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数字音频功率放大器Digital power amplifier

4D系列音频功率放大器时间:2022-02-07 23:10:35 浏览次数:

专利产品号:ZL 202023122983.6

QPFX音响科技自1994年八月中秋前夕制造出第一对音箱一年后制造出了适合自己的第一台功率放大器至今,已超过30年来不断研发更新,至今制造出了全球首创新型智能数字音频功率放大器,其功能及性能就远领先于世界专业音响行业,QPFX的音响系统具有专业高保真音色,不但声音清晰饱满通透,工艺也很精湛。行业内独一无二的先进技术.QPFX专业数字功率放大器自2018年成功面世以来,经过两年不断电负载测试通过后,于2020年上市就受到了全球50多个国家的商标保护,目前产品已销往七十多个国家。(该音频功率放大器光纤可以直接互联带光口输出的单模单纤数字调音台,可以省略调音台到功率放大器中间的所有设备)。


Since the first pair of speakers on the eve of the Mid-Autumn Festival in August 1994, QPFX Audio Technology has been continuously developed and updated for more than 30 years, and has manufactured the world's first innovative intelligent digital audio power amplifier, which is far ahead of the world's professional audio industry. Unique advanced technology in the industry. Since its successful launch in 2018, QPFX professional digital power amplifiers have been protected by trademarks in more than 50 countries around the world since they were launched in 2020 after passing two years of uninterruptible load testing, and the products have been sold to more than 70 countries. (This audio power amplifier's optical fiber can be directly connected to a single-mode single-fiber digital mixer with an optical output, allowing all equipment between the mixer and the power amplifier to be omitted.).


优点:该音频功率放大器光纤可以直接互联带光口输出的单模单纤数字调音台,可以省略调音台到功率放大器中间的所有设备

Advantages: This audio power amplifier's optical fiber can be directly connected to a single-mode single-fiber digital mixer with an optical output, allowing all equipment between the mixer and the power amplifier to be omitted.



1、远程网络开关机、可编程群组电源管理 1. Remote network power on and off, programmable group power management     

2、远距离音频光纤传输20-120km(标配单模单纤20公里收和发双模块配置) 2.Long-distance audio fiber optic transmission 20-120km (standard single-mode single-fiber 20km transmit and receive dual-module configuration).

3、SC端口光纤直接输入 3. SC port optical fiber direct input

4、热备份输入音频信号自动切换  4、Hot backup input audio signal automatic switching

5、宽电压AC90V-260V输入 5. Wide voltage AC90V-260V input

6、故障保护时降低输出功率(不断音)不停机功能 6. Reduce the output power (uninterrupted) non-stop function during fault protection

7、四路输出功率定阻定压可转换 7. The four output power constant resistance and constant voltage can be converted

8、机联可多达500台 8. The machine connection can be up to 500 units

9、可通过远程管理调控主机 9. The host can be controlled through remote management     

10、4.3寸彩色触摸屏 10. 4.3-inch color touch screen

11、内置中英文界面 11. Built-in Chinese and English interfaces

12、整机具有防潮、防锈、绝缘处理 12. The whole machine has moisture-proof, anti-rust and insulation treatment             

13、4路Dante输入 13. 4 Dante inputs

14、4路AES输入 14. 4 AES inputs

15、4路DSP精细处理器 15. 4-channel DSP fine processor

16、FIR全通滤波器 16. FIR all-pass filter    

17、PWM超大功率设计 17. PWM ultra-high power design

18、4路XLR模拟输入 18. 4 XLR analog inputs

19、定阻输出4-16欧姆 19. Constant resistance output 4-16 ohms

20、定压输出70V、100V  20. Constant voltage output 70V, 100V

21、RS485及RS232端口 21. RS485 and RS232 ports

22、USB本地调节 22. USB local adjustment

23、本机具备四口网络交换机功能 23. This machine has the function of four-port network switch

24、输入灵敏度三档调节 24. Input sensitivity three-level adjustment

25、内置QPFX音箱模式 25. Built-in QPFX speaker mode

26、工作状态温度显示 26. Working status temperature display

27、功放具有热备份功能 27. The amplifier has a hot backup function

28、内部电路板采用绝缘、防潮、防腐蚀处理 28. The internal circuit board is insulated, moisture-proof and anti-corrosion

29、息屏状态信号自动触发  29. The screen status signal is automatically triggered

30、自带8路POE网络交换机  30. It comes with 8 POE network switches

31、机体采用IP55防水处理  31. The body is IP55 waterproof


          优点:该音频功率放大器光纤可以直接互联带光口输出的单模单纤数字调音台,可以省略调音台到功率放大器中间的所有设备

Advantages: This audio power amplifier's optical fiber can be directly connected to a single-mode single-fiber digital mixer with an optical output, allowing all equipment between the mixer and the power amplifier to be omitted.

技术参数Technical Specifications:

4D900              4D1200              4D1500

立体声功率(RMS)8Ω Stereo Power:

4X900W              4X1200W             4X1500W

立体声功率(RMS)4Ω Stereo Power:

4X1500W             4X2000W             4X2800W

桥接功率8Ω Bridged Power:

2X2800W            2X3700W             2X4000W

输入电平Input Level:

0dBu/6dBu/12dB三种模式 

输入方式(光纤)Input method (optical fiber):单模单纤  SC端口  Single-mode single-fiber SC port
输入方式Input method(DANTE):         DANTE

输入连接器Input Connector:

XLR母

输入阻抗Input Impedance:

20KΩ平衡

输入共态抑制比Common Mode Rejection Ratio (CMRR):

>80dB

输出连接器Output Connector:

Speakon座

信噪比Signal-to-Noise Ratio (SNR):

>100dB

通道隔离度Channel Separation:

-75dB

总谐波失真Total Harmonic Distortion (THD):

<0.3%(20 Hz-20 kHz 800W)

频率响应Frequency Response:

20Hz-20KHz(+/-0.3dB,1W/8Ω)

冷却方式Cooling Method:

无级调速风扇,气流由前到后Stepless adjustable fan, airflow front to back

功放保护方式Amplifier Protection Method:

  短路、断路、直流电压、过热、过压、射频、超低频保护、故障时降低功率不断音、不停机功能

Short circuit, open circuit, DC voltage, overheating, overvoltage, radio frequency, ultra-low frequency protection, power reduction during fault without muting, uninterrupted operation function

电源规格Power Supply Specifications:

交流电压90-270V /50-60Hz

机箱材料Chassis Material:


设备尺寸(长X宽X高)Device Dimensions (L×W×H):

 420X483X88mm

机器重量Machine Weight:

 15.5KG              15.5KG               15.5KG

运输重量Shipping Weight:

 18.2KG              18.2KG              18.2KG