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By certification 
W-820 Before The Class Effects
Majestic appearance, user-friendly interface, strong practicality, and easy operability W - 820 of 5.S brand is a six-way output professional pre-effect processor. W - 820 is an excellent mid frequency performer, and it integrates fine high-frequency extension and powerful and elastic low-frequency limit to produce perfect and balanced timber, thus enabling 5.S Audio loudspeaker to perform its best. The audio and power filter capacitor of W - 820 applies imported technologies from Germany. With elaborate material selection and delicate debugging, W - 820 possesses ultra-high stability and produces precise sound, thus making the best singing effect out of an enclosure in a private entertainment room in KTV clubs.
Majestic appearance, user-friendly interface, strong practicality, and easy operability W - 820 of 5.S brand is a six-way output professional pre-effect processor. W - 820 is an excellent mid frequency performer, and it integrates fine high-frequency extension and powerful and elastic low-frequency limit to produce perfect and balanced timber, thus enabling 5.S Audio loudspeaker to perform its best. The audio and power filter capacitor of W - 820 applies imported technologies from Germany. With elaborate material selection and delicate debugging, W - 820 possesses ultra-high stability and produces precise sound, thus making the best singing effect out of an enclosure in a private entertainment room in KTV clubs.
