SEIKAKU is a leading company in the Audio field. We set up the factory in China in 1990. The QC system of our factory complies with the ISO9001:2000, ISO14000…etc. Our test lab is approved by TUV organization according to ISO guide 25, and our products confirm well to the safety experience as EU and US regulations (CE, EMC, R&TTE, GS, CB, cTUVus and cETLus). There are four business modes in Seikaku. SHOW brand for P.A. system; TOPP PRO brand for Professional Music Gear; OEM/ODM business and I2DSP Security System.