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KEF Ci200QSb-THX In-Wall Subwoofer

by Kef
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Original price $900.00 - Original price $900.00
Original price $900.00
$900.00 - $900.00
Current price $900.00

KEF Ci200QSb-THX In-Wall Subwoofer

THX ULTRA Certified 200mm Subwoofer

Certified to THX ULTRA2 and THX SELECT2 standards, the formidable Ci200QSb-THX in-wall subwoofer delivers deep bass and theatre thumping output capabilities, matched to the uncanny ability to deliver all the drama and emotional intensity of full theatre sound quality. 

With a powerful high-output 200mm (8in.) sub-bass driver, the Ci200QSb-THX can be used in passive mode to supplement the LF output of KEF’s Ci series in-wall or in-ceiling speakers. In Active mode, when powered by the powerful 250Wx 2 KEF KASA500 System Amplifier in proper configuration, the Ci200QSb-THX could deliver full THX Select2 or THX Ultra2 Performance. 

Key Features

  • THX Certified Ultra2 / Select2 • 200mm (8in.) woofer unit with extended bass response
  • Paintable Ultra-Thin Bezel (UTB) and magnetic grille to blend unobtrusively with décor
  • Fast, versatile installation on virtually any surface via dogleg
  • Can be used in passive mode with internal crossover or active mode with KEF’s KASA500 System Amplifier for THX certified performance


Model Ci200QSb -THX
Series Q Series
Nominal Impedance 6Ω - Passive Mode (Crossover "ON")
N/A - Active Mode (KASA500)
Sensitivity(2.83V/1m) 85dB - Passive Mode (Crossover "ON")
N/A - Active Mode (KASA500)
Frequency response (±6dB) 40Hz-100Hz - Passive Mode (Crossover "ON")
18Hz-140Hz - Active Mode (KASA500)
Crossover frequency 100Hz - Passive Mode (Crossover "ON")
N/A - Active Mode (KASA500)
Drive Units LF: 200mm (8 in.)
Recomended amplifier power 10-150W - Passive Mode (Crossover "ON")
KASA500 - Active Mode (KASA500)
Product external dimensions Diameter: 273 x 273 x 106 mm (10.75 x 10.75 x 4.17 in.)
Cutout dimensions H x W: 238 x 238 mm (9.37 x 9.37 in.)
Mounting depth from surface 101.6mm (4 in.)
Optional rough in frame RIF200S
Optional rear enclosure RNC130R
Weight" 3.3kg (7.28 lbs)

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