QSC Subwoofer AD-SS28TW-BK with two 8 "woofer weather resistant, power 250W Continuous (700W peak), with 120Hz low-pass filter with friction compensation. It has a 70V / 100V transformer with 8Ohm bypass. Cabin in black. Dimensions (HxWxD) 404 x 251 x 603mm - 19.5 kg.
Q-sys AD-DWL.Sub, is a professional outdoor passive dual 5.25-inch landscape subwoofer with up to a total of 160W, with a built-in 120 Watt multi-tap 100V / 70V transformer, sensitivity at >84 dB @ 1 W/1m, max SPL 106dB cont. and 112dB peak and 48Hz - 200Hz frequency response.
Focal Littora 1000 ICW SUB10, indoor/outdoor, in-wall/in-ceiling subwoofer with 10 inch speaker driver for use in yachting and humid spaces. The recommended amp power is between 100 – 300W at 8Ω with 90dB sensitivity and 25Hz-500Hz frequency response.
Focal 1000 IWSUB Utopia, passive closed-back in-wall subwoofer with 3 x 6.5 (16.5cm) Bass with ‘W’ cone and recommended amplification power up to 100 - 750W at 8Ω and 200 - 1500W at 4Ώ, 83dB sensitivity and 40Hz – 2.5kHz bandwidth at +/-3dB. Works with 1000 IWLCR UTOPIA