T-7760B/T-77120B/T-77240B/T-77350B/T-77500B/T-77650B IP Network Power Amplifier Terminal

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Description:


Installed in weak power room or sub-control room of each broadcast management area, it has built-in high-fidelity power amplifier, suitable for the halls, corridor, outdoor and other areas of the program broadcast and local radio.


Features:


* Standard 19-inch rack design with a black anodized brushed aluminum panel, sturdy handles, and professional mechanical assembly craftsmanship, giving the machine a very high-end appearance.

* Industrial-grade 3.4-inch LCD display that clearly shows most dot matrix patterns and the machine's working status; supports infrared functionality, allowing content from the on-demand server program library to be accessed with an infrared remote control and enabling flexible and simple playback/pause control.

* With embedded computer and DSP audio processing technology.

* Built-in 1-channel network hardware audio decoding module supports TCP/IP and UDP, achieving network transmission of 16-bit CD-quality audio signals.

* Equipped with a high-fidelity professional digital amplifier, featuring a power output of 60W at constant voltage (100V).

* 1-channel AUX line input and 1-channel microphone (MIC) input interface with independent volume and bass/treble adjustment potentiometers, supporting local paging function in case of network disconnection.

* 1-channel EMC input interface, with emergency alarm voice signals passed through, having the highest priority.

* 1-channel auxiliary audio signal output interface for connecting external power amplifiers, featuring standard RCA connectors, making wiring connections very convenient.

* 1-channel three-wire audio control emergency override output interface, no need for power override.

* Built-in intelligent power management; automatically cuts off amplifier power when there is no music or call, and automatically turns on the amplifier power when there is a signal, with support for IP software programming to pre-open the amplifier power.

* Built-in 3-level priority settings:

EMC has the highest priority.

Network alarm signals take precedence over MIC, AUX, and network background music signals.

MIC takes priority over AUX and network background music signals.

AUX and network background music signals are at the same level with no priority.

* Supports mute intensity preset reduction functionality and background accompaniment preset functionality; includes status lamp display, such as level indicator, protection indicator, standby indicator, etc.

* Compatible with routers, switches, bridge gateways, Modems, Internet, 2G, 3G, 4G, and any network structure.

* Digitized product with easy expansion, location-independent, no need to add equipment for data center management, designed for shared network and installation convenience.

* Supports remote firmware upgrades for terminals through the broadcasting system, eliminating the need for local upgrades and reducing maintenance workload.

* Features USB playback functionality with USB drive input; when paired with an infrared remote control, it can play any song along with previous/next tracks, pause, stop, etc. (or select panel button operation).

* 1-channel short-circuit input that can be used to trigger preset voice prompts (or alarms) and can also be used to control access control linkage with short-circuit input signals.

* Comes with a 1-channel 100V constant voltage power backup input interface, allowing for flexible configuration of one main with multiple backups, multiple mains with one backup, or multiple mains with multiple backups for a highly reliable public ringing system.

* Built-in high-performance main/backup switching detection module, switching to backup power input within 0.3 seconds during network, power outages, or machine failures.

Specifications:


Model

T-7760B

T-77120B

T-77240B

T-77350B

T-77500B

T-77650B

Network interface

standard RJ45 input

Transmission rate

100Mbps

Supported protocols

TCP/IP,UDP

Audio format

MP3

Audio mode

16 bits CD sound quality

Sampling rate

8KHz~48KHz

EMC input sensitivity

775mV  (Unbalance)

AUX input sensitivity

350mV  (Unbalance)

MIC input sensitivity

5mV   (Unbalance)

AUX output amplitude

1000mV  2-channel RCA socket output interface

AUX output impedance

470Ω

Treble boost, attenuation

±10dB

Bass boost, attenuation

±10dB

USB interface

Maximum support 16G memory USB access

Output power*

60W

120W

240W

350W

500W

650W

Total power consumption**

30W

50W

80W

100W

110W

130W

Standby power consumption

<10W                                       

Frequency response

80Hz~16KHz +1/-3dB

Harmonic distortion

≤1%

Signal-to-noise ratio

>65dB

Output mode

100V constant voltage output

Short-circuit input

Dry contact input

Protection circuit

DC output, overload, over temperature, short circuit protection

Working environment temperature

5℃~40℃

Working environment humidity

20%~80% relative humidity, no condensation

Input power supply

~220V 50Hz

Dimensions

484 x 359 x 132mm

Net weight (Kg)

6.8kg

6.9kg

*This power is measured according to CEA-2006-B/CEA-490-A standard using 20ms pulse 1kHz sine wave at 1% total harmonic distortion

**Based on GB4943.1-2022 test method: measured under 1kHz sine wave rated load 1/8 power condition