Generally, we offer audio amplifier along with warranty service, within a limited period. Within the warranty period, if there is any quality problem due to poor workmanship or others caused by us, contact us. We offer return, replacement, as well as maintenance services. If the problems happen after the warranty expires or are caused by your improper use, you can also contact us. We will try our best to solve your problem, which is what our after-sales service is for.

Guangzhou Gisen Audio Equipment Factory has the most advanced technology to produce power amplifier. Gisen Audio's dsp amplifier series are created based on unremitting efforts. The quality inspections of Gisen Audio 1u digital power amplifier have been carried out. These inspections are mainly smoothness, splicing trace, cracks, anti-fouling ability, stability, and durability. The product involves the users in pure analog sound. People say that it has been used for a long time, and no loose lines, inferior sutures or low-strength lines can be found. The product is sure to give entertainment a serious boost.

Gisen Audio holds the strong belief that serving customers with the most professional staff. Contact!