For regular multi-channel amplifier products, samples are free except you will bear the express cost. So an express account such as DHL or FEDEX is needed. We keen for your understanding that we have a lot of samples to send every day. If all the freight are borne by us, the cost will be very high. In order to express our sincerity, as long as the sample is confirmed successfully, the freight of the sample will be offset when the order is placed, which is equivalent to free delivery and free shipping.

Guangzhou Gisen Audio Equipment Factory has occupied large toroidal transformer amplifier market for its high quality and professional service. Gisen Audio's power amplifier series contains multiple sub-products. Gisen Audio homemade sound amplifier is made of cost-efficient certified materials and exclusively crafted according to requirements. Its overload protection proves to guarantee long-term service life.  Gisen Audio is dedicated to provide our customers with the best music amplifier throughout the country. It can support multiple devices via the interface.

our company fantasies to precede over several firms in music amplifier industry. Check it!