Can class d power amplifier sample charge be refunded if order is placed?
Most class d power amplifier sample charge can be refunded if order is confirmed. Please rest assured that Guangzhou Gisen Audio Equipment Factory always gives the maximum benefit to you.  Please contact our Customer Service to request a product sample and consult for the sample cost. Thank you for your interest in Gisen Audio products.
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With a unique vision, Gisen Audio is a leader in providing high quality music amplifier and services. dsp amplifier is the main product of Gisen Audio. It is diverse in variety. The product is zero-defect as we implement strict inspection on each stage of produciton process. It delivers different ranges of voice volume without sacrificing audio quality. The product has found increasingly wider application in the market due to its remarkable economic benefits. The state-of-art engineering reduces signal interference effectively.
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In the home power amp industry, the we brand will pay more attention to service quality. Get more info!

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