Audio Signal Processors

The A 4573 module is capable of generating a variety of pre-announcement chimes and alert and evacuation tones for specific Redback® products. It comes equipped with separate volume controls for adjusting the levels of the alert/evac tones, chimes, and message/voice-over. The chimes and alert/evac tones can be activated by closing contacts through a five-way euro block and can be set to either momentary or alternate action via on-board DIP switches. The module features a selection of chime options, including pre-announcement, Ding Dong, repeating Bing, and repeating Bong, all of which are easily selectable through DIP switches.The module includes a switch over option for changing the evacuation tone after a designated time frame. The time can be adjusted from 30 seconds to 270 seconds in 30 second intervals, or it can be disabled altogether. Additionally, a microphone is included for recording an emergency voice-over message, which can be activated via DIP switches and will play twice after the evacuation tone is repeated four times.Important Note:The evacuation tone for this device conforms to fire evacuation standards AS1670.4.2004The evacuation tone (temporal pattern) conforms to international standards.Compatible Amplifiers - see accessories listed belowA 4037 40 Watt AmplifierA 4043 60 Watt AmplifierA 4047 100 Watt AmplifierA 4377A 125 Watt AmplifierA 4387A 250Watt AmplifierA 4275C 125 Watt AmplifierA 4285C 250 Watt AmplifierCompatible Mixers - see accessories listed belowA 4480AA 4480BSuitable Wallplates for remote triggering - see accessories listed belowA 2078BA 2081

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This unit is specifically designed to monitor the condition of 100V line speaker systems in emergency paging and fire evacuation installations. It can handle large commercial speaker circuits with loads of up to 250W per zone, whereas traditional line monitoring units were limited to 50W per zone. The A 4567C is capable of handling loads of up to 500W per zone. Its microprocessor controlled circuit provides continuous monitoring of loudspeaker lines for normal, open, or short circuit conditions. An LED indicator, with multiple colors, displays the line's condition for each zone. The Redback Line Monitoring Unit 10 Zone A4567C includes a built-in buzzer with a cancel button for audible alarm alerts. The unit also offers a switched output for remote monitoring in the event of a fault condition. The output is a ground signal and the unit provides three outputs: one for short circuit conditions, one for open circuit faults, and one combined output for any fault condition. The unit can be customized to work with multiple amplifiers. Dimensions: 482 x 152 x 44mm. Features 1U 19" rack mount Monitors 10 zones @ 500W max Configurable for use with 1 to 10 individual amplifiers. ie 1 amplifier per zone/circuit or 1 amplifier per many zones/circuits. Monitors normal, open and short circuit conditions Switched output for remote fault monitoring Pluggable terminals for all connections 24V dc operation Includes Power Supply Wiring RequirementsThis unit is specifically designed for "loop in loop out" serial wiring to loudspeakers and requires a 100kΩ terminating resistor at the end of the line. The use of star wiring or tee offs is strictly prohibited. In order for each loudspeaker to function properly, a series connected 22µf bipolar capacitor is also necessary. Additionally, a 10-second delay is included to minimize false alarms when detecting faults.A 4568 Zone Status InterfaceWhen using the A 4568, you can effectively track the state of every individual zone by setting up the interface in two different ways. The LED status can either indicate a normal or faulty state (without differentiating between open or short) or it can specifically display if there is an open or short. A Cat 5e patch lead is used to connect the A 4567C and A 4568, with screw terminals available for each zone.

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Integrate the A4567 Line monitoring unit with a fire indicator board using the A4568. This allows for individual zone status monitoring in two ways: 1. LED indicates normal or fault (no distinction between open or short). 2. LED indicates either short or open. A Cat 5e patch lead connects the A4567 and A4568, with screw terminals provided for each zone.

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This product, Redback Selection Panel 10 Zone PA Made in Australia A2080B, allows for the control of paging and background music in up to 10 speaker zones. It features an "all call" button and can be linked with other units to create unlimited zones. Connection is made through screw terminals on the rear panel. It is specifically designed for distributed PA systems in educational, recreational, and commercial environments. The unit is self-contained and does not require external power. Compatible with 100V or 70V line systems. Features 19" rack mount 10 zones & “All Call” 50W per zone Requires no power Units can be ganged together more zones Zone ID strip included

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Hearing loop amplifiers are designed to improve the listening experience for individuals who use hearing aids. They are commonly installed in noisy public areas where those with hearing impairments may struggle to hear. Both models comply with AS60118.4-2007 and feature a compressor/limiter circuit with a customized frequency response for clear speech intelligibility. They can handle loads of less than 2 ohms and are protected against short circuits, making them ideal for use in places of worship, community halls, and museums.The A 4212 280VA model delivers 8A RMS, 11A peak and is suitable for areas of approximately 650m2. Note that coverage may vary from site to site depending on outside influences such as steel reinforcement, high current electrical wiring etc.).Inputs are provided for balanced mic and line, auxiliary and an input with VOX muting for interfacing into venue emergency evacuation system.Suitable for 19" rack mounting with use of A4376 rack mount ears. Features Designed to meet AS60118.4-2007 Coverage up to 650m2 XLR line & mic inputs Aux input via stereo RCA EWIS signal connection (RCA) Short circuit proof Compressor for added speech intelligibility Adjustable VOX sensitivity Compatible with single loop designs

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 Includes voice chip for recording custom messages.This compact self-contained module contains both the alert and evacuation tones based on the Australian standard, making it easily integrated with most PA amplifiers. The tones have been carefully designed to conform to AS1670.4, providing a professional and scientifically accurate solution. Features  Tones can be configured for single or continuous cycle operation Switched negative to operate inputs On board output level control Line level output max 1V All connections made via screw terminals CPU based Tones conform to Australian standard Provision for voice over in evacuation mode All tones crystal locked Compact size 53 x 107mm 7-35V DC operation

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This product features multiple controllers that can be set up in two configurations: five single inputs to five outputs or one input to five outputs. Each zone has a capacity of 100W, totaling up to 500W on the panel. The 100W model offers ten positions plus an off option. The rear panel has heavy-duty screw terminals for connecting the inputs and outputs. The controllers are contained in a 2 unit rack and come with an engraving strip for labeling speaker zones. They are specifically designed for use in 100V line commercial PA systems. Features Standard 2 unit (88mm) 19" rack mount dimensions Five Zone outputs Accepts 1 to 5 inputs Each zone has 10 positions plus off 500W total load capacity (100W per zone) Easy to terminate screw terminals Unit is supplied with an engraving strip which can be fitted with double sided tape (supplied) Includes 24V DC override relay for bypassing volume controller settings.

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The A2078B wall plate enables remote triggering of Alert and Evacuation tones, as well as the cancel function. This can be achieved by connecting a minimum of 6 wires from the A2078B to the A4500B. For optimal performance, a minimum of 8 wires should be used when connecting the A2081 to the A4500B. With the use of standard Cat5 cable, the plate can be positioned up to 30m away from the main unit. For longer distances of up to 100m, heavier gauge cable must be used to ensure proper voltage drop and LED illumination. The Alert/Evac/Chime/Cancel switches on the wall plate are directly connected to their corresponding contacts on the A4500B, while the Alert, Evac, and Bell LEDs are connected to the corresponding 24V outputs. The cancel LED does not require a connection. To simplify wiring, the ground connections can be linked together for the Alert, Evac.  

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Expertly crafted for use with Redback Touch programmable touchscreen wallplates, the Redback 12 Relay Control Box can be utilized as a standalone system or as an expansion hub for the A 6505A. Featuring 12 relays with isolated voltage-free contacts that close upon operation, this control box is a reliable and versatile option. When paired with Redback Touch wallplates, the wallplate connection can extend up to 50m using a Cat5/6 cable. This hub then receives commands from the programmed plate and outputs the corresponding RS232/485 command signal to the pluggable terminals. This is ideal for controlling AV systems in spaces such as classrooms, lecture theatres, and board rooms. The serial outputs can be used to operate a projector and amplifier. 24V DC power is required, which also powers the connected wallplate.Size: 66W x 131W x 29H inc flanges.The relay hub can be used in three ways: Direct connection via Cat5/6 UTP cable to a Redback Touch wallplate, which is programmed to control relay activation. As an expansion to the A 6505A hub, increasing the total number of relay contacts from 3 to 15. In this configuration, one of the serial outputs of the A 6505A would be used to control the A 6510. These hubs should be located as close together as possible. As a standalone serial controlled relay hub for use with any third party system utilising RS232/485. Features Compatible with Redback Touch wallplates or third party serial control systems. RS232/485 input. Twelve relay outputs. Operation indicators on all relay outputs. Wallplate connection via standard UTP cabling. Powered by 24V DC input (passes power to wallplate – power supply sold separately)

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This audio splitter, the Redback 1 In to 2 Out Audio Splitter A4904, features a compact design and multiple input/output configurations. With a 3 pin XLR input that can be set for 3mV or 1V sensitivity and an RCA auxiliary input that can be configured for 100mV or 1V sensitivity, this device provides two output sockets for each input. The input and output sensitivity can be easily adjusted using DIP switches, while dedicated volume controls allow for fine-tuning of each output. This splitter operates using a 24V dc external power source.Dimensions: 112W x 45H x 55Dmm (excluding 12mm flanges).This unit does not include a power supply. Requires 24V DC @ 500mA. Suitable plugpack M 8968C. Features 1 input to 2 outputs Adjustable input and output signals Individual volume controls for each output Internally selectable phantom power available on XLR input 24V dc operation Compact design, 25H x 105W x 81D mm

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The compact module is expertly designed to remotely modify the volume of any low level signal source, whether it be an amplifier or a mixer, using RS 232 or RS 485 serial control. It can be seamlessly integrated with third-party control systems such as Crestron, AMX, RTI, Control 4, Savant, and others, as well as the "Redback Touch" wallplate. This versatile device includes one input and can be adjusted remotely through serial control or a wallplate, specifically the A 2280B model. A 24V DC power supply is required for operation.

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The A4432 is a versatile 8 input mixer with 5 channels, designed in collaboration with professional sound contractors. It brings together multiple audio sources in a compact unit, featuring the best aspects of our popular mixer and signal processing line. Inputs 1-4 can be configured for mic or line use, while input 5 provides 4 selectable line level RCAs and can be controlled remotely with the selection wallplate (A4433). Additional flexibility is available with the use of a local input plate (A4931), which can also mute input 5 when in use.Tone Generator Operation.The device includes a micro SD card slot for playing tones, chimes, and pre-recorded messages. The rear panel provides individual control levels for alert/evac, chime, and voice over options. These can be triggered by closing contacts from Fire Indicator Boards (FIB) or other remote sources, such as switches. Features Four Mic/ Line Input channels (Inputs 1-4) Four switched RCA AUX Input channels Remote AUX source selection, volume and Local input source volume control via optional A 4433 and A 4931 wall plates PTT Input and 24V PTT output (limited to 120mA) on inputs 1-4 Micro SD card based Alert/Evac/Chime/Voice-over module (In built) Individual level, bass and treble control on all inputs 3.5mm music input overrides AUX 4 Three levels of priority Adjustable Vox sensitivity on inputs 1-4 Adjustable input sensitivity 1V/100mV on inputs 1-4 and Aux inputs 1-4 Phantom Power on inputs 1-4 Tape out (Dual RCA) Balanced Output (XLR male) Five sets of closing contacts for message triggering (Alert/Evac/Ch1/Ch2/Cancel) 24V DC switched output (Limited to 120mA) MP3 active indicator Signal Present indicator LED VU Meter 24V DC operation (Plugpack Supplied) 24V DC battery back up terminals Specifications Inputs: 4 x mic balanced 600Ω, 4 x Line Stereo 10KΩ, 4 x Line Stereo 10KΩ (switched) Output: 600Ω balanced 0dBm Distortion: Less than 0.3% Frequency Response Mic: 30Hz-15kHz Line: 18Hz-23kHz S/N ratio: All controls min. -98dB Sensitivity: Mic 2mV, line 100mV/1V Phantom power: Nominal 12V DC Controls Mic/line inputs: Bass, treble & volume + master Bass/Treble: ±10dB @ 100Hz Connectors Outputs: 3 pin XLR balanced, Stereo RCA Mic inputs: Screw terminals Line inputs: RCA sockets ­Indicators: MP3 active, signal presence, 6 LED VU meter, power Power supply: 24V DC Mechanical Dimensions: 482W x 170D x 44H mm Weight: ≈2kg

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This module contains a 7-step 100V line speaker attenuator/volume control that can be remotely adjusted through RS485 serial control. The inclusion of a 24V DC override relay allows for emergency paging situations, ensuring the maximum volume is always activated. It is compatible with all 100V line amplifiers and can be connected between the amplifier output and controlled speakers. This device is also compatible with the "Redback Touch" wallplate and other third-party control systems. A capacitor is included for line monitoring purposes, and a 24V DC power supply is required for operation.

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This device supplies either microphone or line level output that can be easily connected to an amplifier input. Connection between the A 4660 paging console and this unit is established through a Cat5e cable, providing both power and a balanced audio output from the microphone.

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This compact module enables remote volume adjustment of low level signal sources for amplifiers or mixers through RS 232 or RS 485 serial control. It can be used with the "Redback Touch" wallplate or other third-party control systems. A 24V DC power supply is required. Features two RCA inputs (selectable via serial control) and remote volume control.

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This microphone/line receiver hub can handle audio from up to four A 4931 zone wallplates or other Redback UTP transmitters. The A 4931 wallplate accepts both microphone and line inputs, converting them to balanced high-level outputs. The 3V signal is transmitted via Cat5e cable (capable of distribution up to 300m without interference) back to the hub. Mic inputs use a balanced XLR connection, while line inputs can be made through 2 RCA sockets or a 3.5mm audio jack for portable devices with a lower-level line output. The hub features individual output channels for each transmitter and includes front-mounted volume controls. Users can adjust DIP switches to choose which source is sent to the main combined output. Each output, including the main output, can be set to balanced mic/line or unbalanced line levels via DIP switches. The included plugpack provides 24V DC power for the hub. Part of the Redback UTP Solutions Range.Explore the Redback UTP solutions range with the Four Output Microphone/Line Hub A4930. Create seamless connections between different audio signals and local zones, and easily integrate with equipment racks. Refer to the connection matrix to see the full range of compatible items. Features Connects to A 4931 transmitter wallplate or other Redback UTP transmitter (see connection matrix) Connect up to four audio zones together. Easy Cat5e/6 UTP data cabling connection. Up to 300m cable runs out to zones. Balanced Euro terminal block connections. Balanced mic or line level operation. 24V DC operation. Australian designed & assembled. Rack MountingTo properly incorporate any of the Redback half rack products into a 19" racking system, the H 4990 bracket is essential. In cases where a single product is being mounted with the H 4990, a metal (H 4992) or plastic (H 4993) infill panel may be used for a more streamlined appearance. Specifications Output Mic Level: 3mV Output Line Level: 1V Output Connectors: Audio Outputs: Euroblock terminals Input Connectors: Wall Plate Inputs: RJ45 8P8C 24V DC Power: 2.1mm JACK (centre +ve) 24V DC Power: Euroblock terminals Controls: Volume1-4: Front Volume Power Supply: 24V DC @ 1 Amp Dimensions: 210W x 122D x 44H Weight: 0.4 kg

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The A 1715 is a DIN rail MP3/SD message player that is housed in a convenient design. It features four independent contacts for remote triggering of four available MP3 audio files, allowing for recorded messages, music tracks, or any audio in MP3 format. All files are stored on the included Micro SD card. Audio is output through dual stereo line level RCA connections and the unit is powered using the provided 24V DC plugpack. Features Four MP3 audio messages available Micro SD Card storage of MP3 files (supplied) Stereo Dual RCA output Remote triggering of MP3 playback Manual playback of MP3 files 24V DC operation Supplied with 24V DC plugpack

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Suits A4500B - see listed in accessories belowThis wall plate allows for remote activation of the Alert and Evacuation tones and the Cancel function. The momentary operation switches require a press of up to 3 seconds to activate and have protective "flip up" covers to prevent accidental use. It connects to the A4500B via standard Cat5e cabling and has two RJ45 ports on the rear, with either one being usable. Only one A4578 wall plate can be connected to the A4500B through the "To Wall Plate" RJ45 port. In case of connection issues with the main unit, the LED on the wall plate will flash. Suits A4565A - see listed in accessories belowThe A4578 wall plate enables the remote activation of both the Alert and Evacuation tones and the cancel function. The switches have a momentary operation and require up to 3 seconds of pressing to activate. Additionally, protective "flip up" covers are included to prevent unintended activation. If there is a connection issue between the A4578 and the A4565A main unit, the LED on the wall plate will flash. Please note that remote activation is only possible when the A4565A is in "Auto" mode, which is selected using the key switch on the front of the unit.These are designed to match your current decor. Simply clip on the desired cover after installation.

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This REDBACK MP3/SD Random Message Player A1745 easily connects to any existing stereo input and delivers intervalled messages and background music to enhance the customer experience. The 8GB SD card included offers the option to customize background music and promotional messages for your business. The player allows for adjustable message intervals ranging from 30 seconds to 7.5 minutes. It also features a standard stereo RCA line output for convenient connection to existing PA or telephone systems. Playback starts automatically upon switching on, and files play in the specified order within the designated 'music' or 'messages' folders (alpha-numerically).Plugpack included. Features Connects to standard stereo input SD card input for custom track storage Randomised playback. 12-30V @ 300mA DC operation Includes 8GB SD card Adjustable message interval timing (30s to 450s) Ideal for in store background music promotion Includes power supply

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As an expert in the field, I present to you the REDBACK 4 Channel Public Address (PA) Mixer with MP3 Message Player A4435A. This professional-grade mixer offers 4 channels and an MP3 message player, allowing for clear audio broadcasting and customizable messaging. Perfect for public speaking, schools, and events Make your voice heard and stand out from the crowd with the REDBACK 4 Channel Public Address (PA) Mixer with MP3 Message Player A4435A. Featuring 4 channels and an MP3 message player, this professional-grade mixer is designed for optimal audio clarity and personalized messaging. Ideal for public speaking events, schools, and any occasion where clear, customizable sound is essential. Features Four input channels SD card message player for audio announcements Individual level, bass and treble control on all inputs 3.5mm music input Adjustable input sensitivity on mic or line 24V DC battery back up terminals Four sets of closing contacts for message triggering 24V DC switched output Message active indicators Adjustable Vox sensitivity Specifications Audio Inputs: 4 x mic balanced 600Ω, 4 x Line Stereo 10KΩ Output (stereo): 600Ω balanced 0dBm Distortion: Less than 0.3% Frequency Response Mic: 30Hz-15kHz Frequency ResponseLine: 18Hz-23kHz S/N ratio: All controls min. -98dB Sensitivity: Mic 2mV, line 100mV/1V Phantom power: Nominal 12V DC Output connectors: 3 pin XLR balanced, Stereo RCA Controls Mic/line/message inputs: Bass, treble & volume + master Bass/Treble: ±10dB @ 100Hz Input Connectors Mic inputs: 3 pin XLR balanced Line inputs: RCA sockets ­ Indicators: Message active, output active, power, fault General Power supply: 24V DC Dimensions: 482W x 175D x 44H mm Weight: ≈2.1kg

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The A4906 is a multifaceted device that can accommodate a line-level signal, balanced microphone signal, or 100V input signal. Its output is a line level signal that can be easily connected to an amplifier. The microphone input offers phantom power and a VOX circuit with adjustable sensitivity, which activates output relays. The device runs on a 24V DC power source. Covering all your needs, the A4906 allows you to easily connect to an amplifier with its versatile input options and line-level output signal. With features like phantom power and adjustable sensitivity, this device is a reliable and powerful tool powered by a 24V DC power source.This unit does not come with a power supply. It needs a 24V DC input and can support up to 500mA. A suitable plugpack is necessary such as the M 8968C. Features Mic, line or 100V input level. Line level output. Phantom power to Mic Input (12V DC). Controls for master volume and VOX sensitivity. VOX operated relay outputs. 24VDC switched output. (120mA Max). VDC operation via 2.1mm DC power jack. Dimensions 133W x 30H x 80D mm. Weight: 0.28 Kg

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This pre-amplifier allows for the use of both microphones and auxiliary inputs, converting them to a balanced high level signal. The output is able to be distributed up to 500M without interference and has an available output level of up to 3V. Volume controls for both inputs, as well as a master volume control, are included. The microphone input is balanced with an XLR connection, while the auxiliary input has 2 RCA sockets and a DIP switch attenuator for adjusting input signal levels. The output is connected via a male 3 pin XLR.This product features two inputs, one for a Balanced Mic with 1.5mV input level and the other for a line level with adjustable sensitivity (200mV, 500mV, or 1V) through DIP switches. Separate volume controls are provided for the Mic and Aux inputs, while the overall output volume can be adjusted using the Master volume control. The unit operates solely on 24V DC power.This product does not come with a power supply. It needs 24V DC @ 500mA and a compatible plug pack M 8968B. Features XLR Mic input RCA Aux input XLR balanced output. Phantom power to Mic Input (15V DC). Controls for AUX, MIC and master volume. DIP Switch selectable AUX input sensitivity. 24VDC operation via 2.1mm DC power jack. Shipping Weight: 0.27Kg Specifications Power: 24V DC Input (2.1mm) Max current draw: 40mA @ 24V Frequency response: 30Hz to 10KHz (±0.5dB) Noise: > -50dB Controls: Master, Mic and Aux volume Weight: 240gm Dimensions: 133W x 65D x 44H mm Colour: Black Input: XLR (Microphone): Reference level, 1.5mV RCA (Auxiliary): DIP switch selectable level (Nominal: 0.2V, 0.5V, 1V) Mic input impedance: 600Ω Balanced Line input impedance: 10kΩ Output: Connection: Balanced 3V XLR (8.5V p-p) Output load required: 600Ω nominal, balanced Output level: +15dBM

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Connect your high-fidelity audio equipment with the Digitech XLR Plugs, 3-Pin Line Female Cannon Type Connector PS1015. Crafted with 3-Pin Line Female Cannon Type Connectors, this tapered plug promises reliable connections for better audio performance. Enjoy precise audio channeling and reduced signal interference with Digitech's trusted connector. With these 5 plugs, you'll be able to expand your musical exploration with a reliable connection. Specifications Mounting Method : Line Packaged Volume : 0.08l Packaged Weight : 0.03kg Packaged Length : 10.9cm Packaged Width : 3.4cm Packaged Height : 2.1cm Plug or Socket Type : XLR Device : Socket Attachment Method : Solder Tag Pack Quantity : 1pc Contacts / Pins : 3pc Case Material : Plastic Colour Coded : Black

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Digitize your audio with Digitech's AC1716 Analogue to Digital Audio Converter. This device features a high-quality 24 bit A/D converter and supports sampling rates from 8kHz to 48kHz for crystal-clear sound. Enjoy a crisp digital audio signal with no distortion for maximum listening pleasure. Digitech's AC1716 Analogue to Digital Audio Converter offers a range of features for pristine digital sound, including a low-noise signal path and a wide frequency response for added clarity. With this device, you can easily enjoy the digitalized audio experience you crave.  Features: High Quality Sampling Rate Toslink and Coaxial Input Sampling Rate: 48kHz Power: 5VDC at 1A (240V mains adapter included) Specifications Height : 26mm Depth : 42mm DC Plugpack Voltage : 5V DC Current Draw : 1A Item Connection : Barrel Plug Suitable PSU Included : true Packaged Volume : 0.82l Packaged Weight : 0.19kg Packaged Length : 10.5cm Packaged Width : 12cm Packaged Height : 6.5cm Switcher/Converter Type : Converter Input type : Audio Input Connection : RCA Stereo Pair Number of inputs : 1pc Output Type : Digital Audio Output Connection : TOSLINKRCA Digital Coaxial Audio (SPDIF) Number of Outputs : 2pc Power Requirement : External Power Required

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