The exceptional Cinergy Sub15 can be installed in the wall, stacked, or used as a floorstanding unit. Key Features: Mounted in-wall, stacked or used as a floorstander Sized to match the Cinergy 300 speakers Isolation feet to eliminate unwanted vibrations Bracing/securing brackets for use in hidden sound wall 1x 15" Ultra high Excursion C-CAM Driver THX® Certified "It is a dynamic, thrilling listen that really gets the adrenaline pumping." - StereoNET True cinema sound at home Better yet, you can combine it with other Cinergy Sub15 and Cinergy 300 units to create a hidden ‘sound wall’, delivering the kind of audio rarely experienced in the home. In order to achieve the full THX-certified experience, Cinergy Sub15 needs to be paired with Monitor Audio’s IA750-2 / IA750-4 installation amplifier. As such, the Cinergy Sub15 is only sold along with the IA750-2 / IA750-4, ensuring you enjoy great sound without compromise. Spotlight: Majik House Monitor Audio shines a spotlight on smart home technology experts Majik House, focusing on The Annexe, an immersive cinema Cinergy demonstration suite that utilises Monitor Audio's Cinergy speaker system, showing their clients what's achievable in a high-end home cinema. Specifications Category Details THX Certification THX® Certified Ultra (with 2 x Cinergy Sub15’s) System Format N/A Sensitivity (2.83 Vrms @ 1 M) 86 dB @ 100 Hz Maximum Linear SPL** (@1m, free space)** Continuous 109 dB, Peak 120 dB Power Handling (RMS) Continuous 600 W, Peak* 1500 W (Band limited***) Nominal Impedance 4 Ohms Minimum Impedance (20 Hz - 20 kHz) 4 Ohms Recommended Low Frequency Crossover Frequency 40 – 100 Hz (Low Pass) Recommended Amp Requirements (RMS) Must be used with IA750-2 / IA750-4 running C Sub Profile Bass Alignment Sealed Port Tuning Frequency N/A LF Extension, In Wall, With Port Bungs (-6 dB) N/A LF Extension, In Free Space, No Port Bungs (-6 dB) 17 Hz (IA750-2 / IA750-4) HF Extension (-6 dB) N/A Drive Unit Complement 1 x 15" Ultra High Excursion C-CAM Driver External Dimensions (Cabinet Only, H x W x D) 540 x 540 x 280 mm (211/4 x 211/4 x 11") External Dimensions (Inc Grille, H x W x D) N/A Max External Dimensions (Inc all Fittings, H x W x D) 567 x 540 x 280 mm (225/16 x 211/4 x 11") Weight 38.5 kg (84 lb 12 oz) Conditions Calculated from a peak voltage, this is not a true power figure but useful for comparisons. When used in an In-Wall or On-Wall configuration it is recommended to use the fitted port bungs to control bass output. This will effectively make the product a sealed box. Band limited with Low pass at 200 Hz, should only be used with IA800-2C and the correct speaker profile. Tested with a music-like noise signal with distortion and power compression remaining below audible limits. THX THX® Certified Loudspeakers. THX® and the THX® Logo are the property of THX® Ltd., registered in the U.S. and other countries. Warranty Lifetime