Dorrough Model 12-AE Curved Dual Channel Analog Meter with Extended -43dB

The Model 12-AE dual channel analog meter has a scale from +14 to -43dB. It also features a phase warning light with access to a full scale correlator via the 3 position switch. Supplied with power supply - rack mounting options are also available separately. Two XLRs for right and left audio.

The DORROUGH Loudness Monitor displays, in an easy-to-read format, the actual energy content of the program material, regardless of frequency, while still indicating the peak amplitude of the complex audio signal. It allows the operator to ride levels in a manner such that all program material can be adjusted for equal perceived loudness while protecting the peak of the waveform. Now, one meter gives you more complete and more usable information than any combination of peak hold, VU and PPM indicators.

The DORROUGH Loudness Monitor integrates on the same scale, two ballistics, showing the relationship between the average and the peak. It simultaneously displays peak and average, and the relative difference, in dB, between these two ballistics is derived from the integration time of the persistence scale.

The operator has only to adjust the level until either the peak or persistence reference is reached. This will result in the maximum level, regardless of program content. Material with or without compression can easily be matched for the same listening level.