Castle Group

GA904 Electronic Orange - Entertainment Noise Controller

SKU: 01GA904

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Dealing with noise complaints need not be a problem any more with the Castle GA904 Electronic Orange, a device designed to stop entertainment noise getting too loud by measuring PA and club noise levels and warning you of excessive noise levels. Both the Warning level and the Trigger level can be customised to the levels that the conditions of your Entertainment Licence require.


Did you know you can also:

Entertainment Noise Orange GA904
Castle Entertainment Noise Controller GA904 Entertainment Noise Control Beacon GA904 Castle Castle Electronic Orange GA904

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Product Specification unless deselected above

Brand Castle Group
Application Noise Level Indicators
Weightings A
Available Outside the UK? Yes
In danger of losing your licence through Noise Complaints? Are you complying with the Health & Safety legislation - The solution is simple, effective and inexpensive.

Let the music play ! - with The Castle Electronic Orange Noise Controller.

Everybody likes to party, but it's all too easy to let music levels get out of hand - and when the morning comes, complaints come rolling in and your licence is on the line. The Castle Electronic Orange Noise Controller will keep your premises free from the risk of complaints and closure. The unit is connected to the main power supply for the amplification equipment, the Electronic Orange flashes a warning when pre set sound levels are exceeded.

If the operator doesn't turn down the sound within a pre-set time, an automatic cut off kicks in. The music never has to stop, because a warning light flashes if the limit is exceeded, and only when this is ignored does the power supply cut off to prevent further abuse. Pioneered by Castle, this unit, approved by The Environmental Health, is used by thousands of venues through the World, and the latest model is as easy to use, robust and reliable as ever.

  • Easy to Install
  • Simple to Operate
  • Anti-tamper Protection

Technical Specification

Measuring Range 75 dB to 112.5dB steps switch selectable 2.5dB variable calibration control (factory set)
Trip Time User Adjustable 1 to 10 seconds
Power Switching The GA904 will switch a 240v 30A load or external contacter
Operating Mode Manual: Tripped unit must be manually reset. Auto:Tripped unit automatically resets after trip time.
Override: Power output is maintained even during trip condition. Manual, Auto and Override are key switch selectable.
Frequency Weighting 'A' and 'B' in accordance with IEC651 Type 2
Time Weighting Slow Response (1000mS)
Displays Bar Graph display showing sound pressure level.
Trip indication LED's showing source. Warning Indication. Manual reset prompt.
Outputs AC: 1Vms for FSD. output impedance <1000r
Short circuit protected Power ±12v, 0V Power for accessories.
Microphone Pre-polarised ½" (12.7mm) Condenser Microphone Sensitivity 12mV/Pa Capacitance 15pF
Preamp output impedance 550R Cable Mounted
Dimensions and Weight 200W x 240H x 600mm

Downloads and Datasheets

GA 904 Downloads


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