• KEF - Ci250RRb-THX - In-Wall Subwoofers Australia
  • KEF - Ci250RRb-THX - In-Wall Subwoofers Australia
  • KEF - Ci250RRb-THX - In-Wall Subwoofers Australia
  • KEF - Ci250RRb-THX - In-Wall Subwoofers Australia
  • KEF - Ci250RRb-THX - In-Wall Subwoofers Australia
  • KEF - Ci250RRb-THX - In-Wall Subwoofers Australia
KEF

Ci250RRb-THX

In-Wall Subwoofers

Frequency Response (±6 dB, open-backed)
20 Hz - KASA500 setting
Product Dimensions
346 mm diameter x 153 mm depth
Net Weight
5.6 kg
All specifications

Price $2,700

Includes GST

Available to order: we confirm delivery timing when you order

Sound+Image Awards winner

Voted Australia's #1 Hi-Fi Retailer, Sound+Image Awards 2023. Family owned since 2010.

Hear the Ci250RRb-THX before you decide

Book a private listening session in Belrose and ask for the Ci250RRb-THX: we will confirm what we can set up for you. Or audition it at home.

(02) 8088 3088Build it into a cinema

Delivery and collection

Free standard shipping on orders of $300 or more within Australia, and $15 on smaller orders. Western Australia is quoted on request.

Pick up from our Belrose showroom: call ahead so we can have it ready.

Shipping information

Set-up and installation

Our team can deliver, install and set up your system, from speaker placement to a full cinema calibration. Ask us for a quote when you order.

Returns

Your rights under Australian Consumer Law always apply. Read our returns policy.

KEF Ci250RRb-THX

Specifications

THX System Configurations (per KEF)
THX System Configurations (per KEF)
Medium room, THX Certified Select (up to 2,000 cubic feet)
1 x KASA500 with 2 x Ci250RRb-THX
Large room, THX Certified Ultra (up to 3,000 cubic feet)
1 x KASA500 with 4 x Ci250RRb-THX
Design
Passive in-ceiling subwoofer, Ci-R Series
Drive Units
LF: 250 mm (10 in.)
Required Amplifier
KEF KASA500 (sold separately)
Frequency Response (±6 dB, open-backed)
20 Hz - KASA500 setting
Frequency Range (-10 dB)
16 Hz - KASA500 setting
Maximum SPL (at 1 m)
109 dB
Recommended Low-Pass Filter
50 Hz - 120 Hz
Product Dimensions
346 mm diameter x 153 mm depth
Cut-Out Dimensions
300 mm diameter

Installation

  • In-ceiling mounting, 300 mm round cut-out
  • Mounting depth from surface 147 mm, ceiling thickness 6 to 30 mm
  • Ideal rear volume 140 L, minimum rear volume 70 L
  • Ultra-Thin Bezel (UTB) with paintable magnetic grille
  • IP64 dust and water rating

In detail

About the Ci250RRb-THX

Overview

The Ci250RRb-THX is a round passive in-ceiling subwoofer from KEF's Ci-R Series, using an extra-long-throw 250 mm bass driver with a 150 oz magnet. It is THX Certified Ultra and THX Certified Select depending on system configuration.

It has no built-in amplifier and is designed to be driven by KEF's DSP-equipped KASA500 amplifier (sold separately). KEF rates it to 20 Hz with a maximum SPL of 109 dB.

Drivers and Technology

  • 250 mm (10 in.) extra-long-throw bass driver with 150 oz magnet
  • Passive design, requires the KEF KASA500 amplifier (sold separately)
  • THX Certified Ultra / THX Certified Select, depending on configuration

By appointment

Hear it in a real room.

Specifications only tell half the story. Book a private listening session in our Belrose showroom, bring the music you know best, and ask for the Ci250RRb-THX.

Build it into a cinema
Sound+Image Awards winner

Voted Australia's #1 Hi-Fi Retailer, Sound+Image Awards 2023

Family owned since 2010
Talk to the people who will look after you.
Listen in Belrose
Private listening sessions, by appointment.
Designed and installed
Cinemas and listening rooms by our own team. (02) 8088 3088

Pairs with the Ci250RRb-THX

Complete the system

  • SAVE 10%

    Marantz

    CINEMA30

    AV Receiver

    Sale price $7,200Regular price $8,000

    Plus bonus Dirac ART*
  • CASHBACK

    Yamaha

    Aventage RXA8A

    AV Receiver

    Price $6,599

    Cashback available*
  • NAD

    T 778

    AV Receiver

    Price $6,499

  • Pre-owned

    Meridian

    DSP 5000

    Floor Standing Speakers

    Price $8,000

  • KEF

    R7 Meta

    3-Way Floorstanding Speakers

    Price $7,999

  • SAVE 10%

    Bowers & Wilkins

    703 S3

    Floorstanding Speakers

    Sale price $7,650Regular price $8,500

  • Scansonic HD

    Scansonic Q3

    Floorstanding Speakers

    Sale price From $7,199Regular price $11,999

More from KEF

Shop KEF