(*1) 0 dB = 1 VPower SourceAC mains, 50/60 Hz (use of the supplied AC adapter)Power Consumption15 W or lessReceiving FrequencyChannel A: 3.100 MHz Channel B: 3.350 MHzReceiver SensitivitySignal to Noise Ratio: 50 dB or more(40 dBμV input, 1 kHz modulation, ±4.8 kHz deviation)Signal to Noise Ratio61 dB or more (60 dBμV input, ±4.8 kHz deviation, A-weighted)Tone Squelch Frequency32.768 kHzInfrared Receiver Input75 Ω, BNC jack × 2 (Infrared wireless receiver's power source: 24 V DC, 220 mA max. in total of 2 terminals)Number of Connectable Conference Receiver4 (YW-1022/YW-1024)16 (IR-700D, YW-1024 × 4)OutputChannel A and B: -10 dB(*1) (±4.8 kHz deviation, at volume level max.), 600 Ω, electrical balanced, 3 pole phone jack.Note: Channel A switchable to mixer output.Frequency Response100 Hz - 12 kHzOperating Temperature-10 ℃ to +50 ℃ (14 ゜F to 122 ゜F)Operating Humidity30 % to 85 %RH (no condensation)FinishCase: ABS resin, blackDimensions210 (W) × 44 (H) × 210.9 (D) mm (8.27" × 1.73" × 8.3")Weight630 g (1.39 lb) (unit only)AccessoryAC adapter (DC cord length: 1.5 m (4.92 ft)) (*2) …1, AC Power cord (2 m (6.56 ft))(*2) …1, Rubber foot …4,Cord with a phone plug (1 m (3.28 ft)) …1, Color label (6 colors) …1OptionRack mounting bracket: MB-WT3MB-WT4 (for mounting with the optional IR-700D together)