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Audio Level Master Audio AGC

ALM673 Stereo Audio Level Master AGC.

$1,005.00

Audio Level Master Audio AGC
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Part Number: ALM673
Title: Audio Level Master Audio AGC. (Dual Mono or Stereo)
Category: A/V Baseband
Industry: TV/Radio Broadcast, CATV Cable Industry

The ALM673 Audio Level Master stabilizes audio volume level by adjusting gain so that the output volume remains constant even if the input level is not constant. A switch on the back enables the Audio Level Master to
operate in the stereo mode, or as two independent monaural Audio Level Masters.

Product Description

Audio Level Master Audio AGC
Download Specifications
Click here to download the manual in Word 6.0 format. Download Related Article

Part Number: ALM673
Title: Audio Level Master Audio AGC. (Dual Mono or Stereo)
Category: A/V Baseband
Industry: TV/Radio Broadcast, CATV Cable Industry

Description:

The ALM673 Audio Level Master stabilizes audio volume level by adjusting gain so that the output volume remains constant even if the input level is not constant. A switch on the back enables the Audio Level Master to operate in the stereo mode, or as two independent monaural Audio Level Masters. The ALM673 differs from the ALM672 in that it contains two control systems so that is can operate in the dual mono mode.

Each ALM673 card can handle one stereo channel or two monaural audio channels. Very sophisticated, program dependent, level control systems prevent “ducking” of background sound when doors slam or guns go off, and also prevents background sound from becoming louder just because foreground speech stops.

A dual L.E.D display monitors the degree of program control being exerted on each of the two channels.

Each of the two channels can control input variations over a 30 dB range while holding output volume within 0.5 dB.

The ALM673 is equipt with a plug-in screw terminal connector to make installation a snap!

The Audio Level Master is a broadcast quality, full professional grade, auto- matic audio level control system, built with the price and quality conscious Cable Operator in mind. Each ALM673 card contains one full stereo or two mono channels, and three cards fit in one PMS610 mainframe. Since the PMS610 main- frame only occupies one rack space (1.75 inches), the Audio Level Master needs very little of the scarce rack space in the cable head-end. Thus one PMS610 mainframe can provide audio level control for up to 6 monaural channels or three stereo channels. The switch enables easy conversion from monaural channels to stereo channels.

 

INPUT SPECIFICATION
Average Program Level (APL) -20 to +8 dBm (adj. range)
Peak Program Level (PPL) 10 dB above APL
Impedance Balanced 600 Ohm
Common Mode Supression 40 dB or better
THROUGHPUT
Frequency Response 40 Hz to 15 Khz, 0.5 dB
Compression Ratio 30 dB input range reduced to 1 dB output change
Compression Gating No change in gain during input level drop-out
Distortion 0.03 %THD maximum
Signal-To-Noise 75 dB
Compression Artifacts None Perceptible
Compression System Dual Band
OUTPUT
Average Program Level (SET) 0, +4, or +8 dBm
Peak Program Level 10 dB above APl
Impedance 600 Ohm load,balanced floating
METERING
Control Indication Dual L.E.D. indicator (3dB steps)
MECHANICAL
Card Fits in one of three spaces in the 1.75″ high PMS610 mainframe
Audio Connectors Detachable Connector Screw Terminal Connector

Additional Information

Weight 3 lbs
Dimensions 12 x 12 x 6 in