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215-997-4300 927 Bethlehem Pk. Colmar, PA
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Ci250RRb-THX

Kef SP4040AA

Quick Specs

  • Type: Speakers
 
The Extreme Architectural Subwoofer

Engineered to deliver incredibly accurate and powerful bass, Ci250RRb-THX is the perfect addition to any music or home theatre system and an excellent partner to other KEF loudspeakers. Featuring an extra-long-throw 250mm (10 in.) bass driver with a massive 150oz magnet, Ci250RRb-THX delivers exceptional depth with the accuracy needed for an epic music, movie or gaming experience.

Feel the detail in the deep

In order to create the most immersive experience for music and movies, tremendous power is tempered with fine detailing. The extra-long-throw 250mm (10 in.) bass driver of Ci250RRb-THX, when driven by the KEF's DSP-equipped KASA500 amplifier , delivers both in spades.

As part of the Extreme Home Theatre line-up within KEF Architectural Speakers, Ci250RRb-THX is engineered to deliver high-fidelity sound experience for the most discerning music and movie lovers. Featuring a massive 150oz magnet in the motor system, Ci250RRb-THX delivers thunderous, low-distortion bass down to 20Hz with a maximum SPL of 109dB.
Frequency Response (±6dB) Open-backed 20Hz - KASA setting
Frequency Range (-10dB) 16Hz - KASA setting
Max SPL 109dB
Drive Units LF: 250mm (10in.) MF: - HF: -
Required Amplifier KEF KASA500
Recommended Low-pass Filter (Hz) 50Hz - 120Hz
Product External Dimension Diameter (dia): 346mm (13.62in.)
Depth: 153mm (6in.)
Cut-Out Dimensions Diameter (dia): 300mm (11.81in.)
Net Weight 5.6kg (12.3lbs)
Mounting Depth from Surface 147mm (5.8in.)
Optional Rough In Frame -
Ideal Rear Volume 140L
Minimum Rear Volume 70L
THX Certification THX ® Certified Ultra
Safety and Regulatory Compliance IP64
Ceiling Thickness (Maximum) 30mm (1.18in.)
Ceiling Thickness (Minimum) 6mm (0.24in.)
Remarks KEF reserves the right, in line with continuing research and development, to amend or change specifications. E&OE. THX, the THX logo, and Ultra are trademarks of THX Ltd. THX and the THX logo are registered in the U.S. and other jurisdictions. All rights reserved.

Quick Specs


  • Appearance

  • Type: Speakers

Professional delivery and installation is available for every product we sell. We would be happy to coordinate delivery and installation for you.

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