Please contact us immediately once you have found the imperfections of toroidal transformer amplifier. If you have received our second-best product,we will arrange professional staff to verify it. Return of goods or exchanging goods service is provided for you. Before shipment, we will conduct strict test on each product to ensure the quality of product. We pay close attention to the sales service, which can solve problems including handling imperfections of the goods.

Guangzhou Gisen Audio Equipment Factory has always made every effort to develop premium marketed power amplifier and satisfy every customer's requirement. top 10 power amplifiers is the main product of Gisen Audio. It is diverse in variety. The superior performance of the product is crowd-pleasing in the market. The product undergoes a series of tests and proves to have high resistance to impact and friction. People who live in humid areas will love this product because it will not get rust even it frequently contacts with moisture. The anti-dust design of the product prevents it from attracting small articles.

Our staff always adhere to the principle of customer first. Get quote!