ORDER NO.PIONEER CORPORATION 4-1, Meguro 1-chome, Meguro-ku, Tokyo 153-8654, JapanPIONEER ELECTRONICS (USA) INC. P.O. Box 1760, Long Beach, CA 90801-1760, U.S.A.PIONEER EUROPE NV Haven 1087, Keetberglaan 1, 9120 Melsele, BelgiumPIONEER ELECTRONICS ASIACENTRE PTE. LTD. 253 Alexandra Road, #04-01, Singapore 159936PIONEER CORPORATION 2006S-W1EXRRV3274POWERED SUBWOOFERS-W1EXTHIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).Model Type Porew Requirement RemarksS-W1EX LFXTW AC 110VS-W1EX MLTXTW AC 220-230VFor details, refer to "Important Check Points for Good Servicing".T-ZZS JAN. 2006 printed in Japan