It is a promise of Guangzhou KAIXU Audio Equipment Co., Ltd that the users will know how to operate digital amplifier once they see it. Detailed instruction is offered. This is a way for the users to learn how to operate it. The after-sale service team is always online to answer the questions.

KAIXU has been prestigious in R&D and production of quality stereo power amplifier. We are a manufacturer with years of good reputation. The professional amplifier series is one of the main products of . The design of KSA hifi audio amplifier is completed by incorporating a sophisticated 3D modeling manufacturing system which allows our designers to create an amazing product in short time periods. The sound of this product is loud enough for outside usage. With its abrasion resistance property, this product allows for many times of washing or a lot of people's movements. It has the advantage of excellent acoustic signal conversion.

We are looking forward to building long-term business cooperations with all our customers. In the following business activities, we will keep honest and respectful in communication and interactions, and we will consider establishing regular lines of communication. In such ways, we hope to make progress in improving relationships with clients.