KEF Ci200QSb-THX In-Wall Subwoofer (Pair)


£800.00 inc vat
£666.67 ex vat
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KEF Ci200QSb-THX In-Wall Subwoofer (Pair)

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 2 pair of the Ci200QSb-THX subwoofer are powered by the powerful 250Wx 2 KEF KASA500 System Amplifier the performance meets THX Select2 specification. When 4 pair of the Ci200QSb-THX are powered by 2 KEF KASA500 System Amplifiers the performance meets THX Ultra2 specification.


  • 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
  • Sold in Pairs


  • NOMINAL IMPEDANCE 6 Ohm - Passive Mode (Crossover "ON")
  • SENSITIVITY 85dB - Passive Mode (Crossover "ON")
  • FREQUENCY RESPONSE 40Hz-100Hz - Passive Mode (Crossover "ON"), 18Hz-140Hz - Active Mode (KASA500)
  • CROSSOVER FREQUENCIES 100Hz - Passive Mode (Crossover "ON")
  • DRIVE UNITS LF: 200mm (8 in.)
  • RECOMMENDED 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.)
  • CUT-OUT DIMENSIONS H x W: 238 x 238 mm (9.37 x 9.37 in.)
  • NET WEIGHT 3.3kg (7.28 lbs)
In stock In stock For fast dispatch
2 year(s) warranty 2 Year Warranty On this product
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