gisenaudio.com,multi channel power amp,We receive important feedback on how our existing customers' experience Gisen brand by conducting customer surveys through regular evaluation. The survey aims to give us information on how customers value the performance of our brand. The survey is distributed biannually, and the result is compared with earlier results to identify positive or negative trends of the brand. Gisen provides multi channel power amp products that are selling well in United States, Arabic,Turkey,Japan,German,Portuguese,polish,Korean,Spanish,India,French,Italian,Russian,etc. Gisen,Our company main produces 2 channel amplifier home audio,compact amplifier home,home audio amp.