QSC AD-C8T-SWZB-WH Ceiling subwoofer, 8 inches woofer, 250 W RMS, with built-in 100V/70V transformer with taps 25/50/100/200 W, 8Ω switchable, sensitivity 92.3 dB, frequency response 53 Hz-195 Hz (–10 dB). Outer diameter 342.9 mm, cut-out diameter 305 mm, depth 368 mm – 10.1 kg. Color white (RAL 9010, paintable).
Focal 300IW6, passive 2-way in-wall speaker with 6.5-inch flax cone woofer and 1-inch Al/Mg inverted dome tweeter. The recommended amplifier power is between 25 - 130W at 8Ω and has 90dB sensitivity and 55Hz - 28kHz frequency response.
The Apart CM-20T W is a passive, in-ceiling, 2-way, plasti, 6.5" loudspeaker with up to a total of 30W at 8Ω, max SPL 104dB, sensitivity 86dB and it has 60Hz-20kHz frequency response. The installation depth is 80mm and the ceiling cutout diameter is 186mm.
The QSC AD-C.SUB is a passive, 6.5-inch Dual Voice Coil, Small Format Ceiling Subwoofer, with up to 100W / 20V, max SPL 100dB, sensitivity 86dB and 45Hz-150Hz frequency response.