-Rugged all-steel surface-mounted enclosure; off-white finish Built-in 1W amplifier Full range 8" cone speaker for excellent intelligibility Built-in volume control with detachable knob Available as flat-fronted (AMBSQ1) or with 12.5° angled front (AMBSL1) Self-contained 1-watt amplifier Interfaces with standard 600-ohm telephone line Knockouts for Wiremold® Mounting hardware included (toggle bolts wood screws pluggable screw terminals volume knob)
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