Control 24CT Micro Plus - Ceiling loudspeaker, transformer version with 25 Volt, 4" TT, 0.75" HT, coaxial, power stages at 100 Volt: 25/12 Watt, 86 dB SPL (1 W/1 m), sheet steel bass-reflex housing, 150° dispersion range, no SonicGuard, mounting mate