10 inch 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 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. 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. Included accessories: hanging hardware, Euroblock connector, terminal weather boot.