● Over 20 years work experience in audio products field on hardware design, deep understanding of architecture and electronic circuit theory of consumer and professional audio products. Very familiar and much more experience in electronic circuit hardware design (analog and digital circuit) of audio products.● With 5 years working experience in factory (GPE-HZ) on manufacture engineering before, it makes products developed meet the specification and performance, but also very suitable for production. It makes help to increase production efficiency.● Deep research, professional knowledge and experience on professional analog amplifier electronic circuit （Class-AB and Class-H）and architecture design due to so many years working experience on QSC professional amplifiers.