The RS1001i is a 10-inch open-ceiling or surface mount subwoofer tuned for maximum output and performance across the operating bandwidth. By incorporating a 10-inch polypropylene woofer and a butyl rubber surround in a tuned and ported enclosure, this speaker delivers maximum low frequency response (38 Hz 450 Hz, - 10 dB, independently verified) and high SPL (105 dB). Mounting hardware includes high-quality UL listed cables and integrated SpeedClamp self-locking wire clamp for fast, easy and secure installation. For easy ordering, stocking and installation, the RS1001i-II-T includes a five-position tap switch for 25-, 70.7- and 100-volt applications with a transformer bypass position. SoundTube RS1001i-II-T Features One 10 inch (254 mm) polypropylene cone with a butyl rubber surround attached to a reinforced baffle. Baffle-mounted, flared and tuned ports for maximum efficiency and frequency response. High-output (105 dB) and maximum efficiency with an accentuated 70 Hz peak to maximize listener’s low-frequency experience. 150-watt, low insertion-loss transformer with an easy-access, five-position tap switch for 25/70.7/100-volt and transformer bypass positions. Weatherized components including powder-coated steel grille, hanging hardware and a durable ABS enclosure for indoor/outdoor applications. Includes UL listed hanging hardware with high-quality cables and integrated SpeedClamp self-locking wire clamp for fast, easy and secure installation. UL 1480 (UEAY) and CE-approved. Hanging hardware is UL 2239-approved. High-quality black or white painted finish. Included accessories: hanging hardware, Euroblock connector, terminal weather boot. Optional accessories: surface-mount bracket (AC-RS-SM8).