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Description |
Downloads |
Specs |
Ordering |
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A4380A |
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- Robust design incorporating latest Mosfet technology
- Very Low noise and distortion
- 70V, 100V and 4-16Ω outputs
- 240V AC or 24V DC operation
- 24V DC @ 1 Amp output for external devices
- Multi stage thermally cued fan cooling
- Output Peak Limited
- Thermal Overload protected
- Signal Presence Indicators
- Fault Indicators
- Power Status Indicators
- Rack Mountable (suits 19 inch racks)
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This range of booster amplifiers are ideal for installations requiring high power zone amplifiers. Simply choose a power rating according to the wattage required for each zone. |
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A4387A |
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- 3 Balanced microphone inputs / 3 Aux inputs / 1 Music input
- Robust design incorporating latest Mosfet technology
- Very Low noise and distortion
- 100V standard with optional 70V and 4-16Ω outputs
- 240V AC or 24V DC operation
- VOX muting on inputs 1 and 2 (Switch selectable internally)
- Adjustable VOX level sensitivities
- Bass and Treble controls
- Tape Output
- Phantom power on microphone inputs (DIP switch selectable internally)
- Multi stage thermally cued fan cooling
- Output Peak Limited
- Thermal Overload protected
- Signal Presence Indicator
- Half power mode when overdriven
- Fault Indicators
- 24V DC Power Status Indicator
- Optional Alert/Evac module with voice over message for emergency tones (A 4573)
- Optional remote volume (With A 4373 Digital volume control module fitted and external A 2280B wall plate)
- Rack Mountable (suits 19 inch racks) with optional A 4376 rack ears
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This 250 Watt 4 channel mixer amplifier is specifically designed for applications requiring up to three microphone inputs, without compromising output power and overall performance. The amplifier feature three inputs which can be configured for either microphone or line level operation. |
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A4198 |
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- Amplifier type: Class D stereo
- Output power: 15W RMS per channel @ 4 ohm
- Distortion: 0.06%
- Headphone output: 105mW RMS per channel
- Headphone distortion: 0.05%
- Min load: 4Ω
- Current draw: 9A max.
- Power: 12V dc
- Dimensions: 205W x 108D x 26Hmm
- Weight: 0.5kg
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Excellent for multi-room audio distribution, this 12V powered four zone amplifier produces 30W RMS per zone (15W RMS per channel) - all from a case just 200mm across! One input source may be connected on the front panel via stereo RCA sockets. |
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A4037 |
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- 3 balanced microphone inputs
- Phantom power on mic inputs
- 3 line inputs
- 19” rack mount kit included
- VOX muting
- Tape output RCA sockets
- Bass and treble tone controls
- 100V line output
- 240V AC or 24V DC operation
- Built in short circuit protection
- 10 year warranty
- Optional evac module available
- Optional remote volume module
- Australian designed & assembled
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Designed to meet the requirements of medium sized professional public address installations, delivering an output power of 40W RMS respectively. |
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A4376 |
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1 Pair of bolt on rack ears to allow installation of amplifiers into a 19" rack system. Designed to fit the following Redback models:
A 4375, A 4385, A 4375A, A 4385A, A 4377, A 4387, A 4210, A 4212. |
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A4159 |
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- Output Power (Stereo 8Ω): 350W + 350W
- TA 1KHz THD≤1% (4Ω): 500W + 500W
- Bridge 8Ω: 1000W
- Frequency Response: 20Hz-20KHz +/-0.5dB
- Input Sensitivity: 0.77V
- Maximum input level: 18dB/6.2V
- Input Impedance active balanced: 20KOHMS/Balanced, 10KOHMS/un-Balanced
- Signal/noise ration a-weighted RMS: ≥95dB
- Crosstalk at rated output power (8Ω 1kHz): >70dB
- Damping Factor (f=1kHz 8Ω): >240
- Slew rate internal: 15V/us
- Protection: Short circuit, current limited DC fault AC line fuse, thermal cut off, power up/down transients
- Indicators: POWER (BLUE) PROT (RED) CLIP (YELLOW) BR (GREEN) PAR (GREEN)
- Cooling: Variable Speed Fan
- Front Panel Controls: LEVEL ACH, BCH POWER SWITCH
- Rear Panel Controls: STEREO/BRIDGE/PARALLEL MODE SWITCH
- Connector: XLR BALANCED INPUT, PROFESSIONAL SPEAKON OUTPUT
- Power consumption half power 8Ω: <440W
- Power Supply: 240V AC/50Hz
- Interior Dimensions: 482 x 325.5 x 88mm
- Exterior Dimensions: 555 x 415 x 168mm
- Net Weight: 9.5kg
- Gross Weight: 11.5kg
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The Apple series Biema power amplifiers are a cost effective solution for demanding commercial audio applications. These non-bridgeable models are designed to be used as standard 2 channel or stereo amplifiers. The design incorporates a fan forced cooling sys |
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A4332 |
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- 5 inputs
- 6 output zones
- Direct 100V line output
- 4Ω output
- Individual zone attenuators (max 40W)
- 24V DC operation
- LED VU meter
- 2 year warranty
- Volume, treble and bass controls for each input
- Over current protection
- Over temperature protection
- Short circuit protection
- Telephone paging input
- Phantom power
- Selectable microphone priority
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Housed in a heavy duty 3RU rack mount cabinet, these mixer amplifiers include a host of features and are ideally suited for schools, offices, medical suites, office/factory units etc. |
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A4322 |
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- 5 inputs
- 4 output zones
- 70V or 100V output
- 4Ω or 8Ω output
- 24V DC operation
- Over temperature, over current and short circuit protection
- LED VU meter
- 2 year warranty
- Telephone paging input
- Chime and siren
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An economical solution for smaller installations including offices, workshops, smaller shopping arcades, schools etc. |
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A4324 |
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- 5 inputs
- 4 output zones
- 70V or 100V output
- 4Ω or 8Ω output
- 24V DC operation
- Over temperature, over current and short circuit protection
- LED VU meter
- 2 year warranty
- Telephone paging input
- Chime and siren
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An economical solution for smaller installations including offices, workshops, smaller shopping arcades, schools etc. |
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A4310 |
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- 85% efficient class-D power performance.
- Low power consumption & heat generation.
- Compact 1RU case housing four individual amplifiers.
- Individual dedicated protection circuitry.
- Individual cooling systems for each channel.
- LED indicators for signal, peak, protection and power.
- Constant 100V floating output per channel (ie no reference to earth).
- Compatible with Altronics line monitoring equipment.
- 24V DC battery backup power.
- 240V AC operation.
- Remote control on/off switching function.
- In-built bandpass filter for 80Hz and 16KHz signals.
- Built-in short circuit, overload, high temperature protection.
- 2 year warranty
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Excellent for multizone public address paging and background music systems! Engineered to meet the growing demands of venues such as RSL clubs, taverns, hotels, conference & function centres enabling individual program sources to play to different rooms |
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A4390A |
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- Multi-stage thermally cued fan cooling
- Input signal presence indicator
- Output peak limited
- 2U 19" rack mount (ears included)
- 3 pin XLR input, 3 pin XLR loop out
- Level control rear mounted
- 100V, 70V and 4 - 16Ω outputs
- Thermal and overload protection
- 240V AC, or 24V DC operation
- 300mA 24V battery trickle charge
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This booster is ideal for installations requiring a high power zone amplifier. Ideal for use in shopping centres, pedestrian precincts, public transport facilities and convention centres. |
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A4330 |
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- 5 inputs
- 6 output zones
- Direct 100V line output
- 4Ω output
- Individual zone attenuators (max 20W)
- 24V DC operation
- LED VU meter
- 2 year warranty
- Volume, treble and bass controls for each input
- Over current protection
- Over temperature protection
- Short circuit protection
- Telephone paging input
- Phantom power
- Selectable microphone priority
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Housed in a heavy duty 3RU rack mount cabinet, these mixer amplifiers include a host of features and are ideally suited for schools, offices, medical suites, office/factory units etc. |
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A4573 |
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 Designed & manufactured in Australia.
- Since 1976 Redback public address products have been manufactured in Perth, Western Australia by Altronics. With over 40 years experience in the commercial audio industry, we offer consultants, installers and end users reliable products of high build quality with local product support. Read more about our Australian Made products
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Optional Plugin Board to suit the Phase 4 range of Redback Amplifiers. It generates pre chime, bell, alert and evacuation tones. The alert tone can function continuously, or switch to evac tone after a preset time delay (adjustable 30 seconds to 4.5 minu |
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A4116 |
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- 15W RMS per channel
- 1 music input (3.5mm)
- 1 auxiliary input
- 4-16Ω output
- 240V ac operation
- Includes Power Supply
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Packed with features, this super compact stereo amp is ideally suited to classrooms, boardrooms, boutiques, reception areas or anywhere a small functional stereo system is required. Designed in close consultation with several leading AV installation compa |
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A4212 |
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- 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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Hearing induction loop amplifiers are installed to greatly enhance the listening experience of people using hearing aids. They are commonly installed in public areas which are generally noisy, making it difficult for hearing impaired users to hear clearly. |
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A4173A |
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- Rugged heavy duty construction
- 19” rack mount
- Bridgeable, parallel or two channel stereo operation
- Earth lift switch
- 3 pin XLR inputs.
- Short circuit protection with indicator
- Overload protection with indicator
- Clipping prevention circuitry with indicator
- Variable speed fan forced cooling
- Muting circuit for switch on/off
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This new series dubbed the "Apple" range have been completely redesigned by Biema to offer vastly improved cooling, efficiency and circuit protection. This range is designed to function as a stereo or high power single channel amplifier for use in foreground sound reinforcement ie: pubs, clubs, cinemas and multi-function venues. |
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A4022 |
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- Balanced microphone input
- Built in VOX muting circuit
- Stereo line inputs
- Bass and treble tone controls
- 240V AC operation
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Designed to meet the requirements of small to medium sized professional public address installations, delivering an output power of 30W RMS. |
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A4314 |
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- 85% efficient class-D power performance.
- Low power consumption & heat generation.
- Compact 1RU case housing four individual amplifiers.
- Individual dedicated protection circuitry.
- Individual cooling systems for each channel.
- LED indicators for signal, peak, protection and power.
- Constant 100V floating output per channel (ie no reference to earth).
- Compatible with Altronics line monitoring equipment.
- 24V DC battery backup power (per channel).
- 240V AC operation.
- In-built bandpass filter for 80Hz and 16KHz signals.
- Built-in short circuit, overload, high temperature protection.
- 2 year warranty
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Excellent for multizone public address paging and background music systems! Engineered to meet the growing demands of venues such as RSL clubs, taverns, hotels, conference & function centres enabling individual program sources to play to different rooms |
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A4312 |
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- 85% efficient class-D power performance.
- Low power consumption & heat generation.
- Compact 1RU case housing two individual amplifiers.
- Individual dedicated protection circuitry.
- Individual cooling systems for each channel.
- LED indicators for signal, peak, protection and power.
- Constant 100V floating output per channel (ie no reference to earth).
- Compatible with Altronics line monitoring equipment.
- 24V DC battery backup power (per channel).
- 240V AC operation.
- Remote control on/off switching function.
- In-built bandpass filter for 80Hz and 16KHz signals.
- Built-in short circuit, overload, high temperature protection.
- 2 year warranty
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Excellent for multizone public address paging and background music systems! Engineered to meet the growing demands of venues such as RSL clubs, taverns, hotels, conference & function centres enabling individual program sources to play to different rooms |
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A2777D |
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- 5.2-channel 80 Watt surround sound with Dolby TrueHD and DTS-HD
- 4K120AB and 8K60B HDMI (with future update) with HDCP 2.3 and eARC (4 in/1 out)
- Dolby Vision™, Hybrid Log-Gamma and BT.2020
- Supports enhanced media and gaming - ALLM, VRR, QFT, QMS (with future update)
- Wi-Fi®, AirPlay 2®, Spotify Connect and Voice Control
- MusicCast multi-room audio app control
- Pandora®, Spotify, Amazon Music, SiriusXM, TIDAL, Deezer, iHeartRadio and more
- YPAO automatic room calibration
- MusicCast Surround-capable: add optional MusicCast speakers to provide wireless surrounds for a 5.1-channel setup
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5.2 channel AV receiver with CINEMA DSP 3D, HDMI 4-in/1-out, wireless surround.Movie watchers are catered for with 4K Ultra HD as well as HDMI 2.0, BT.2020 compatibility and HDCP 2.2, HDR video. 80W RMS per channel. Four HDMI inputs. Wireless rear speaker capability. |
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A4250A |
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- Compact 1RU 19” rack mount design
- Balanced mic or line input
- 100V line output
- Phantom power
- Overload limiting
- Over voltage limiting
- On demand fan cooling (60W and 100W versions only)
- Over temperature shut down protection
- Dual input connectors
- Variable input sensitivities
- 240V AC / 24V DC operation
- Australian designed & manufactured
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These compact 1RU rack mount amplifiers are suitable for both stand alone PA system use, or as zone amplifiers in larger systems requiring local inputs. All models operate on 240V ac or 24V dc for battery backup operation. |
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A4320 |
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- 5 inputs
- 4 output zones
- 70V or 100V output
- 4Ω or 8Ω output
- 24V DC operation
- Over temperature, over current and short circuit protection
- LED VU meter
- 2 year warranty
- Telephone paging input
- Chime and siren
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An economical solution for smaller installations including offices, workshops, smaller shopping arcades, schools etc. |
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A4395A |
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- Robust design incorporating latest Mosfet technology
- Very Low noise and distortion
- 70V, 100V and 4-16Ω outputs
- 240V AC or 24V DC operation
- 24V DC @ 1 Amp output for external devices
- 300mA battery trickle charge
- Adjustable input level sensitivities
- Bass and Treble controls
- Phantom power on microphone input (XLR Input 1)
- Multi stage thermally cued fan cooling
- Output Peak Limited
- Thermal Overload protected
- Signal Presence Indicators
- Fault Indicators
- Power Status Indicators
- Rack Mountable (suits 19 inch racks)
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The Redback A 4395 is a 500 Watt Mixer amplifier for installations requiring a high power zone amplifier. Ideally suited for use in shopping centres, pedestrian precincts, public transport facilities and convention centres. |
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A1922 |
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- Powered by 24V DC
- 100V line audio output
- Line level audio input
- Short circuit, overload and thermal cutout protection
- Bolt-in chassis construction
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These modules are designed for use in emergency evacuation systems and are powered by an external 24V DC source. They accept a line level audio input and produce a 100V line output via a transformer. The modules feature short circuit, overload and thermal cutout protection, and are constructed on a steel chassis.
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A4377A |
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- 3 Balanced microphone inputs / 3 Aux inputs / 1 Music input
- Robust design incorporating latest Mosfet technology
- Very Low noise and distortion
- 100V standard with optional 70V and 4-16Ω outputs
- 240V AC or 24V DC operation
- VOX muting on inputs 1 and 2 (Switch selectable internally)
- Adjustable VOX level sensitivities
- Bass and Treble controls
- Tape Output
- Phantom power on microphone inputs (DIP switch selectable internally)
- Multi stage thermally cued fan cooling
- Output Peak Limited
- Thermal Overload protected
- Signal Presence Indicator
- Half power mode when overdriven
- Fault Indicators
- 24V DC Power Status Indicator
- Optional Alert/Evac module with voice over message for emergency tones (A 4573)
- Optional remote volume (With A 4373 Digital volume control module fitted and external A 2280B wall plate)
- Rack Mountable (suits 19 inch racks) with optional A 4376 rack ears
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This 125 Watt 4 channel mixer amplifier is specifically designed for applications requiring up to three microphone inputs, without compromising output power and overall performance. The amplifier feature three inputs which can be configured for either microphone or line level operation. |
