Mr.Wilson Wong's new tonearm--Ortofon AS-309i match with Ortofon AP-1(Adaptor from Ortofon Type A change to Type G size) and Ortofon SPU Meister Silver A MC cartridge,installed on Micro Seiki RX-5000 turntable with platter stabilizer. Other tonearms are: SAEC WE-407/23 tonearm with Ortofon Kontrapunkt C MC cartridge (on first arm position), Grace G-704 tonearm with Ortofon MC 30 Super II MC cartridge.