Pre-shipment inspection (PSI) is one of the many quality control tests conducted by Guangzhou Gisen Audio Equipment Factory. This inspection is based on standard QC testing or on customer request. Based on these criteria and procedures, samples are randomly selected and defects are checked. For us, pre-shipment inspection is an important step in the quality control process and a way to check the quality of the best surround sound amplifier before shipment.

Gisen Audio is a large manufacturer for dsp amplifier. As one of Gisen Audio's multiple product series, toroidal transformer amplifier series enjoy a relatively high recognition in the market. Gisen Audio [homemade sound amplifier is manufactured not only complying with the domestic quality standards but also with the international quality and safety standards on LED lights, such as CE. The home power amp certification also shows the good quality of toroidal transformer amplifier. It is built to be water-resistant thanks to the stainless steel shell.

It is widely admitted that our company has been always sticking to the tenet of home theatre power amplifier. Welcome to visit our factory!