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ZC1681B-S480 Simple Multi-channel Loudspeaker Life Test System

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ZC1681B-S480 Simple Multi-channel Loudspeaker Life Test System

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0519-8852 0968 czshxu@163.com

Brief introduction

The ZC1681B-S480 speaker life tester is a multi-channel product of the ZC1681 series. It is a simple and easy-to-operate product designed for short-term verification before the product is shipped.

Basic skills

Maximum number of access channels: 480 channels, test parameters: sine, SD card player.
Aging test time: 0.1~9999 hours can be set arbitrarily.
Fault warning: The 480 LEDs on the panel display the location of the faulty channel and the cause of the fault at the same time.
Man-machine interface: 7-inch true-color LCD screen display, touch screen + keys for quick input.

New functions and features

There are many channels, simple operation, 480 channels can be started at the same time, open circuit, short circuit judgment and indicator light display.
The test signal is complete, built-in sine wave fixed frequency/sweep frequency, SD player can meet the requirements of speaker life test under different reference standards.
Modular structure design, contains 5 units, each unit has 6 modules, and each module contains 16 parallel Class D power amplifiers. Each power amplifier is independent of each other, which is convenient for maintenance and fault detection.

Technical index

Model	ZC1681B-S480
Power amplifier parameters
480 independent power amplifiers
Maximum output power per channel	≤3.5W
Maximum total output power	≤1800W
Frequency response	20Hz~20kHz（±0.25dB）
Total harmonic distortion (THD)	≤1%@1W 1K sine
Output impedance	≤0.15Ω
Load impedance	4~16Ω
Adjustable range of output voltage	0.10V ~ 4.00V (0.01V step), a total circuit setting voltage
Protective function	Short circuit protection, overheating protection
Sine wave signal generator
Frequency Range	20Hz~20KHz
Frequency accuracy	±0.01%
Frequency stability	Better than 60ppm
Point frequency/sweep frequency, can be set, sweep frequency can be linear or logarithmic
Sweep period	0~100 seconds
Audio player
Maximum supported sampling rate (KHz)	48KHz
Fully support FAT16, FAT32 file system, maximum support 32G TF card
Specify the file name to play
Signal voltage adjustment 0.01V step