The 40-C has a scale allowing for 20dB of headroom in 1dB steps. The headroom scale is identical to the AES/EBU Digital Standard.
The Dorrough 40-C is a professional analog loudness meter, designed for modern stereo recording and broadcast requirements, and offering simultaneous average and peak program display, with separate ballistics and lightning-fast response. This meter is equipped with a 40-LED bar graph, allowing for 20dB of headroom in 1dB steps of resolution per LED.
Rack or console mounted Analog Loudness Meter with dual dedicated ballistics for simultaneous peak and average readoutMicrochip processor with accuracy of oscilloscope, ultra-fast response time of 600ms average, virtually instantaneous peak for seamless continuous display of peak/average relationshipIndividual left and right XLR inputs for stereo mixing applications, +4 dB factory-calibratedDisplay with 40 LED's providing 1dB resolution per LEDProprietary "C" scale with 20dB of headroom in 1dB steps, identical to AES/EBU digital standardXLR, 6 DIP switches for function assignments, mini 8-pin DIN port out for access to alarm relays, meter mode functions, and peak hold modes, standard with unit
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