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About the BL550
The Definitive Technology BL-550 is a compact outdoor bollard speaker designed for residential or commercial landscape audio. It uses an upfiring 5.25-inch mineral-filled woofer and 1-inch aluminum oxide tweeter, plus a 5 x 8-inch passive bass radiator for improved low-frequency output. The enclosure is rated IP56 for all-weather use and includes flexible installation options such as ground spikes, a base plate, and concrete-screw mounting. It supports direct-in connection with multitap settings for 70V, 100V, and 8-ohm systems.
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