This large Tier 3 in-ceiling loudspeaker is a three-way model featuring an RDT III bass driver, IDC II midrange driver and IDC II tweeter with UD Waveguide II. It has a cut out diameter of 248 mm and revolutionary patented Quik-Link speaker cable connector and Tri-Grip II for quick, simple, reliable and strong installation and fitting. Features Ideal for installations where high-performance acoustics are desired Three-way design Mid-frequency ‘mid-pod array’ 1 x 1" (25 mm) IDC II tweeter with UD Waveguide II for lifelike sound 1 x 9" (229 mm) RDT III bass driver 1 x 4" (102 mm) IDC II midrange driver Patented Quik-Link speaker cable connector for quicker installation (UK patent application no. 2216966.8) Tri-Grip II for easy and secure fitment This high-performance, large Tier 3 in-ceiling loudspeaker is designed to deliver pristine, engaging acoustics where pristine sound quality is desired. It is a three-way model featuring the very latest acoustic technologies from Monitor Audio. This really is the last word in installed performance, featuring an RDT III bass driver, IDC II mid-range driver and IDC II tweeter with UD Waveguide II. This high-end combination ensures levels of acoustic transparency and detail found in Monitor Audio’s premium loudspeaker ranges, where much of this acoustic technology was developed. It has a cut out diameter of 248 mm and uses the patented Quik-Link speaker cable connecter, which revolutionises the ease and speed of speaker installation. Tri-Grip has also been evolved for simple, reliable and strong fitment. Optional square grille can be used with this model. Specifications System Format: 3–Way Channels: 1 Frequency Response, Installed (-6dB): 45 Hz – 35 kHz Nominal Impedance: 6 ohm Minimum Impedance (20Hz to 20kHz): 4.8 Ohm @ 2 kHz Sensitivity (2.83Vrms@1m, Installed): 89 dB Maximum Peak SPL* (single speaker @ 1m Z-Weighted): 119 dB Continuous Power Handling (RMS into Nominal Impedance, Pink Noise with 6dB Crest Factor): 150 W Recommended Amplifier Power (RMS into 8 OHM, Music Signal): 60 – 225 W Drive Unit Complement: 1 x 9" (229 mm) RDT III bass driver, 1 x 4" (102 mm) IDC II midrange driver, 1 x 1" (25 mm) IDC II tweeter Crossover Frequency: LF/MF: 700 Hz, MF/HF: 3.5 kHz Mounting Depth: 157 mm (63/16") Cut-Out Hole Diameter: 248 mm (93/4") External Dimensions (Including Grille (H x W x D)): 278 x 278 x 161 mm (1015/16 x 1015/16 x 65/16") Weight (each): 5 kg (11 lb) Pre-Construction Bracket: CL-B Cabinet Finish: Matt black & Orange & Green Sold As: Single Unit Corner Switch: On/Off HF Switch: - /0/ + MF Switch: - /0/ +