A 4480B • 8 Input to 8 Output Audio Switcher

Brings together paging, balanced line and stereo line level sources into a single multi zone mixer controller. With remote wallplate control, programmable presets and local zone input wallplates it is incredibly flexible for large scale multi source environments.

This cost effective, PA/BGM control system is suitable for clubs, pubs, gyms etc. It is ideally suited as a central controller for all audio inputs and outputs in a multi zone installation. The design is highly flexible and easily set up by the installer. No special training or complex programming is required.  Each input and output can be custom labelled and displayed on the front panel screen. This shows at a glance, which input is selected to which output.

The system is configured with 8 auxiliary source inputs, 1 emergency paging input and 1 alert/evac input. Inputs 1 and 2 are 3 pin XLR/dual RCA. All other inputs are dual RCA only. Each zone can be fitted with a touchscreen controller (A 4462/4 or A4495/6) for easy source selection and level control. Plus a local zone source input wallplate such as A 4931 or A 4935. Up to six user presets are provided for recalling regularly used configurations. These can be selected via the front panel or A4476 preset selector wallplate.

Use with Redback A4660 paging console.

The A4660/61 touchscreen LCD paging console provides paging control to a host of Redback products. No matter which product it is connected to, the console provides a central point of control for paging activation with useful features in-built such as pre and post announcement chimes, adjustable automatic microphone gain (AGC) control and output level control.

Key Features:

• 8 Stereo RCA line inputs (mono mixed)
• Adjustable line input sensitivity 0.3/0.7V
• Balanced mic or RCA line on inputs 1 and 2.
• Bass, treble and volume for all line inputs.
• 8 Balanced 3 pin XLR line outputs
• Individual volume controls for all 8 outputs
• Colour TFT screen for easy review of settings.
• Up to 8 paging consoles per system.
• All call priority line input – ideal for RSL clubs for Ode playback or telephone paging.
• Program isolate function for each zone.
• Alert/evacuation/pre chime tone generator (complies to AS1670.4)
• Emergency balanced input
• Custom source & zone names
• Four programmable presets
• On-screen help menu system
• Tampering lockout feature
• 24V DC operation
• 19” rack mount (2 unit)

 

Preset Operation

Six user presets are provided for recalling regularly used configurations. Presets one to four are user programmable and can be recalled at any time. Preset five is “last setting” prior to a preset being loaded. This is an easy way to revert to a previous system setting. Preset six is a backup of the initial system configuration. Presets may be selected from the front panel or remotely by the A 4476 preset selection wallplate.

Input and Output Operation

The system can be configured with up to 8 zone paging consoles, 8 local zone inputs, 1 emergency paging input, 1 alert/evac input, and 8 auxiliary audio source inputs. Each auxiliary input has selectable sensitivity – 0.3 to 0.7V.

Auxiliary inputs can be switched to any zone or combination of zones. Each auxiliary input has a volume, treble and bass control, plus a signal presence indicator. A programmable display indicates which input is selected to which outputs.

For remote selection of auxiliary inputs the A 4475 wallplate may be connected via Cat 5 cable to each zone (max 1 per zone). This wallplate enables selection of any auxiliary source, plus local level adjustment.

A local input wallplate (A 4478) can be placed in each zone for connection to a local mic or line audio source. This wallplate connects to the A 4476 program selection wallplate.

Tamper proof volume controls and signal presence indicators are provided for emergency paging and alert/evac signals. Closing contacts activate alert/evac signal.

Volume controls are provided for each output. All 8 outputs consist of 3 pin balanced line level XLRs.

Program Isolate

This function allows ‘blocking’ of selected RCA input audio sources to selected zones. This does not affect paging or tones.

Priority Muting Operation

A priority muting system ensures appropriate signals are routed to zones depending on the condition of the system. For example in emergency paging mode, all inputs, including alert/evac signals are muted for live emergency announcements through the paging microphone. In alert/evac mode all inputs are muted so that tones and recorded messages may be played in all zones.

When a local input is connected any auxiliary source being played in that zone will be muted.

In zone paging mode auxiliary signals will be muted for transmission to the selected zone. To prevent unwanted interruptions during functions or events, zone paging may be prohibited from the front panel via the PA on/off function.

 

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Developed, designed & assembled in Australia.
Since 1974 Redback PA products have been manufactured in Perth, Western Australia by Altronics. With over 50 years experience in the commercial audio industry, we offer consultants, installers and end users reliable products of high build quality with local product support.

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Backed by an industry leading 10 Year Manufacturer Warranty.
Our Redback products have a long tried and tested history of bulletproof reliability. Altronics offers a 10 Year Warranty on all Australian Made Redback products. Our local in-house service department has all the know how to answer technical queries and provide timely service.