主要規格 Mains voltage 100 to 240 VAC ± 10 % Current consumption maximum 0.9 A (100 VAC) to 0.3 A (240 VAC) DC supply to contribution units 24 V ± 1 V (current limited) Loudspeaker volume control mute (50 dB att.) + 10 steps of 1.9 dB Limiter threshold level to unit 10 dB above nominal level loudspeaker / headphone Gain reduction due to number of open microphones (NOM) ÷ NOM ± 1 dB Nominal input (85 dB SPL) < 0.5 Max. input (110 dB SPL) < 0.5 Dimensions including feet(H x W x D) 84 x 361 x 143 mm(3.4 x 14.2 x 5.6 in) Height of feet 5.5 mm (0.22 in) Mounting tabletop (portable or fixed)19-inch rackflush mounting Weight 1.5 kg (3.3 lb) Material (top) polymer Material (base) painted metal Color (top) charcoal (PH10736) Color (base) black (PH80007)