Power Source: 220 - 240 V AC, 50/60 Hz
Power Consumption: 20 W
Rated Output: 36 V DC, 480 mA
Input Selectable : MIC or AUX
Mic: -60dB*, 600 Ω, unbalanced, phone jack
AUX: -20 dB*, 10 kΩ, unbalanced, phone jack
Output        Recording: -20dB*, 10 kΩ, unbalanced, RCA jack
Number of Connectable Units Max. 24 units
Control        Priority speech chime: Operation of TS-691L-AS priority button activates a single-tone chime
Speaker restriction: Number of simultaneously-usable TS-692L-AS can be set up to 0-3
Automatic Mic-Off Function: OFF, 30s (selectable)
Operating Temperature        0 °C to +40 °C (32 °F to 104 °F)
Operating Humidity 90 %RH or less (no condensation)
Finish Panel: Aluminum, black. 30% gloss, paint
Case: Steel plate, black, 30% gloss, paint
Dimensions 420(W) x 96.1 (H) x 222.5(D) mm (16.54” x 3.78” x 8.76”)
Weight        2.7 kg (5.95 lb)
Accessory Power Cord (2m) x 1
Option Extension cord: YR-790-3, YR-790-10
Rack mounting bracket: MB-23B
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Plat Number : TS-690-AS