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AUDIO COMPRESSOR LIMITER
HIGH PERFORMANCE KIT RANGE
Perfect Audio Everytime.....
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 Peak Limiting with AGC Action.
Very Low Noise (-75 dBu S/N Ratio).
30Hz-15KHz Frequency Response.
Standard 0dBu 775 mV rms Output.
Better than 1 mS Attack Time.
Very Low Distortion (0.2% at Limiting)
Selectable Pre-emphasis (50uS/75uS/none).
Compression Level Indication Via 3 LED's.
Accepts Audio Inputs up to +24dBu 12Vrms.
Single Supply Operation 11-16V DC.
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In any sound broadcasting system the audio level must be controlled to prevent over modulation.
The current trend is for broadcast stations to transmit a constant level of audio optimised to
100%. This gives the listener 'loud' audio and prevents constant re-adjustment on the receiver
volume control. The Aareff Limiter Compressor is specifically designed to achieve constant 100%
modulation without any over modulation using a FM Transmitter. The result is a professional
sound on your station output with all music and speech inputs.
The circuit operates the audio gain around 3 individual time constants. These control a smooth
AGC (Automatic Gain Control) combined with a very fast attack on audio signal peaks.
Audio compression and output level are constant for input levels between -6dBu and +24dBu.
This kit also contains selectable Pre-emphasis.
NOTE: STEREO REQUIRES TWO UNITS
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