
Combined A to D to A converter 24 bit 192kHz

The RB-ADDA2 A/D and D/A converter is a 1U rack-mount which produces an AES/EBU, S/PDIF or TOSlink optical level digital audio output from a balanced XLR or unbalanced phono stereo audio input. It also produces a stereo balanced XLR or unbalanced phono output from an incoming AES/EBU, S/PDIF or TOSlink optical digital input signal.

RB-SC1
Sample rate converter (24 bit, 96kHz capable)

Ideal for the transfer of digital audio between different digital equipment, the RB-SC1 sample rate converter standardises the sample rate of a digital audio signal to one of 32kHz, 44.1kHz, 48kHz, 64kHz, 88.2kHz or 96kHz, or to a synchronising input.

RB-SC2
Dual Sample rate converter (24 bit, 96kHz capable)

RB-DAC1
Digital to analogue converter

Using 24 bit, 96kHz capable devices, the RB-DAC1 D/A Converter is a 1U rack-mount which produces a stereo balanced XLR or unbalanced phono output from an incoming AES/EBU or S/PDIF digital input signal. There is also a headphone output with volume control for monitoring purposes.

RB-DS2
Stereo audio delay synchroniser & time-zone delay

The RB-DS2 is a stereo audio delay synchroniser used for resynchronising audio to video following delay processes such as standards conversion, transmission delay, logo insertion, video aspect ratio conversion and network delays. It can be used for fixed installations to correct a permanent audio delay, or on an intermittent basis to provide occasional correction, for example for live links. Accepting digital audio signals up to 96kHz, 24 bit, the sonic quality of the RB-DS2 is superb and silent switching is used to provide the smoothest, cleanest audio delay available.

RB-SD1
Silence Detection Unit

The RB-SD1 Silence Detection Unit is used to monitor an unattended stereo studio feed and in the event of the signal going 'quiet' after a given period the unit will switch through an alternative stereo audio signal. This signal could be a recorded message (e.g. normal service will be resumed. etc), a feed from a CD player or MiniDisk machine, or an alternative recorded program. Controls are provided to start external equipment and to provide remote status indication. The RB-SD1 has a passive signal path so that it will still allow a signal to be transmitted in the event of a power failure.

RB-DS2R
Remote Switch Panel for RB-DS2

RB-PD2
Stereo Profanity Delay

RB-SP1
Digital AES/EBU splitter & combiner unit

The RB-SP1 Digital Splitter & Combiner is a 1U rack-mount unit used to interface various double sampling pieces of equipment. Some older equipment uses 2 AES/EBU connectors for double sampling with each connector carrying an audio signal at a normal frame rate, whilst other equipment has a single connector using twice the frame rate. The RB-SP1 can interface between them, either combining the signals from 2 XLR's into 1, or splitting the signal from 1 XLR into 2.

RB-SYA
Analogue Video Sync board for rb-sc2

RB-SYD
Digital Video Sync board for rb-sc2

RB-PA2
Dual stereo RIAA phono amplifier

The RB-PA2 is a dual stereo RIAA equalised phono amplifier. This record player preamp amplifies the small signal from your pick up cartridge (either moving magnet or high output moving coil magnetic) and provides the necessary RIAA equalisation required for vinyl records, to match it to a line input of your mixer, or amplifier. It uses a clean RIAA response making it ideal for use with broadcast turntables and DJ decks and where vinyl records are being archived to CD for high quality transfers, or for converting albums to mp3.

RB-UL1
Unbalanced to balanced single converter

The RB-UL1 is a single stereo unit for interfacing domestic, or semi-pro unbalanced equipment to professional balanced line levels.

RB-UL2
Unbalanced to balanced dual converter

The RB-UL2 is a dual stereo unit for interfacing domestic, or semi-pro unbalanced equipment to professional balanced line levels.

RB-UL4
Unbalanced to balanced quad converter (1U)

The RB-UL4 is a 1U rack-mount quad stereo unit for interfacing domestic, or semi-pro unbalanced equipment to professional balanced line levels. The eight RCA unbalanced inputs have an impedance of 10k ohms and are routed to four balanced XLR-3 outputs with an output impedance of <50 ohms. The output gain can be individually adjusted for left and right channels by using pre-set potentiometers accessible through the rear panel.

RB-LU4
Balanced to unbalanced quad stereo matching converter (1U)

The RB-LU4 is a 1U rack-mount quad stereo unit for interfacing professional balanced line levels to domestic or semi-pro unbalanced equipment, e.g. for connecting a pro satellite receiver to a consumer hi-fi system. All connections are on the rear panel. The eight balanced XLR-3 inputs have an impedance of 20 kohms and are routed to eight unbalanced RCA outputs with an output impedance of <50 ohms. The output gain can be individually adjusted for left and right channels by using pre-set potentiometers accessible through the rear panel. A LED power indicator on the front panel displays the power supply connection.

RB-BL2
Bi-directional stereo matching converter

The RB-BL2 is a bi-directional stereo unit for interfacing domestic, or semi-pro unbalanced equipment to professional balanced line levels, and vice-versa. All connections are on the rear panel. The two XLR-3 electronically balanced inputs have an impedance of 20k ohms bridging and are routed to two unbalanced RCA (phono) outputs with an output impedance of <50 ohms. The two RCA unbalanced inputs have an impedance of 10k ohms and are routed to two balanced XLR-3 outputs with an output impedance of <50 ohms. The output gain can be individually adjusted for left and right channels by using pre-set potentiometers accessible through the rear panel.

RB-BL4
Dual stereo bi-directional matching converter

The RB-BL4 is a dual bi-directional stereo unit for interfacing domestic or semi-pro unbalanced equipment to professional balanced line levels, and vice versa. The four XLR-3 electronically balanced inputs have an impedance of 20 kohms bridging and are routed to four unbalanced RCA (phono) outputs with an output impedance of <50 ohms. The four RCA unbalanced inputs have an impedance of 20 kohms and are routed to four balanced XLR-3 outputs with an output impedance of <50 ohms. All connections are on the rear panel. The output gain can be adjusted for left and right channels by using pre-set potentiometers accessible through the rear panel.

RB-LI2
Stereo line isolation unit

The RB-LI2 stereo line isolation unit is used to isolate audio signals from inter area ground hum loops, which could be caused by equipment being powered by different mains power supplies, or different phases on the same supply. The input and output are connected together through a transformer, which has internal jumpers allowing the outputs to be balanced about ground.

RB-PLI6
6 way mono passive line isolation unit

The RB-PLI6 Passive Line Isolation Unit is used to isolate audio signals from inter-area ground hum loops, which could be caused by equipment being powered by different mains power supplies or phases on the same supply. The input and output are connected together through a transformer, and the unit has internal jumpers allowing the inputs and/or outputs to be balanced about ground. The unit requires no mains power for operation.

RB-DA6
6 way stereo, 2x6 way mono, or 1x12 way mono distribution amplifier (1U)

The RB-DA6 is a 1U rack-mount high performance 6 way stereo distribution amplifier for splitting a source into a number of different outputs. The RB-DA6 has 1 stereo input and 6 stereo outputs. It can also be configured so that 1 mono input can be distributed to 12 outputs by use of a switch which is recessed on the front panel to prevent it being accidentally knocked. The XLR-3 inputs and outputs are electronically balanced and can be wired unbalanced. Each output is individually buffered so that a short circuit on one output won't affect the others. The left and right input gain controls (normalising) are pre-set potentiometers accessible through the front panel. The output gain may be varied from -8dB to 18dB which is useful for normalising consumer and professional signals to give outputs of -15dBu and 0dBu respectively.

RB-DA6G
6 way stereo distribution amp with output gain control (1U)

The RB-DA6G is a 1U rack-mount high performance 6 way stereo distribution amplifier for splitting a source into a number of different outputs. It is identical to the RB-DA6 with the addition of individual output gain adjustment, instead of global stereo gain adjustment. The RB-DA6G has 1 stereo input and 6 stereo outputs. It can also be configured so that 1 mono input can be distributed to 12 outputs by use of a switch which is recessed on the front panel to prevent it being accidentally knocked. The XLR-3 inputs and outputs are electronically balanced and can be wired unbalanced. Each output is individually buffered so that a short circuit on one output won't affect the others. The twelve output gain controls (normalising) are pre-set potentiometers accessible through the front panel. The output gain may be varied from -8dB to 18dB which is useful for normalising consumer and professional signals to give outputs of -15dBu and 0dBu respectively.

RB-DA6P
6 way stereo distribution amp with phoenix connectors

RB-DA6R
6 way stereo distribution amp with RJ45 outputs

RB-DA6RG
6 way stereo distribution amp RJ45 output with gain control

RBDA4x5
4 Input, 4x5 output distribution amplifier/mixer (1U)

The RB-DA4x5 is a 1U rack-mount combined distribution amplifier and mixer. It has 4 mono analogue audio inputs on female XLR and 4 groups of 5 outputs on 15 way D-type connectors. Each output group has a five way front-panel DIP switch assigned to it which is used to select the input(s) to send to the output group. This enables each of the four inputs, or a 1kHz 0dBu tone, to be mixed to the output group.

RB-DDA6A
6 way AES/EBU digital distribution amplifier (24 bit, 96kHz capable)

The RB-DDA6A digital distribution amplifier is used for distributing digital audio data in AES/EBU format, repeating both the audio data and the status information of the input whilst re-normalising to standard digital audio levels. It has a single XLR-3 female AES/EBU audio input which is distributed to 6 XLR-3 male AES/EBU outputs. Applications include distributing audio from a digital mixing desk to multiple digital recorders, or feeding multiple studios with an output from a DAT machine. It can accept input sample rates in the range of 30kHz - 100kHz, and bit rates of 16, 20 and 24 bit. So, it can be used for standard CD signal distribution at 16 bit 44.1kHz, as well as for high quality 24 bit 96kHz recording.

RB-DDA6S
6 way S/PDIF digital distribution amplifier (24 bit, 96kHz capable)

The RB-DDA6S digital distribution amplifier is similar to the RB-DDA6A except that it is used for distributing digital audio data in S/PDIF format. It has a single S/PDIF audio input which is distributed to 6 S/PDIF audio outputs at the same level and condition as the input signal. It can accept input sample rates in the range of 30kHz - 100kHz, and bit rates of 16, 20 and 24 bit. Uses include audio distribution at 16 bit 44.1kHz from a consumer CD player to multiple digital recorders, distribution of high quality 24 bit 96kHz signals from digital mixing desks to recorders and connection of the output of, say, a DVD player to multiple studios.

RB-DDA6W
6 way word clock digital distribution amplifier

The RB-DDA6W Word Clock Distribution Amplifier distributes a wordclock BNC input signal to 6 word clock BNC outputs re-conditioned. It is used to distribute reference clocks for digital audio systems. It has a single female BNC audio input which is distributed to 6 female BNC outputs. The units primary application is to distribute a master TTL word clock source to multiple pieces of equipment that need to be synchronised from the master.

RB-DDA22
Digital Audio Distribution Amplifier With Multiple Outputs

RB-SS10
10 way stereo analogue source selector/mixer

The RB-SS10 10 Way Stereo Analogue Source Selector/Mixer is a 1U rack-mount unit that produces a stereo analogue audio output from 10 selectable stereo analogue sources. There are 10 illuminated front panel push buttons, which select and indicate the current channel selection. The selection and indication is also available through a remote connector on the rear panel. To stop accidental front panel selection there is a remote input to inhibit the front panel buttons.

RB-DSS10
10 way stereo digital source selector

The RB-DSS10 Digital Source Selector is a 1U rack-mount which produces an AES/EBU and S/PDIF level digital audio output from 10 selectable AES/EBU or S/PDIF digital input signals. There are 10 illuminated front panel push buttons, which select and indicate the current channel selection. The selection and indication is also available through a remote connector on the rear panel. To stop accidental front panel selection there is a remote input to inhibit the front panel buttons. The digital receivers in this unit are fully 24 bit, 96kHz capable. When an input is selected from the front panel, or remotely, the unit will attempt to capture the incoming signal on either the AES/EBU or the S/PDIF signal inputs, with priority given to the AES/EBU input. If the AES/EBU signal becomes locked while the S/PDIF signal is routed, the unit will automatically switch to the incoming AES/EBU signal.

RB-PMX4
10 input, 4 output analogue preset mixer (1U)

The RB-PMX4 is a high performance 10 mono input to 4 mono output preset mixer. Each of the four outputs has a 10 way DIP switch associated with it to select which of the 10 inputs are routed to it. So, by altering the DIP switches, any of the input sources can be mixed to any of the outputs. The DIP switches are enclosed by a screw-on cover on the front panel so that the settings can not be accidently changed for secure applications. The RB-PMX4 has been designed for situations where a small mixer is needed for installations where it will be configured and then only altered occasionally, or never altered.

RB-SSML1
Mic/Line Source Selector with compressor / limiter

RB-HD1
Single headphone amplifier (1U)

The RB-HD1 is a 1U rack-mount stereo headphone amplifier for driving up to two pairs of professional stereo headphones from a single stereo or mono input. One headphone socket is on the front panel with one on the rear. The main stereo input is from electronically balanced XLR-3 connectors on the rear panel, which can be wired un-balanced. The output volume for the headphones can be controlled either by a pot situated on the front panel or a VCA signal supplied externally via the remote connector. This option is controlled by the Local/Remotes Control on the rear panel. A mono input can be mixed into the main headphone feed, for example, for mixing in talkback to the headphones. This has an input level control via a recessed adjustable potentiometer. The mono mix input can also be controlled remotely. The stereo/mono switch is recessed on the rear panel to prevent accidental knocking. An LED power indicator on the front panel displays the power supply connection.

RB-HD2
Dual stereo headphone amplifier (1U)

The RB-HD2 is a high performance 2-way stereo headphone distribution amplifier for driving up to 2 pairs of professional stereo headphones from a single stereo or mono input. A switch on the rear panel enables the distribution of a mono signal to all four outputs (i.e. both earpieces of a pair of stereo headphones) via the left channel input. The stereo/mono switch is located on the rear panel to prevent accidental knocking. The XLR-3 inputs are electronically balanced and can be wired unbalanced. There are two preset controls on the rear panel that adjust the level of the master input signal to the outputs. Each output is on a 1/4" stereo jack socket and is designed to drive 150 mW into 32 ohm to 600 ohm stereo headphones. The outputs are individually buffered with their own front panel volume control. A LED power indicator on the front panel displays the power supply connection.

RB-HD6
6 way headphone amplifier with insert points (1U)

The RB-HD6 headphone distribution amplifier is a 1U rack-mount which distributes stereo audio to up to 6 different sets of headphones, or can be used as 6 independent headphone amplifiers, each with their own input and volume control. A typical application might be to provide common headphone feeds for guests in a radio studio, with a separately derived feed, perhaps including talk-back, for the presenter.

RB-DHD6
Digital 6 way headphone distribution amplifier

The RB-DHD6 digital 6 way headphone distribution amplifier is a 1U rack-mount which receives a digital input signal, as either AES/EBU or S/PDIF and converts it to 6 individually buffered, jack-plug, headphone outputs, each with their own volume control. Useful for connection to digital mixing desks, digital routers and matrices, the RB-DHD6 connects directly to an AES/EBU or S/PDIF output to provide the highest quality audio directly to the headphones.

RB-MA1
Microphone amplifier, single

The RB-MA1 consists of a low noise microphone pre-amplifier for converting mic level signals to line level, or for driving long lines from microphones to mixing equipment. The connections and controls are on the rear panel. The microphone input is an XLR-3 type and is electronically balanced. The gain for the input can be adjusted by a recessed pre-set potentiometer which allows for the use of both dynamic and powered microphones.

RB-MA2
Microphone amplifier, dual

The RB-MA2 consists of two independent low-noise microphone pre-amplifiers for converting mic level signals to line level, or for driving long lines from microphones to mixing equipment. All connections and controls are on the rear panel. The microphone inputs are XLR-3 type and are electronically balanced. The input gain for each input can be adjusted individually by a recessed pre-set potentiometer which allows for the use of both dynamic and powered microphones.

RB-ML2
Stereo microphone & line level limiter

The RB-ML2 is a stereo microphone and line level limiter. The unit is mainly used where assistance with level control is required, for protection of mixer inputs and to prevent distortion. Ideal for news-booths, and the input to PC workstations, it provides an economical level control solution. The RB-ML2 has two electronically balanced XLR-3 inputs, which are routed to a line amplifier, or microphone amplifier, via a rear push-button. The microphone amplifiers have independent pre-set gain controls, and DIP switches for a high pass filter (low frequency roll-off at 125kHz) and phantom power to provide +48V to the connected microphones.

RB-MM1
Mix-minus generator

Whenever programming originates from outside of the studio, or if listeners/viewers are calling up a phone-in using telephone hybrids or codecs, mix-minus feeds are required. Most telephone lines incur delays which prohibit off-air monitoring, because the caller, or remote talent, would hear their own voice in delay which is very disconcerting. The solution is to feed a mix back to the caller minus his or her own voice. Some mixing desks do not have a dedicated telco channel to generate a clean-feed, or mix minus, so the RB-MM1 can be used. The RB-MM1 is a unit for generating a suitable mix to send to a telephone hybrid or codec. A stereo output is taken from a mixer, together with a post fader output from the mono telephone fader on the mixer. The caller audio is removed from the station output so that it can be sent to the telephone line via the hybrid.

RB-DMA2
Dual digital microphone amplifier

The RB-DMA2 consists of two independent low-noise microphone pre-amplifiers for converting microphone level signals to a digital AES/EBU or S/PDIF output. Individual analogue balanced line level outputs are also produced for use, for example, to feed talkback systems. The unit can either be used as two independent microphone amplifiers, or one mic input can be copied to both channels of the digital output.

RB-SM1
Stereo to mono converter, single

The RB-SM1 consists of a converter which will produce a fully buffered and balanced mono line output from a single stereo input. All connections are on the rear panel. The XLR-3 input is electronically balanced with an impedance of 20kohm bridging. It can be wired unbalanced to accept an output from domestic equipment. The XLR-3 line output is electronically balanced with an output impedance of <50 ohm. The output can be wired unbalanced by grounding the non-phase signal, allowing you to feed balanced and unbalanced equipment. Output gain adjustment using pre-set potentiometers allows a normalised mono output from domestic stereo equipment. The potentiometers are accessible through the rear panel.

RB-SM2
Stereo to mono converter, dual

The RB-SM2 consists of two independent converters which will produce two fully buffered and balanced mono line outputs from two stereo inputs. All connections are on the rear panel. The XLR-3 inputs are electronically balanced with an impedance of 20kohm bridging. These can be wired unbalanced to accept an output from domestic equipment. The XLR-3 line outputs are electronically balanced with an output impedance of <50 ohm. The outputs can be wired unbalanced by grounding the non-phase signal, allowing you to feed balanced and unbalanced equipment. Output gain adjustment using pre-set potentiometers for both converters allows a normalised mono output from domestic stereo equipment. The potentiometers are accessible through the rear panel.

RB-LC3
3 way light/power controller

The RB-LC3 is a triple output switching unit for controlling external mains indicators, primarily studio status lights for broadcasting applications, such as On-Air, Mic-Live and Rehearsal/Live lights. Each output can be individually controlled by one of three remote inputs (pulled high, or low), by a telephony input (when ringing, or off-hook, or both), or a combination of two inputs (to control two outputs, e.g. for Rehearsal/Live situations). The type of control is set using the 12 way DIP switch (4 switches for each output, allowing 16 different settings).

RB-SL2
Twin mono, or stereo limiter

The RB-SL2 is a stereo, or twin independent mono, VCA limiter for use in news-rooms and other locations where the correct level into recording equipment is required, but not necessarily under the control of an engineer, for example, for overload protection. It can also be used as an inexpensive main output limiter for small scale radio stations, hospital radio and student radio. The XLR-3 electronically balanced inputs and outputs can be wired unbalanced to accept an output from domestic equipment.

RB-RK1
1U front rack kit for small Redboxes

The RB-RK1 rack mount kit can be attached to the front of the smaller Redbox Oldproducts so that they can be rack mounted into a standard 19 inch rack unit.

RB-RK2
1U rear rack kit for small Redboxes, eg RB-BL2

The RB-RK2 rack mount kit can be attached to the rear of the smaller Redbox Oldproducts so that they can be rack mounted into a standard 19 inch rack unit.

RB-RK3
1U rear rack kit for large Redboxes, eg RB-DA6

The RB-RK3 rack mount kit can be attached to the rear of the larger Redbox Oldproducts so that they can be rack mounted into a standard 19 inch rack unit.

RB-RK20
10 off RB-RK2 Rack-Kits

RB-OA3
3 Studio On-Air Switcher (1U)

RB-OA3R
Remote Switch Panel for RB-OA3 (1U)

RB-OA3C
Expansion Unit Cable Kit for RB-OA3

RB-FR1
Front Panel, no 19" Mount, for RB-ADDA, RB-UL4, RB-BL4 & RB-LU4

RB-FR2
Front Panel, no 19" Mount, for RB-HD1 or RB-DAC1

RB-FR3
Front Panel, no 19" Mount Ears, for RB-HD2

RB-TGHDX
Multi-channel HD tone generator with XLR outputs

RB-TGHDB
Multi-channel HD tone generator with BNC outputs

RB-MTV1
Voiceover monitor with talkback

RB-DSD1
Digital silence detection unit

RB-DSD8
8 Channel Silence Switcher

RB-DEED8
Dolby E Encoder 8 channel, Digital inputs

RB-SYE
AES/EBU Sync Board

RB-VHDA8
HD-SDI 1 in 8 out video distribution amplifier

RB-SYW
Word Clock Sync Board For RB-TGHD(B or X)

RB-VHDMA8
3G/HD/SD-SDI De-embedder, 8 Channels, Analogue Outputs

RB-VHEMA8
3G/HD/SD-SDI Embedder, 8 Channels, Analogue Inputs

RB-VHCMA4
3G/HD/SD-SDI Embedder & De-embedder, 4 Channels Analogue I/O

RB-VHCMD16
3G/HD/SD-SDI Embedder & De-embedder, 16 Channels, Digital I/O

RB-DD4
4 Channel Digital Audio Delay Synchroniser

RB-DMX4
4 Channel Digital Audio Mixer

RB-DEDD8
Dolby E & Dolby Digital Decoder 8 channel, Digital outputs

RB-VHEDD8
3G/HD/SD-SDI Dolby E Encoder & Embeder

RB-VHDDD8
3G/HD/SD-SDI Dolby Digital Decoder & De-Embeder

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