Specification	Details
Brand	TOA
Model	TS-911
Product Type	Chairman Unit
System Type	Infrared Wireless Conference System
Power Source	24 V DC
Power Supply	From optional TS-918 Expansion Unit
Current Consumption	Max. 60 mA
Modulation Method	Frequency Modulation
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
Base Language Channel	1.95 MHz
Translation Language Channel	2.25 MHz
Microphone Terminal	XLR-4-31 Type
Monitor Speaker	8 Ω, 0.2 W
Headphone Output	Ø3.5 mm Mini Jack × 2
Connection Terminal	RJ45 Connector
Main Functions	Priority Speech, Voting, Volume Control
LED Indicators	Speech, Voting Status, Power
Operating Temperature	0°C to +40°C
Operating Humidity	90% RH or Less, No Condensation
Finish	ABS Resin, Gray Metallic, Semi-Gloss
Dimensions	210 × 68.6 × 152 mm (W × H × D)
Weight	Approx. 570 g
Compatible Microphones	TS-903 / TS-904

The TOA TS-911 Chairman Unit is designed for the TOA TS-910 infrared wireless conference system, providing the chairman with priority control, clear audio monitoring, and convenient meeting management. It is suitable for boardrooms, conference halls, government offices, corporate meeting rooms, training centers, and other professional conference environments.

The TS-911 features a dedicated Priority Speech function, allowing the chairman to take precedence over Delegate Units when necessary. It also includes monitor volume and headphone volume controls for convenient audio adjustment during meetings.

The unit supports voting functions, with LED indicators displaying voting status and results. A built-in monitor speaker and headphone connection provide flexible audio monitoring for the chairman.

The TS-911 can be connected to the TOA TS-910 Central Unit through the optional TS-918 Expansion Unit and supports either the TS-903 standard microphone or TS-904 long microphone. Its professional control features make it an effective chairman unit for wireless conference system installations in Bangladesh.