At Guangzhou Gisen Audio Equipment Factory, we have established an after-sales service team which is responsible for keeping close contact with customers and dealing with relevant problems occurred after products sale. If dsp amplifier can't work normally, please be rest assured that we have formulated solutions to cope with this problem. If the fault in the product is caused due to non-human damages or misuse, and more the product is still under warranty, then we are responsible for repairing the product or delivering a new one to you for free. If the fault is caused by improper use, then it would be different.

Gisen Audio is now the world's leading manufacturer home theatre power amplifier. Gisen Audio provides a wide range of top 10 power amplifiers for customers. The design of Gisen Audio home power amp covers some important design elements. They include function, space planning&layout, color matching, form, and scale. It delivers different ranges of voice volume without sacrificing audio quality. As the 'Quality First' is the principle of our company, the quality of this product has been fully guaranteed.The product can deliver lively dynamics and deep bass from warm and expressive tuning.

we dreams can lead the 1u digital power amplifier industry development. Contact!