Bosch CCSD-CURD-CN CCS 1000 D control unit control host with recording and acoustic feedback suppression function F.01U.309.625

capacity expansion unit) 40 discussion devices per backbone, total of 80 discussion devices 24 V, maximum 5.2 A (short circuit protection) Discussion Device loudspeakers volume control 15 levels, with an increase of 1.5 dB per level (starting from -10.5 dB) Device’s Limiting Threshold Level 12 dB higher than rated level Gain reduction due to the number of microphones (NOM) turned on 1/SQRT (NOM) Sample rate 44.1 kHz Frequency response 30 Hz to 20 kHz Ethernet speed 1 Gb/s Rated input (85 dB sound pressure level) < 0.5% Maximum input (110 dB sound pressure level) < 0.5% XLR rated microphone input -56 dBV XLR microphone maximum input -26 dBV RCA rated input -24 dBV (+/- 6 dB) RCA maximum input +6 dBV Signal-to-noise ratio > 93 dBA THD <0.1% RCA rated output -24 dBV (+6/- 24 dB)