Bogen SEC4T 4" Compact 4W Ceiling Speaker 4W Maximum Power Rating, 4W Transformer, 4, 2, 1, 1/2, 1/4 & 1/8W Power Taps, Spring-Loaded Clamps for Installation, Works with 70V & 25V Amplifier Outputs, Metal Mesh Protects Speaker from Debris, White Enamel...