Dongguan Musicrown Electronic Technology Co., Ltd is a Subsidiary of Longjoin International Holdings Limited. Musicrown has been dedicated to the R&D, manufacturing, selling of high technology, high complexity and high quality professional audio products. Products covered professional (Digital Signal Processing) DSP KTV pre-amplifier, Digital Loudspeaker management system, Digital Audio & Video matrix processor, Network audio processor, Digital power amplifiers(Class D technology), Equalizers and more.