JBL Professional Control 45C/T 2-way Ceiling Mountable Speaker - 75 W RMS - 150 W (PMPO) - 5.25" Polypropylene Woofer - 0.75" Soft Dome Tweeter - 80 Hz to 17 kHz - 8 Ohm The 2-way speakers give smooth and precise production of sound to deliver an ultimate audio experience 8 Ohm impedance extracts maximum power so you will get more output from your speakers Listen to deep lows and euphoric highs with a frequency range of sound from 80 Hz-17 kHz Handles up to 75 W of RMS power 5.25" woofer driver size allows better stereo imaging with maximum sound feasibility 0.75" tweeter driver size provides crispier, well-detailed sound with maximum productivity Delivers reliable sound with 17 kHz maximum frequency response 88 dB sensitivity for efficient conversion of power into sound to produce adequate audio output Ceiling Mountable form factor for added reliability and dependability 9.40" depth to ensure dependable sound output efficiency