TOA TS-692L Delegate Unit — Professional Conference Audio for Every Participant at the Table
Think about the last time a meeting was derailed — not by the agenda, but by audio. Someone’s voice barely reaching the other end of the room. A delegate speaking into a microphone that picks up everything except what it should. Feedback squealing every time two units get too close. These are the kinds of frustrations that professional conference systems are built to eliminate, and the TOA TS-692L Delegate Unit addresses every one of them with quiet, dependable precision.
TOA TS-692L is a purpose-built delegate unit designed as part of TOA’s TS-690 Series wired conference system — one of the most widely installed conference platforms across government offices, corporate boardrooms, parliamentary chambers, training centers, and international meeting halls throughout Bangladesh and the broader Asian region. Its compact and lightweight design makes it easy to install and store, while its feature set is anything but entry-level.
At the heart of the unit is a 518mm long-neck gooseneck microphone — flexible, precisely positionable, and engineered to capture a delegate’s voice clearly without requiring them to lean awkwardly toward the table. The microphone is a unidirectional electret condenser type with a 1.8kΩ impedance, -37dB sensitivity at 1kHz, and a frequency response spanning 100Hz to 13kHz, delivering the kind of natural, articulate voice reproduction that translates directly into clear minutes, reliable recordings, and professional-grade proceedings.
Placing the speech button in the ON position permits the delegate to speak while simultaneously disabling the built-in speaker to prevent acoustic feedback. When the speech button is in the OFF position, the microphone is inactive but the speaker activates, allowing the delegate to monitor voices from all other conference units clearly. It’s a simple, intuitive design decision — but one that makes a significant difference in the flow of a live meeting where multiple participants are speaking in sequence.
For venues in Dhaka’s Motijheel business district, Chittagong’s commercial conference centers, or government assembly halls anywhere across Bangladesh — where conference systems need to be both professionally reliable and operationally straightforward — the TS-692L is a consistent, trusted answer.
TOA TS-692L Delegate Unit Specifications
| Specification | Details |
|---|---|
| Model | TOA TS-692L |
| Unit Type | Delegate Unit (TS-690 Series Wired Conference System) |
| Power Supply | 36V DC — supplied from TS-690 Central Control Unit |
| Current Consumption | 30mA (typical) |
| Microphone Type | Unidirectional Electret Condenser |
| Microphone Length | 518mm (20.4″) Gooseneck |
| Microphone Impedance | 1.8kΩ |
| Microphone Sensitivity | -37dB (0dB = 1V/Pa at 1kHz) |
| Microphone Frequency Response | 100Hz – 13kHz |
| Microphone Weight | Approximately 105g |
| Built-in Speaker Output | 200mW, 130Ω |
| Headphone Output | 3.5mm Stereo Mini Jack (3P: Monaural) |
| Volume Controls | Independent Speaker Volume + Headphone Volume Adjustment |
| Talk Button Operation | Momentary Push-to-Talk (Mic ON = Speaker OFF; Mic OFF = Speaker ON) |
| Priority / Chime Function | Single-tone chime activation with automatic muting of other units |
| Housing Material | High-impact ABS Resin |
| Color | Metallic Gray (upper) / Black (lower) |
| Unit Dimensions (W×H×D) | 145.3 × 70.7 × 150.5mm (5.72″ × 2.78″ × 5.93″) |
| Unit Weight | 800g (excluding microphone) |
| Operating Temperature | 0°C to +40°C |
| Operating Humidity | 90% RH maximum (non-condensing) |
| Compatible Central Unit | TOA TS-690 Series Conference Control Unit |
Why You Buy TOA TS-692L Delegate Unit
- TOA TS-690 Series Ecosystem — Scalable, Wired Reliability for Bangladesh’s High-Stakes Conference Environments — Wireless conference systems sound appealing until interference ruins a government budget session or a corporate AGM in Dhaka. The TS-692L’s wired design within the proven TOA TS-690 Series ecosystem eliminates signal dropouts, latency issues, and battery management headaches entirely. The unit is powered directly by the TS-690 central unit at 36V DC, drawing only 30mA per unit, which means dozens of delegate positions can run simultaneously on a single central unit without complex power infrastructure — giving system integrators and AV installers in Bangladesh a dependable, scalable platform for everything from a 10-person boardroom to a 100-seat assembly hall.
- Intelligent Feedback-Prevention Talk Button Keeps Meetings Professional and Audio Pristine — Acoustic feedback is the single most disruptive audio problem in conference room environments, and it’s entirely avoidable with the right hardware. The TS-692L’s speech button design automatically disables the built-in speaker the moment the microphone is activated, preventing the feedback loop before it starts — so delegates can speak confidently without audio engineers hovering over gain controls. When not speaking, the speaker reactivates automatically so every participant stays fully engaged with the ongoing discussion. For law firms, NGO conference rooms, municipal offices, and hotel meeting facilities across Bangladesh, this seamless talk-listen switching is a genuine operational upgrade.
- Long Gooseneck Microphone + Headphone Monitoring — A Complete Participant Audio Solution in One Unit — Most budget conference microphone units force a trade-off: either you get a short, inconvenient mic that captures poorly, or you sacrifice monitoring capability. The TS-692L includes both — a full 518mm flexible gooseneck microphone for natural, comfortable positioning regardless of delegate height or seating posture, plus a 3.5mm headphone jack with independent volume control for simultaneous audio monitoring or interpreter feed connection. Independent speaker volume and headphone volume adjustment give each delegate personal control over their listening experience — a feature that significantly enhances accessibility and comfort in longer sessions, multilingual conferences, and proceedings involving simultaneous interpretation.
FAQ
Q1: How many TOA TS-692L Delegate Units can be connected to a single TS-690 Central Unit?
Number of delegate units that can be daisy-chained to a single TOA TS-690 Central Control Unit depends on the specific TS-690 model and its loop line capacity. Each TS-692L draws only 30mA typical current at 36V DC, supplied directly through the conference system’s loop cabling from the central unit, which keeps per-unit power consumption low and allows larger installations without supplementary power injection in most standard configurations. For precise unit count limits for your specific conference hall size in Bangladesh, consulting a TOA-authorized installer to calculate the total loop load is always recommended before finalizing the system design.
Q2: Can the TOA TS-692L be used for simultaneous interpretation setups?
Yes, and this is one of the practical strengths of the TS-692L for international conferences and diplomatic meetings in Bangladesh. The 3.5mm stereo headphone output with independent volume control allows each delegate to connect personal earphones and monitor the floor audio or receive an interpreter feed at their preferred listening level, making it compatible with simultaneous interpretation distribution systems. For full multilingual interpretation functionality, this unit pairs with the broader TOA TS-690 series infrastructure, which supports interpreter console integration for professional international conference applications.
Q3: What is the difference between the TOA TS-692L and the TOA TS-691 Chairman Unit?
Both units belong to the same TOA TS-690 Series wired conference family and share the same physical design, power supply, speaker, and microphone specifications. The key distinction is functional: the TS-692L is the delegate unit, designed for general participant use with push-to-talk operation, while the TS-691 Chairman Unit carries additional authority — it includes a priority button that activates a single-tone chime and simultaneously mutes all delegate unit microphones, giving the chairperson immediate floor control during unruly sessions or emergency announcements. A complete conference system installation in Bangladesh typically combines one TS-691 Chairman Unit with multiple TS-692L Delegate Units, all managed through the TS-690 Central Control Unit.










