Sonifex has been manufacturing audio equipment for more than 37 years. Committed to excellence in design, Sonifex has earned a reputation for building high quality, reliable professional audio products for broadcasting and security applications.
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RB-PD2 Stereo Profanity Delay
The RB-PD2 is a stereo audio profanity delay used for live broadcast programs to prevent unwanted or obscene material from being transmitted. It features an automatic audio stretch algorithm that allows between 2 and 55 (*) seconds of delay to be built up live whilst “on air”, whilst maintaining the correct pitch. The delay can also be acquired whilst playing a pre-selected audio file on a CompactFlash™ memory card. When the program is complete, the audio stretch algorithm seamlessly reduces the delay to zero.
The RB-PD2 has both balanced analogue and AES/EBU digital audio inputs and outputs on 3 pin XLR connectors and provides sample rates up to 48kHz at 24 bit. It can act as acombined A/D and D/A unit meaning that analogue inputs can be output as AES/EBU or vice-versa.
The delay can be initiated by pressing the BUILD DELAY button on the front panel. A front panel display shows the amount of delay being built-up, up to the amount initially selected.
There are several ways to make sure that any unwanted material is removed from the audio at the outputs. A COUGH function, activated from a dedicated front panel button, allows locally generated sounds being presented at the inputs, such as the presenter coughing or equipment switching noises, to be discarded.
The DUMP function, which is also activated from a front panel button, has 2 different modes. The first DUMP mode removes a section of audio that has already been buffered, by a pre-selected amount. The second DUMP mode plays a pre-selected audio file on the Compact Flash™ memory card. When the file has finished playing, the delay is then equal to the duration of the file. The DUMP button can be used multiple times to use up the built-up delay and once used, the unit automatically starts to rebuildthe original delay time.
As a last resort, all the buffered audio can be discarded by pressing and holding the DUMP button which activates the DROP function.
At the end of a radio show when you want to broadcast live, the delay can be ramped down by pressing the front panel EXIT DELAY button.
A dedicated record mode allows audio presented at either the analogue or digital inputs to be recorded to a linear WAV file on a Compact Flash™ memory card. Additionally, the card format used is PC readable, allowing pre-recorded linear WAV files to be transferred easily from a PC or other such device.
Sonifex RB-OA3 Studio On-Air Switcher
The RB-OA3 is a 1U rack-mount, unity gain on-air switcher, capable of switching three stereo pairs between three studios. Each studio can control the transmission path together with two peripheral paths for equipment such as a codec or hybrid and there is also a "Last studio to offer" bus, allowing for seamless and continuous broadcast from any multi-studio radio network. A "sustain" mode allows for a sustaining system, such as a PC automation system, to control the broadcast. Multiple RB-OA3 units can be connected together to switch more studios or more stereo pairs.
The switching is achieved using relays, except the "last studio to offer" which is switched by an analogue switch. The transmission path is switched using latching relays. This means that if there is a power failure to the unit, the transmission path will remain selected.
All studios are connected using 25 way D-types for electronically balanced audio signals and control is achieved using 15 way D-types, connecting to an external control unit such as the Sonifex S2-MTBS mixer control panel. A transmission mix connection is included to mix audio which is generic to all studios into the transmission path. This could be used for jingles or adverts for example. The RB-OA3 also allows for the control of a profanity delay to be shared by all connected studios.
Each studio has the ability to offer the transmission. Once offered, the transmission is fed to the other studios via the "last studio to offer" bus. The next scheduled station can then fade in the transmission and accept at the appropriate time meaning the transmission can be continuous
The "sustain" mode can be used to control an automated studio, such as an overnight music system. In this case, station control will switch to the automated system by holding the Offer button down for a number of seconds, pre-determined by a calibration routine. This will select the sustaining studio, set as studio three, which will immediately offer control back to all remaining studios. Any studio can then accept to resume orthodox broadcasting.
The RB-OA3 can be expanded to switch between up to 5 studios or up to 6 stereo pairs by connecting a multiple of units together via RJ45 serial connections. With the addition of a single unit, expansion in "studio" mode allows for 2 additional studios to take control of the transmission path and additional equipment. If the expansion is made in "bus" mode, then three additional stereo channels can be added. 4 x RB-OA3 units can be connected together to switch 6 stereo pairs between up to 5 studios.
The modes are configured by dip switch configurations, on the rear of each unit. Two dip switches control the unit ID and there are two switches which decide between "studio" and "bus" modes. A master unit, defined by a preset ID, conducts all communication between all units.
Brochure : http://www.sonifex.co.uk/company/logos-images/catalogues/redbox-singlepages/rb-oa3.pdf
New Sonifex On Air Lights
Sonifex Signal LED Studio Illuminated Signs
Designed for studio installers and systems integrators, these elegant RGB LED signs contain the control electronics themselves so that they can be simply configured for colour and operation on site. The signs are flush mounted as standard but an optional kit can be used to end-mount them to the wall. There is also a double-sided end-mounted version which can be used, for example, in corridors, so that different wording is displayed on each side of the sign, or the same wording in a different orientation on each side.
Each sign is 40cm or 20cm long. The 40cm signs can be split into two 20cm sides which can be separately, or jointly controlled, e.g. a 40cm 'ON AIR' sign, or twin 2 x 20cm signs, such as 'ON AIR' and 'MIC LIVE'. There is a wide range of different lettering available and the colours of the signs can be chosen from white, green, red, blue, yellow and orange. The signs can be installed and then configured for operation using accessible DIP switches.
Display modes available are: to be on constantly, to flash, to pulse, or to switch off using two control pull-low inputs which can control the whole sign, or either side of the sign. Each sign is supplied with a 6V DC power supply with international mains fitments and a 5m cable.
New Sonifex Reference Monitors
RM-2S4 Reference Monitor, 2 LED meters, 4 stereo channel audio inputs.
The RM-2S4 is a 1U rack-mount unit offering quality loudspeaker monitoring and accurate, high-resolution metering of up to four stereo audio sources and more with the addition of optional expansion cards. Sources may be in any mixture of analogue and AES/EBU digital formats, with sample rates up to 192kHz accepted.
Audio inputs on the RM-2S4 can be analogue or digital because they are autoswitching using the left Neutrik™ XLR for AES/EBU, or both Neutrik™ XLRs for analogue inputs and they can be used in any combination.
Analogue inputs can be balanced or unbalanced in any combination. The digital inputs have switchable AES/EBU termination for (close-range) bridging operation and there is extra global input gain available for both analogue and digital low-level sources.
Sources (and additional banks of sources, if fitted) are selected via a front panel rotary encoder, with clear LED indication of the current selection. A pair of line-level audio outputs, configurable as analogue or AES/EBU digital, follow the selected source at either a fixed level or one mirroring the loudspeaker volume.
The level of the chosen source is displayed on a pair of bright, multicoloured 53-segment bargraph meters, with a choice of seven accurately modelled scales/responses to suit different applications and local preferences. Clear scale labels are provided for you to chose the scale displayed and the meter brightness can be adjusted from the front panel. A separate phase meter indicates channel correlation or phase error conditions. On the rear panel, open-collector alarm outputs provide hardware indication of sustained underlevel, overlevel, phase errors and digital source lock.
Six illuminated pushbuttons provide access to a range of audio ‘modifiers’ – instant dimming of the volume, individual muting of each audio channel, stereo-to-mono conversion, phase inversion and Middle+Side transcoding. On the rear panel, logic-level inputs allow direct remote access to the DIM and MUTE functions.
The three-way loudspeaker system is fed via a DSP-based active crossover and a trio of highly efficient Class-D amplifiers. Careful attention to driver selection, materials and case design, plus active DSP equalisation, has ensured a flat response and outstanding reproduction from such a shallow unit. A protective limiter prevents damage to the loudspeakers under overload conditions and the front-panel headphone socket automatically mutes the internal loudspeakers when a plug is inserted. A Balance control allows you to alter the stereo imaging of the left and right channels.
A further five-band parametric equaliser can be accessed for room-equalisation purposes via Sonifex SCi Windows-based remote control software. Source selection, status monitoring and unit ID functions, plus firmware updates to add extra functionality, are all accessible remotely via both USB and RS232 connections in conjunction with Sonifex SCi software. The open control protocol also allows operation with terminal programs or customised applications.
Optional additions to the RM-2S4 include HD video input expansion cards, allowing multiple AES groups embedded within an HD-SDI or SD-SDI signal to be de-embedded and monitored, either with (RM-HD1E) or without (RM-HD1) Dolby® E or Dolby® Digital encoding.
The RM-2S4 unit operates from global mains voltages (85-264V AC, 47-63Hz) without adjustment.
RM-4C8 Reference Monitor, 4 LED meters, 8 channel inputs, dual selectors.
With 4 x bright high-resolution 26 segment meter displays and separate left and right source selectors, the RM-4C8 is ideal for monitoring audio channels in an SDI group, or groups of de-embedded AES/EBU channels. The RM-4C8 offers the same functionality as the RM-2S4 but with an additional source selector so that any of the 4 channels in the selected group, or bank, can be monitored independently on left and right speakers.
Also, 4 meters are provided so that every channel in the selected group, or bank, can be visually monitored and 4 expansion port groups of 4 channels are allowed, so that all audio channels in an HD-SDI signal can be monitored, using the optional RM-HD(E)1 cards.
The audio inputs on the RM-4C8 are auto-sensing, for digital AES/EBU using the left input XLR, or both XLRs for analogue inputs. The inputs can be used in any combination of analogue or digital.
With full remote control via GPI, RS232 or USB, a 5 band parametric equaliser, 6 front panel modifier buttons and the ability to take the optional HD-SDI expansion cards, the RM-4C8 is a flexible and versatile monitoring solution.
The same high level of care has been taken in the design of the RM-4C8 as in the RM-2S4 to ensure that it will be the best sounding 1U rack-mount audio monitor that you listen to.
RM-2S10 Reference Monitor, 2 LED meters, 10 stereo channel audio inputs.
The RM-2S10 is a 1U rack-mount unit offering quality loudspeaker monitoring and accurate, high-resolution metering of up to twenty (10 separate analogue and digital) stereo audio sources and more with the addition of optional expansion cards. Sources may be in any mixture of analogue and AES/EBU digital formats, with sample rates up to 192kHz accepted. Analogue inputs can be balanced or unbalanced in any combination. The digital inputs have switchable AES/EBU termination for (close-range) bridging operation and there is extra global input gain available for both analogue and digital low-level sources.
Sources (and additional banks of sources, if fitted) are selected via a front panel rotary encoder, with clear LED indication of the current selection. On the RM-2S10, the Source LEDs also act as signal present indicators. A pair of line-level audio outputs, configurable as analogue or AES/EBU digital, follow the selected source at either a fixed level or one mirroring the loudspeaker volume.
The level of the chosen source is displayed on a pair of bright, multicoloured 53-segment bargraph meters, with a choice of seven accurately modelled scales/responses to suit different applications and local preferences. Clear scale labels are provided for you to chose the scale displayed and the meter brightness can be adjusted from the front panel. A separate phase meter indicates channel correlation or phase error conditions. On the rear panel, open-collector alarm outputs provide hardware indication of sustained underlevel, overlevel, phase errors and digital source lock.
Six illuminated pushbuttons provide access to a range of audio ‘modifiers’ – instant dimming of the volume, individual muting of each audio channel, stereo-to-mono conversion, phase inversion and Middle+Side transcoding. On the rear panel, logic-level inputs allow direct remote access to the DIM and MUTE functions.
The three-way loudspeaker system is fed via a DSP-based active crossover and a trio of highly efficient Class-D amplifiers. Careful attention to driver selection, materials and case design, plus active DSP equalisation, has ensured a flat response and outstanding reproduction from such a shallow unit. A protective limiter prevents damage to the loudspeakers under overload conditions and the front-panel headphone socket automatically mutes the internal loudspeakers when a plug is inserted. A Balance control allows you to alter the stereo imaging of the left and right channels.
A further five-band parametric equaliser can be accessed for room-equalisation purposes via Sonifex SCi Windows-based remote control software. Source selection, status monitoring and unit ID functions, plus firmware updates to add extra functionality, are all accessible remotely via both USB and RS232 connections in conjunction with Sonifex SCi software. The open control protocol also allows operation with terminal programs or customised applications.
Optional additions to the RM-2S10 include HD video input expansion cards, allowing multiple AES groups embedded within an HD-SDI or SD-SDI signal to be de-embedded and monitored, either with (RM-HD1E) or without (RM-HD1) Dolby® E or Dolby® Digital encoding.
The RM-2S10 unit operates from global mains voltages (85-264V AC, 47-63Hz) without adjustment.
Net-Log Network audio logger
Net-Log is a dedicated hard disk based 4 channel audio logging recorder designed for the recording and archiving of live events that extend beyond the capacity of normal recording devices. Material is MPEG compressed and available for replay in high quality mode or converted to low quality mode as it is aged for archival recovery. Audio material can be accessed via desktop PC's within a network and grab files can be emailed as required. Net-Log is suited to radio station program logging, Conference records for councils, corporate board rooms or teleconferencing.
Brochure: http://www.sonifex.co.uk/company/logos-images/catalogues/netlog.pdf
Mentor Time Server
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Mentor Server | 
Mentor Client |
For networks running the Netlog audio logger on LAN the software based Mentor time server synchronises the workstation client machines to it's time.
D:Scribe audio and text transcription system
D:Scribe sever and client is a database transcription system that records, categorises and stores audio files with their associated written transcriptions which can be accessed over a LAN or WAN. Applications include police interviews and reports, court proceedings, formal corporate and municipal meetings and conference minutes. D:Scribe works in conjunction with the Net-Log audio recorder and offers all the storage and archiving features of this product.
S2 On-Air mixing console
S2 is the latest release of on-air consoles from Sonifex featuring a selected mix of digital or analogue inputs. For studios in the transition from analogue to digital outboard gear this console offers a high quality solution. Using clean lines and a logical ergonomic layout of modular construction the S2 can cater for up to 30 channels of operator control in a variety of custom configurations.
REDBOX Audio Interfaces
| Sonifex Redbox Range of Audio Interfaces |
| Designed and manufactured to the highest specifications, Redbox is a range of analogue and digital audio interface boxes for use in various professional applications including radio stations, TV studios, home studios and video and recording suites. - All are equipped with IEC mains lead and instruction manual.
- All are screw mountable as standard and are either rack-mounted or have the option to be rack-mounted.
- In-house design and manufacture ensures high quality control standards.
- They are manufactured as either 115V 60Hz or 230V 50Hz and all have a front panel LED power indicator.
- Manufactured within ISO9000 standards and guaranteed CE compliant.
- Housed in eye catching red anodised aluminium cases.
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| All the Redboxes are screw mountable as standard and are either rack-mounted or have the option to be rack-mounted. The RB-RK rack mount kits can be attached to the front or the rear of the Redbox products so that they can be rack mounted into a standard 19 inch rack frame in 1U of space. | | For rack mounting smaller (28cm) units the optional RB-RK1 (Red) or RB-RK1B (Black) kit can be used (which include 4 off M6 panel fixing screws). | For rear panel mounting you can use either the RB-RK2, or RB-RK3, depending on the size of your Redbox.
RB-RK2 1U rear panel rack kit for small Redbox range, e.g., RB-BL2
RB-RK3 1U rear panel rack kit for large Redbox range, e.g., RB-DA6 |  | Wherever you see this symbol an RB-RK1 rackmount kit can be used. |  | Wherever you see this symbol an RB-RK2 small Redbox rear panel rack ears can be used. |  | Wherever you see this symbol an RB-RK3 large Redbox rear panel rack ears can be used. |  | Wherever you see this symbol an RB-FR1 panel kit can be used. |  | Wherever you see this symbol an RB-FR2 panel kit can be used. |  | Wherever you see this symbol an RB-FR3 panel kit can be used. | | When ordering a Redbox from Sonifex it is helpful if you can specify your required operating voltage. After the product code add:-
 | UK for 230V, UK 3 pin to IEC lead. |  | EU for 230V, EEC Schuko 2 pin to IEC lead. |  | US for 115V, US 3 pin to IEC lead. |  | AU for 230V, Australasian 3 pin to IEC lead. | | |
Related Links :
Redbox Brochure
Handbook for Analogue Redboxes
Staiton Master
Talkback refers to the standard method of communication between broadcast studios. Each studio has either a desktop, a rack-mount, or mixer-mounted intercom, usually containing a row of switch buttons. Each switch button connects to another studio when pressed, and routes the presenter audio to it.
There are 4 products in the Sonifex Talkback Intercom range : - TB-6D - 6 Way Talkback Intercom, desktop free standing
- TB-6R - 6 Way Talkback Intercom, 19" rack mounted
- TB-SD - Station Master Talkback Intercom, desktop free standing
- TB-SR - Station Master Talkback Intercom, 19" rack mounted
The TB-6D and TB-6R are general talkback interfaces which can be connected together to form a talkback system. The TB-SD and TB-SR are talkback units which only operate when connected to the Sonifex Station Master studio switcher.
TB-SD & TB-SR - Station Master Talkback Intercom units are used for interfacing with the Sonifex Station Master studio switcher and are similar to the 6 way talkback intercoms, except that the talkback routing and switching (DC signalling) is handled by the Station Master.
Talkback For Up To 5 Locations
Radio Studio Application Using TB-SD & TB-SR Using the Station Master as the core of a complete studio air-switching, distribution and talkback system, up to 4 studios can be connected using the TB-SD and TB-SR. A typical application would be to distribute talkback and audio feeds around a small radio station, as in this diagram.
The TB-SD and TB-SR intercoms are connected to the Station Master in a star pattern, with the Station Master as the central hub and unbalanced point-to-point links from it to each location. This setup could also be used for controlling on-air switching and for distribution of the external inputs to the other locations.
TB-6D & TB-6R 6 Way Talkback Intercoms The TB-6D and TB-6R are used for general talkback between studios and use DC signalling, also known as ground lifting or ground signalling, to communicate with each other. These units can be installed in various locations throughout a studio complex and linked to one another, with each unit being able to talkback to up to 6 others connected together. Most other talkback systems in general operation also use DC signalling, so you should be able to add these units into an existing installation.
Desktop Or Rackmount
Talkback For Up To 7 locations
Press & Release, Press & Hold Operation
Onboard Electret Mic or External Mic
Monitoring External Inputs
Built-in Loudspeaker & Headphones
Radio Studio Application Using TB-6D & TB-6R A typical application would be to distribute talkback and audio feeds around a radio or TV studio complex, as in this diagram.
The TB-6D and TB-6R units are daisy-chained together from location to location and the radio station output from an off-air receiver is distributed on input EXT 1 of each unit. The EXT 2 input could be used in the news or sales area for monitoring local sources such as a PC audio output. Linking the studios in this way allows all locations to talk to each other together with the ability to monitor 2 external feeds, with independent control of monitor muting and headphone/speaker levels.
