350W 8-Zone IP Network Power Amplifier
8 x Independent 100V Zones • 350W Total Power • LCD Display • Infrared Remote • EMC Priority • Fire Alarm Linkage
T-77350Z
High-power 8-zone amplification for demanding applications. The T-77350Z delivers 350W total power across eight independent 100V zones, combining multi-zone routing with built-in amplification in a single 2U chassis. Ideal for hospitals, large schools, conference centers, and other venues requiring substantial power per zone.
| Model Number | T-77350Z |
| Product Type | 8-Zone IP Network Power Amplifier |
| Form Factor | 2U, 19" Rack Mount |
| Total Output Power | 350W (shared across 8 zones) |
| Zone Outputs | 8 x Independent 100V Constant Voltage |
| Zone Power Allocation | Dynamic / Programmable (per-zone limits configurable) |
| Display | LCD (Character/Graphic) |
| Network | 10/100Mbps Ethernet (RJ45) |
| Audio Protocols | TCP/IP, UDP, HTTP, RTP, RTSP |
| Audio Codecs | MP3, WAV, PCM |
| Frequency Response | 80Hz – 16kHz (±3dB) |
| THD+N | < 0.5% (1kHz, rated power) |
| S/N Ratio | > 85dB |
| Input Sensitivity | MIC: 5mV, AUX: 300mV |
| Remote Control | Infrared (included) |
| Priority Control | EMC input (contact closure), highest priority |
| Fire Alarm Linkage | Dry contact input, programmable zone activation |
| Intelligent Power Management | Auto standby per zone, configurable timeout |
| Cooling | Variable speed fan, front-to-rear airflow |
| Protection | Overload, short circuit, over-temperature, DC fault |
| Power Supply | AC 100-240V, 50/60Hz, internal |
| Dimensions (WxDxH) | 483 x 340 x 88 mm (2U) |
| Weight | 14.8 kg |
| Operating Temperature | 0°C – 40°C |
| Humidity | 10% – 90% non-condensing |
| Certifications | CE, FCC, RoHS |
The T-77350Z has a total power budget of 350W shared across eight zones. Power can be allocated dynamically – for example, Zone 1 can use 150W for a large hall while Zones 2-8 share the remaining 200W, or all zones can be limited to 43W each. Per-zone power limits are configurable via software to prevent overload.
The T-77350Z is a high-power 8-zone IP network power amplifier that combines multi-zone routing with 350W of built-in amplification. It receives network audio, routes it to any of eight independent 100V zones, and amplifies it internally – all in a single 2U rack chassis. This is the mid-power option in the T-7700Z series, offering 350W for demanding multi-zone applications.
Complete Zone Amplification: Each of the eight zones is a dedicated 100V constant voltage output with its own amplifier stage. Zones can be activated individually, in groups, or all simultaneously. No external amplifiers are needed, reducing installation complexity and cost.
350W Power for Larger Zones: With 350W total power, the T-77350Z can handle demanding applications such as:
Flexible Power Distribution: A hospital might allocate 100W to a large cafeteria, 80W to a waiting area, and 30W each to five clinic zones (100+80+150=330W). Power limits are software-configurable per zone to match specific requirements.
Fire Alarm Integration: Dedicated fire alarm linkage inputs allow emergency messages to override any zone with highest priority. Programmable evacuation patterns comply with international life safety standards.
Individual zone control with built-in 350W amplification. No external amplifiers needed. Per-zone volume and source routing.
Direct interface with conventional fire panels. Programmable zone activation patterns for phased evacuation.
Per-zone auto standby reduces energy consumption. Zones power up only when audio is present, with configurable timeout.
Full-function IR remote for zone selection, volume, source switching, and emergency override. Range: 8 meters.
| Zone | Output Type | Max Power (Configurable) | Example Allocation |
|---|---|---|---|
| Zone 1 | 100V Constant Voltage | 0-350W | Gymnasium: 120W |
| Zone 2 | 100V Constant Voltage | 0-350W | Auditorium: 100W |
| Zones 3-8 | 100V Constant Voltage | 0-350W each (total ≤350W) | Classrooms: 6×20W = 120W |
Power limits are set via T-7700RP software. The amplifier automatically manages total power to prevent overload. Example total: 120W + 100W + 120W = 340W (within 350W budget).
| Trigger | Programmable Actions | Example |
|---|---|---|
| Fire Input 1 | Activate zones 1,2,3 at 100% volume, play emergency message | Zone 1-3 evacuation |
| Fire Input 2 | Activate zones 4,5,6 at 100% volume, play alternate message | Zone 4-6 evacuation |
| EMC Input | Activate ALL zones, highest priority, overrides fire inputs | Total evacuation |
EN54 compliant
programming available
Each zone has independent power management. Zones enter standby (near-zero power consumption) when no audio is present for a configurable period (5-60 minutes). Zones power up instantly (within 0.5 seconds) when audio is detected. This can reduce overall power consumption by up to 70% in multi-zone installations.
| Model | Total Power | Zones | Output Type | Form Factor | Best For |
|---|---|---|---|---|---|
| T-77240Z | 240W | 8 | 100V | 2U | Schools, retail, offices |
| T-77350Z | 350W | 8 | 100V | 2U | Hospitals, large schools, conference centers |
| T-77500Z | 500W | 8 | 100V | 3U | Stadiums, factories, airports |
The T-77350Z has a total power budget of 350W shared across 8 zones. Ensure total speaker wattage connected to all zones does not exceed 350W. Use the T-7700RP software to set per-zone power limits and prevent overload. Example: 8 zones × 43W speakers = 344W total (within budget).
Zones can be logically grouped in the T-7700RP software. For example, create an "All Call" group that activates zones 1-8 simultaneously, or "East Wing" group with zones 1,2,3. Group paging can be triggered from any T-7702A/M paging microphone with a single button press.
Server → Switch → T-77350Z → Zone 1-8 (100V) → 100V Speakers per zone
No external amplifiers needed. Each zone connects directly to its own speaker line. Fire alarm panel connected to fire input triggers programmed evacuation zones. T-7771 wall panels provide remote volume control per zone.