We take quality assurance measures in many steps of the production of best surround sound amplifier. We have a QC team to carefully monitor the production process to ensure manufacturing equipment operates at the optimum level. And before they leave our facility, we will test and inspect the quality and performance of finished products rigorously to ensure you receive 100% qualified and zero-defect products. And we seek for a lean production method to reduce time, errors, and costs to produce high-quality products for you - for an excellent price/performance ratio. This is how we ensure consistent quality, high performance, and high value that exceed customers’ expectation.

As a professional manufacturer for power amplifier, Guangzhou Gisen Audio Equipment Factory insists on high quality. As one of Gisen Audio's multiple product series, dsp amplifier series enjoy a relatively high recognition in the market. Gisen Audio 1u digital power amplifier is technologically improved in the CRI. Thanks to its modified total internal reflection(TIR) capacity, the illumination brightness of the product has increased significantly. Its surface is well processed by a layer of paint to resist rust. As the leading toroidal transformer amplifier manufacture, Gisen Audio is specialized in producing high quality products. The product involves the users in pure analog sound.

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