Master unit microfon

TOA TS-820 Central Unit,
Power Source 100 - 240 V AC, 50/60 Hz (use of the supplied AC adapter)
Power Consumption 72 W
Current Consumption Max. 3 A DC (when 24 V DC is supplied from the accessory AC adapter)
Carrier Frequency Reception:
Audio Channel 1: 7.35 MHz
Audio Channel 2: 8.10 MHz
Audio Channel 3: 8.55 MHz
Audio Channel 4: 9.15 MHz
Control Channel: 6.45 MHz
Transmission: Audio Channel: 1.95 MHz
Input MIC: -60 dB*, 600 Ω, unbalanced, Ø 6.3mm phone jack (2P)
AUX: -20 dB*, 10 kΩ, unbalanced, Ø 6.3mm phone jack (2P)
Output LINE: -10 dB*, 10 kΩ, unbalanced, Ø 6.3mm phone jack (2P)
REC: -10 dB*, 10 kΩ, unbalanced, RCA pin jack
HEADPHONE: Ø 3.5mm mini jack (3P: monaural)
Equalizer Input/Output Input: -20 dB*, 10 kΩ, unbalanced, RCA pin jack
Output: -20 dB*, 10 kΩ, unbalanced, RCA pin jack
Number of Connectable Chairman/Delegate Units 64 units
Number of Connectable Infrared Transmitter/Receiver Units Up to 4 units (with the use of distributor, up to 16 units connectable when they are all TS-905, and up to 12 units when they are all TS-907, or TS-905 and TS-907 are used in combination)
Infrared Transmitter/Receiver I/O Terminal BNC jacks
External Control Connection Terminal D-sub connector (9 P, male) / USB-B selectable
LED Indicator Audio signal receiving indicators 1 - 4 CH, Data signal receiving indicator, External control priority indicator, External control communication indicator, Battery indicator (flashes when a Chairman/Delegate unit's battery nears complete discharge), Recording status indicator, Format in-progress indicator, Access indicator, Internal memory status indicator, USB memory status indicator, Remaining internal memory capacity warning indicator, Remaining USB memory capacity warning indicator, Short-circuit indicator
Record Switch Recording start button, Recording stop button, Format button
Recording Ports USB-A (for USB memory devices) and USB mini-B (for PCs)
Recording Function Recordings can be made to a USB memory device (**) or the internal memory.
Recording format: MP3 (MPEG-1 Audio Layer-3), monaural
Sampling frequency: 32 kHz, Bit rate: 128 kbps
Function Switch No. of open microphones setting switch: 1/2/3/4
Mic-off setting switch: TIME OUT ON/OFF
Speech priority selector switch: FIRST (First-in-first-out priority), LATEST (Last-in-first-out priority), FIRST: FIXED NEXT: LATEST (Priority fixed for the first unit, and last-in-first-out for all other subsequent units)
FBS switch: AUTO/OFF/EXT
Operating Temperature 0 ℃ to +40 ℃ (32 ゜F to 104 ゜F)
Operating Humidity 90 %RH or less (no condensation)
Finish Panel: Surface-treated steel plate, black, 30% gloss, paint
Weight 2.8 kg (5.95 lb)
Accessory AC adapter (Cord length: 1.8 m (5.91 ft) DC cord, and 2 m (6.56 ft) detachable AC cord)…1
Option Rack mounting bracket: MB-TS920