广州市以利法音响设备有限公司是一家集组配、销售、工程为一体，主营高品质的专业功放和专业音箱，并提供OEM、ODM服务。以利法音响公司是非凡、充满活力的，是严谨、负责的结晶！秉着诚信、高效、创新的经营理念.。同时，我们有一支生机勃勃、勇于开拓的团队。公司成立以来，我们凭着富于创造力的设计理念、诚恳热忱的服务态度、积极进取的事业精神、诚实守信的企业信誉，赢得客户的信赖和支持；我们更重视客户的意见，客户的意见是我们成长的动力之一。本公司欢迎广大用家来代理。并在广东省区域承接演艺吧、慢摇吧、迪士高、KTV、录音棚、多功能视频会议和演播室、大小型音乐喷泉工程项目。设计配套安装，公司有较强的技术力量和施工能力、并设有专门的客户服务部与维修部等为客户提供完善的售后服务。
　　本次向市场隆重推出YQ系列，并获得国家知识产权局颁发的外观设计专利证书。 

　　特点：
　　2U标准机箱，内置完善的保护系统（短路保护、过流保护、直流保护、射频保护、过热保护、自动限幅保护、开关机防浪涌冲击电路保护、开机声音自动延时保护）2个进口轴承风扇，机器发热后自动加速，加强散热效果。
　　 2U standard case, build-in perfect protection system (Short circuit protection, over current protection, DC protection, RF protection, overheating protection, automatically limiting protection, against surge impact circuit protection when power-on and power-off, power-on sound delay protection), two imported bearing for fan. Automatically accelerated after the machine heated, Enhanced cooling effect
　　内置先进的压限保护电路，压限范围大（输入0.775V-10V）功放不会有失真信号传输出，更加不会有直流输出，保证了音箱的音质，更加保护了喇叭单元不受直流的危险。人性话的开机音量渐渐增大功能，避免瞬间大功率冲击音箱，有效保护音箱。完善的保护电路保证了整机的长时间正常运行。
　　 Built-in advanced voltage range protection circuit, wide range (input: 0.775V-10V), amplifier will not have distorted signal transmission out, especially no DC output. Ensured the sound quality, highly protected the speaker unit from direct current. Humanization designed boot volume function by gradually increased. Avoided high-power instant impact to speakers, effectively protected the speakers. Perfect protection circuit ensures the normal operation of the equipment for a long time.
　　内部大点解电容采用国产军工级别的厂家定做，变压器采用B1硅钢片跟优质的铜线绕制而成，极大的降低了变压器的温度，保证持久的给功放提供最大的能量。功率放大管我们采用日本原装东芝老管，2SA1943/2SC5200.保证最好的声音跟稳定性。
　　Internal electrolytic capacitor was made by military-class factory. Transformer adopt B1 silicon steel which was wrapped by high-quality copper wire, highly reduced the temperature of the transformer, To ensure constantly provide maximum energy to amplifier. Power amplifier adopts original Toshiba branded first batch tube, Model: 2SA1943/2SC5200. Ensures the best voice and stability
　　整机采用先进的电路单元的组合，使整机声音效果，稳定性都得到保证，可以适用任何场所。
　　后面板设有输入灵敏度调节开关，三档可选（0.775/1V/1.44V）.后面板还设有模式转换开关，（立体声模式、并接模式，桥接模式）
　　The whole equipment adopts advanced circuit units, to ensure the whole equipment’s voice effect and stability.  It can be applied to any locations. The rear panel has an input sensitivity adjustment switch, three gears optional (0.775/1V/1.44V). The rear panel also featured a mode switch.  (Stereo mode,parallel mode ,bridged mode)