KEF

KEF Ci250RRB-THX 10-Inch In-Ceiling Subwoofer, THX Ultra Certified

Model Ci250RRB-THX

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  • 10-inch (250 mm) in-ceiling subwoofer, THX Ultra certified
  • Frequency range (-10 dB) down to 16 Hz in the KASA setting; 109 dB maximum SPL
  • Requires the KEF KASA500 amplifier; recommended low-pass filter of 50 Hz to 120 Hz
  • Diameter 346 mm, 5.6 kg; cut-out diameter 300 mm; IP64
KEF Ci250RRB-THX in-ceiling subwoofer, Ci250RRB THX Front Grille Cutoff cae6ef41 c37b 426d a9b5 76087a1e3f0b
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  • Manufacturer Warranty
  • Fast UAE Delivery
  • Expert Project Support
Delivery, Warranty, Returns and Installation
Delivery
Fast UAE Delivery: Same-Day or Next-Day Delivery Available, Subject to Product Availability and Location. Free Delivery on Orders Above AED 2,000.
Warranty
Manufacturer Warranty with Local UAE Support where applicable.
Returns
B2B Orders are non-returnable. Please confirm product specifications and compatibility before ordering.
Installation
Site Surveys, System Design and Professional Installation are available across the UAE.
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Product details

Overview

What is the KEF Ci250RRB-THX?

The KEF Ci250RRB-THX is a 10-inch (250 mm) in-ceiling subwoofer certified THX Ultra. It needs the KEF KASA500 amplifier and reaches 16 Hz (-10 dB) in the KASA setting, with a maximum SPL of 109 dB. Installers in the UAE specify it for dedicated home cinema rooms.

The KEF Ci250RRB-THX is an architectural subwoofer with a 250 mm (10 in) driver. KEF lists the KEF KASA500 as the required amplifier, a recommended low-pass filter of 50 Hz to 120 Hz, and a safety and regulatory compliance rating of IP64.

Why this product

Key Benefits

  • Required amplifier

    KEF lists the KEF KASA500 as the required amplifier.

  • Low-frequency output

    KEF lists a frequency response of 20 Hz (±6 dB, open-backed, KASA setting), a frequency range of 16 Hz (-10 dB) and a maximum SPL of 109 dB.

  • THX Ultra certification

    KEF lists THX Certified Ultra.

  • Rear volume

    KEF lists an ideal rear volume of 140 L and a minimum rear volume of 70 L.

Use cases

Applications

  • Dedicated home cinema rooms

    The Ci250RRB-THX is a THX Ultra certified in-ceiling subwoofer for cinema rooms.

  • KASA500 systems

    KEF requires the KASA500 amplifier, which CorporateAV.ae lists separately.

Technical details

Technical Specifications

System

System Type
In-ceiling subwoofer
Bass Driver
250 mm (10 in)
Low-Pass Crossover Frequency
50 Hz to 120 Hz (recommended)

Frequency

Frequency Response (±6 dB)
Open-backed: 20 Hz (KASA setting)
Frequency Range (-10 dB)
16 Hz (KASA setting)

Performance & Coverage

Maximum SPL
109 dB

Power

Required Amplifier
KEF KASA500

Physical

Dimensions
Diameter 346 mm (13.62 in); depth 153 mm (6 in)
Cut-Out Dimensions
Diameter 300 mm (11.81 in)
Ceiling Thickness
Minimum 6 mm (0.24 in); maximum 30 mm (1.18 in)
Mounting Depth
147 mm (5.8 in) from the surface
Cabinet Volume
Ideal rear volume 140 L; minimum rear volume 70 L
Weight
5.6 kg (12.3 lb)

Environmental

IP Rating
IP64 (safety and regulatory compliance)

Certifications & Warranty

Certifications
THX Certified Ultra

Ownership and support

Ownership & Support

Warranty

The KEF Ci250RRB-THX is covered by the standard KEF manufacturer warranty. The exact warranty term is confirmed at order.

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All orders are final sale. Read our Refund policy.

Expert FAQs

Which amplifier does the KEF Ci250RRB-THX need?

KEF lists the KEF KASA500 as the required amplifier for the KEF Ci250RRB-THX.

What is the frequency response of the KEF Ci250RRB-THX?

KEF lists 20 Hz (±6 dB, open-backed, KASA setting) and a frequency range of 16 Hz (-10 dB), with a maximum SPL of 109 dB.

Is the KEF Ci250RRB-THX THX certified?

Yes. KEF lists the Ci250RRB-THX as THX Certified Ultra.

What cut-out does the KEF Ci250RRB-THX need?

KEF lists a cut-out diameter of 300 mm (11.81 in) and a mounting depth of 147 mm (5.8 in) from the surface.

What low-pass crossover does the KEF Ci250RRB-THX use?

KEF recommends a low-pass filter of 50 Hz to 120 Hz for the KEF Ci250RRB-THX.

How much rear volume does the KEF Ci250RRB-THX need?

KEF lists an ideal rear volume of 140 L and a minimum rear volume of 70 L.

What ceiling thickness suits the KEF Ci250RRB-THX?

KEF lists a minimum ceiling thickness of 6 mm (0.24 in) and a maximum of 30 mm (1.18 in).

How big and heavy is the KEF Ci250RRB-THX?

The KEF Ci250RRB-THX has a diameter of 346 mm (13.62 in), a depth of 153 mm (6 in) and weighs 5.6 kg (12.3 lb).

Where can I buy the KEF Ci250RRB-THX in the UAE?

CorporateAV.ae is a supplier of genuine KEF products in the UAE and delivers the KEF Ci250RRB-THX same-day or next-day across the UAE, subject to availability and location. Request a Project Quote on this page, call +971 56 498 8088, WhatsApp us or email info@corporateav.ae. Phone: +971 56 498 8088. Email: info@corporateav.ae.