KEF

KEF Ci250RRm-THX 3-Way 10-Inch Meta In-Ceiling Speaker

Model Ci250RRm-THX

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  • 3-way 10-inch in-ceiling speaker with MAT tweeter, THX Certified Ultra
  • 28 Hz to 20 kHz (±6 dB, open-backed) and 20 Hz to 45 kHz (-10 dB)
  • 8 Ω nominal impedance, 50 to 250 W recommended amplifier power
  • Diameter 346 mm, 6 kg; cut-out diameter 300 mm; 111 dB maximum SPL
KEF Ci250RRm-THX in-ceiling speaker, Ci250RRM THX Front Grille Cutoff 851b33ee ffd3 41a2 0b0d6fdbfa47
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  • Manufacturer Warranty
  • Fast UAE Delivery
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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 Ci250RRm-THX?

The KEF Ci250RRm-THX is an in-ceiling speaker with a 250 mm (10 in) low-frequency driver, a 100 mm (4 in) Uni-Q mid-range driver and a 19 mm (0.75 in) vented aluminium dome tweeter with Metamaterial Absorption Technology (MAT). KEF lists 28 Hz to 20 kHz (±6 dB, open-backed) and 20 Hz to 45 kHz (-10 dB), 89 dB sensitivity and 8 Ω nominal impedance, with THX Certified Ultra. Installers in the UAE specify it for home cinema and hi-fi rooms where the speaker is built into the ceiling.

The KEF Ci250RRm-THX is an architectural speaker for in-ceiling installation, with a 250 mm (10 in) low-frequency driver, a 100 mm (4 in) Uni-Q mid-range driver and a 19 mm (0.75 in) vented aluminium dome tweeter with Metamaterial Absorption Technology (MAT). KEF lists 50 to 250 W recommended amplifier power, so it needs an external amplifier.

Why this product

Key Benefits

  • Driver layout

    KEF lists a 250 mm (10 in) low-frequency driver, a 100 mm (4 in) Uni-Q mid-range driver and a 19 mm (0.75 in) vented aluminium dome tweeter with Metamaterial Absorption Technology (MAT).

  • Frequency response

    KEF lists 28 Hz to 20 kHz (±6 dB, open-backed) and 20 Hz to 45 kHz (-10 dB).

  • Sensitivity and impedance

    KEF lists 89 dB sensitivity (2.83 V, 1 m) and 8 Ω nominal impedance, with 50 to 250 W recommended amplifier power.

  • Installation

    KEF lists a cut-out of Diameter 300 mm (11.81 in), a mounting depth of 168 mm (6.62 in) and ceiling thickness of Minimum 6 mm (0.24 in); maximum 30 mm (1.18 in).

  • Certification

    KEF lists THX Certified Ultra.

Use cases

Applications

  • Home cinema and hi-fi ceiling installs

    The Ci250RRm-THX is built into the ceiling, so it needs an external amplifier rated for 8 Ω.

  • Discreet installations

    The speaker mounts in a cut-out of Diameter 300 mm (11.81 in).

Technical details

Technical Specifications

System

System Type
In-ceiling speaker
Bass Driver
250 mm (10 in)
Midrange Driver
100 mm (4 in) Uni-Q
Tweeter Driver
19 mm (0.75 in) vented aluminium dome with Metamaterial Absorption Technology (MAT)
Crossover Frequency
540 Hz, 2.6 kHz
High-Pass Crossover Frequency
30 to 60 Hz

Frequency

Frequency Response (±6 dB)
28 Hz to 20 kHz, open-backed
Frequency Range (-10 dB)
20 Hz to 45 kHz

Performance & Coverage

Nominal Coverage
120°
Sensitivity
89 dB
Maximum SPL
111 dB

Power

Nominal Impedance
8 Ω
Recommended Amplifier Power
50 to 250 W

Physical

Dimensions
Diameter 346 mm (13.62 in); depth 175 mm (6.89 in)
Cutout Dimensions
Diameter 300 mm (11.81 in)
Ceiling Thickness
Minimum 6 mm (0.24 in); maximum 30 mm (1.18 in)
Mounting Depth
168 mm (6.62 in)
Cabinet Volume
Ideal rear volume 150 L; minimum rear volume 80 L
Weight
6 kg (13.2 lb)

Environmental

IP Rating
IP64 (safety and regulatory compliance)

Certifications & Warranty

Certifications
THX Certified Ultra

Ownership and support

Ownership & Support

Warranty

The KEF Ci250RRm-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 suits the KEF Ci250RRm-THX?

KEF lists 50 to 250 W recommended amplifier power at 8 Ω nominal impedance. The KEF Ci250RRm-THX is passive, so it needs an external amplifier.

What impedance and sensitivity does the KEF Ci250RRm-THX have?

KEF lists 8 Ω nominal impedance and 89 dB sensitivity (2.83 V, 1 m).

What is the frequency response of the KEF Ci250RRm-THX?

KEF lists 28 Hz to 20 kHz (±6 dB, open-backed) and 20 Hz to 45 kHz (-10 dB). Maximum SPL is 111 dB.

What cut-out does the KEF Ci250RRm-THX need?

KEF lists a cut-out of Diameter 300 mm (11.81 in) and a mounting depth of 168 mm (6.62 in) from the surface.

What ceiling thickness suits the KEF Ci250RRm-THX?

KEF lists ceiling thickness of Minimum 6 mm (0.24 in); maximum 30 mm (1.18 in).

How is the KEF Ci250RRm-THX installed?

KEF lists the Ci250RRm-THX as an in-ceiling speaker, installed in a cut-out of Diameter 300 mm (11.81 in). Check the dimensions and weight in the specifications before you plan the position.

How much rear volume does the KEF Ci250RRm-THX need?

KEF lists Ideal rear volume 150 L; minimum rear volume 80 L.

Which high-pass filter does the KEF Ci250RRm-THX need?

KEF recommends a high-pass filter of 30 to 60 Hz.

Where can I buy the KEF Ci250RRm-THX in the UAE?

CorporateAV.ae is a supplier of genuine KEF products in the UAE and delivers the KEF Ci250RRm-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.