Description:
The ALM771 AUDIO LEVEL MASTER regulates audio program level so that the sound volume as perceived by the human ear will be consistent even when the source program material differs in amplitude by as much as 25dB. This 300:1 input power variation is corrected to within 0.5dB of the desired audio level.
Each ALM771 regulates the audio power level of one monaural channel. Two ALM771 modules can be connected together with a control jumper wire to enable them to be operated in synchronism to control the level of a stereo signal. |
Features:
INPUT SPECIFICATION
 LEVEL RANGE -14dBm to +24dBm
IMPEDANCE BALANCED BRIDGING (HIGH Z)
INPUT DISPLAY THREE COLOR L.E.D. INDICATORS
PROCESSING SYSTEM INFINITE RATIO LEVEL CONTROL
GATING BROADBAND GAIN WILL FREEZE WHEN LEVEL DROPS BELOW GATE THRESHOLD
TIME CONSTANTS PROGRAM DEPENDANT ( 3dB PER SECOND BELOW MAIN PLATFORM )
CONTROL SYSTEM SPLIT SPECTRUM
SIBILANCE CONTROL SYSTEM HIGH FREQUENCY LIMITING
OUTPUT LEVEL 0 dBm std., +4 dBm, +8 dBm, specify
IMPEDANCE LOW-Z, BALANCED
HARMONIC DISTORTION 0.1% THD ( .05% THD TYPICAL }
SIGNAL TO NOISE RATIO >80 dB, 40Hz-15kHz (0 NORMAL LEVEL)
FREQUENCY RESPONSE 0.0dB TO -0.5dB, FROM 30Hz-15KHz
AUDIO CONNECTORS REMOVABLE SCREW TERMINAL PLUG
PHYSICAL SIZE 1-1/2" x 3-1/2" x 4-1/2"
RF SHIELDING CAST ALUMINUM FULLY SHIELDED
RACK MOUNT REAR RACK MOUNT ANGLE BRACKET
POWER 24 VDC POWER CUBE (SUPPLIED)
|
