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New Production Process, New Material
The ProPlastic cabinet is specially designed for multi-purpose sound reinforcement. It is built with sunscreening, waterproofing and anticorrosive materials, to withstand long time operation for broad applications. With this exceptional advantages, our loudspeakers are suitable in all pro-audio applications. We employ the best materials in the ProPlastic  speakers, which enhances the power rating and reliability by almost 125%.

R&D
Thanks to our creative R&D team, we achieved an impressive technological experience. In the design labs we control the frequency and impedance curve of each loudspeaker design, producing sets of unique sound system. With  ideal magnet flux and resonance frequency, our products are analyzed and optimized by computer, to meet the perfect parameter expected.

Testing technique
Sound quality is found across the Protech product range, so performance testing of quality is critical when figuring the application, which is done through proprietary software in Protech. With the advanced anechoic chamber and listening room for test whether in normal or most abominable condition, the integrated evaluation is drawn strictly under the steps of visual test, acoustic test and simulated application test

Products Life Test
To test the reliability and life span of our products, we evaluate the finished product in a test booth at least 8m³ with the temperature condition per IEC 268-1.2 for at least 100 hours.