ลำโพงซับเบส ALTO TS312S Powered Subwoofer 12″ - Music Space (Thailand)
Alto TS312S
Amazon.com: Alto Professional TS315S | 2000 Watt 15 Inch Powered Portable PA Subwoofer With Selectable DSP Output Modes For Matching With Companion PA Speakers : Musical Instruments
Used Alto Professional Truesonic 3 TS312S 12" Powered Subwoofer - SKU#1300567 TS312SUB