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Guard system for limiting the sound pressure level Tamper-proof 2-channel sound level limiter with measurement microphone to meet legal noise regulations e.g. in discothequesFor insertion between mixer and PA amplifier(s)Guards the speaker level and gradually attenuates the output signal to the preset maximum SPL, muting can be switched on3 operating modes can be selected: limiter with muting after 60 seconds, muting after 60 seconds, limiter Threshold control for setting the maximum admissible SPL3-color LED indicators warn of impeding muting when level is exceededConnection possibility for external warning indicators (optional)Inputs and outputs via balanced XLR connectorsTrimmer and mode selector for on-site calibration behind removable cover plateAll audio connectors and controls can be sealedRack installation, 1 UPower supply:230 V AC, 50 Hz Power consumption:10 W Frequency range:20-20000 Hz S/N ratio:>86 dB THD: 75 dB, -3 dB Gain:0 dB Mute gain reduction:-60 dB Max. input:20 dBu Limiter threshold:75 - 120 dB, variable Audio input:3-pin XLR (bal.) Input impedance:10/20 kohms (unb./bal.) Audio output:3-pin XLR (bal.) Output impedance:300/150 ohms (unb./bal.) Microphone input:6.3 mm jack Microphone type: dynamic with cardioid characteristics Indicator connectors:2 x RJ45 Dimensions:483 x 185 x 44 mm (19", 1 U) Weight:2.5 kg
