Ci200QSb-THX

In-Wall Subwoofers

Nominal Impedance, Passive Mode: 6 ohms
Sensitivity, Passive Mode (2.83 V/1 m): 85 dB
Frequency Response, Passive Mode (±6 dB): 40 Hz - 100 Hz
Recommended Amplifier Power: Passive: 10 - 150 W; Active: KEF KASA500
Product Dimensions (H x W x D): 273 x 273 x 106 mm (each)

All specifications

Price $1,400

Includes GST

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

Hear the Ci200QSb-THX before you decide

Book a private listening session in Belrose and ask for the Ci200QSb-THX: we will confirm what we can set up for you. Or audition it at home.

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.

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 Ci200QSb-THX

Specifications

Design: Square in-wall subwoofer, passive or active (KASA500), Ci-Q Series
Drive Units: LF: 200 mm (8 in.)
Frequency Response, Passive Mode (±6 dB): 40 Hz - 100 Hz
Frequency Response, Active Mode (±6 dB): 18 Hz - 140 Hz (KEF product page); 30 Hz - 140 Hz (KEF spec sheet)
Frequency Range (-10 dB): Passive: 29 Hz - 140 Hz; Active: 25 Hz - KASA500 setting
Crossover Frequency, Passive Mode: 100 Hz
Sensitivity, Passive Mode (2.83 V/1 m): 85 dB
Nominal Impedance, Passive Mode: 6 ohms
Maximum SPL: 104 dB
Recommended Amplifier Power: Passive: 10 - 150 W; Active: KEF KASA500
Recommended Low-Pass Filter: Passive: 80 Hz - 120 Hz; Active: 50 Hz - 120 Hz
Product Dimensions (H x W x D): 273 x 273 x 106 mm (each)
Cut-Out Dimensions (H x W): 238 x 238 mm
Mounting Depth From Surface: 101.6 mm
Ideal / Minimum Rear Volume: 32 L / 20 L per subwoofer
Optional Rough-In Frame: RIF200S
Net Weight: 3.3 kg each (6.6 kg pair)
Dust and Water Rating: IP64
Certification: THX Certified Ultra, THX Certified Select (active mode)
Unit: Sold as a pair

Installation

In-wall mounting, square cut-out 238 x 238 mm
Mounting depth from surface 101.6 mm
Ideal rear volume 32 L, minimum rear volume 20 L, per subwoofer (KEF advises doubling for a pair in one space)
Optional RIF200S rough-in frame (sold separately)
Ultra-Thin Bezel (UTB) with paintable magnetic grille
IP64 dust and water rating

In detail

About the Ci200QSb-THX

Overview

The Ci200QSb-THX is a square Ci-Q Series in-wall subwoofer with a 200 mm high-output sub-bass driver, sold as a pair. It can run in passive mode through its internal crossover to add low-frequency output to KEF in-wall or in-ceiling speakers, or in active mode driven by KEF's KASA500 amplifier (sold separately).

In active mode, KEF specifies two pairs on two KASA500 amplifiers for THX Certified Select performance, and four pairs on two KASA500 amplifiers for THX Certified Ultra.

Drivers and Technology

200 mm (8 in.) woofer with extended bass response
Passive mode with internal 100 Hz crossover, or active mode with the KEF KASA500 amplifier
THX Certified Ultra / THX Certified Select in active mode, depending on configuration

THX System Configurations (per KEF)

Medium room, THX Certified Select (up to 2,000 cubic feet): 4 x Ci200QSb-THX (2 pairs) with KASA500 amplification
Large room, THX Certified Ultra (up to 3,000 cubic feet): 8 x Ci200QSb-THX (4 pairs) with 2 x KASA500

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 Ci200QSb-THX.

Build it into a cinema

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