The KEF Ci200QSb is a powerful and discreet 8-inch architectural in-wall subwoofer engineered to deliver deep, controlled bass without compromising interior aesthetics. Designed for custom installations, this square in-wall subwoofer blends seamlessly into modern living spaces while adding impactful low-frequency performance to music and home cinema systems. Whether used in a dedicated theatre room or as part of a distributed audio setup, it enhances every listening experience with tight, accurate bass response.
Dual-Mode Performance: Passive or Active
The Ci200QSb offers flexible operation in both passive and active modes, making it suitable for a wide range of installations. In passive mode (crossover “ON”), it operates at 6 Ω with a frequency response of 40 Hz–100 Hz and supports 10–150 W of amplifier power. When paired with the dedicated KASA500 amplifier in active mode, performance extends dramatically down to 18 Hz, delivering deeper, more dynamic bass with greater control and headroom. This flexibility allows installers to tailor the system for optimal performance based on room size and application.
Precision Bass in a Compact Design
Equipped with a robust 200 mm (8″) low-frequency driver, the Ci200QSb delivers tight, distortion-free bass suitable for both music and cinematic soundtracks. Its square architectural grille ensures seamless integration into walls or ceilings, maintaining a clean, minimalist appearance. With optimized mounting depth and cut-out dimensions, it is ideal for both new construction and retrofit projects.
Designed for Seamless Installation
The Ci200QSb features a shallow mounting depth and supports ceiling thicknesses from 6 mm to 40 mm, ensuring compatibility with standard construction materials. An optional rough-in frame (RIF200S) simplifies pre-construction installation, helping professionals achieve precise alignment and secure mounting.
Features
- 8″ (200 mm) architectural in-wall subwoofer
- Dual-mode operation: Passive or Active (with KASA500 amplifier)
- Frequency response: 40–100 Hz (Passive) / 18–140 Hz (Active)
- 6 Ω nominal impedance in passive mode
- 10–150 W recommended amplifier power (Passive Mode)
- Discreet square grille for seamless architectural integration
- Optional RIF200S rough-in frame available
Specifications
| Specification | Details |
|---|---|
| Nominal Impedance | 6 Ω – Passive Mode (Crossover “ON”)N/A – Active Mode (KASA500) |
| Sensitivity | 85 dB – Passive Mode (Crossover “ON”)N/A – Active Mode (KASA500) |
| Crossover Frequencies | 100 Hz – Passive Mode (Crossover “ON”)N/A – Active Mode (KASA500) |
| Frequency Response | 40 Hz – 100 Hz – Passive Mode (Crossover “ON”)18 Hz – 140 Hz – Active Mode (KASA500) |
| Drive Units | LF: 200 mm (8 in.) |
| Recommended Amplifier Power | 10–150 W – Passive Mode (Crossover “ON”)KASA500 – Active Mode |
| Product External Dimensions (H × W × D) | 273 × 273 × 106 mm (10.75 × 10.75 × 4.17 in.) |
| Cut-Out Dimensions (H × W) | 238 × 238 mm (9.37 × 9.37 in.) |
| Mounting Thickness | Ceiling Thickness (Maximum): 40 mm (1.58 in.)Ceiling Thickness (Minimum): 6 mm (0.24 in.) |
| Mounting Depth From Surface | 101.6 mm (4 in.) |
| Optional Rough-In Frame | RIF200S |
| Net Weight | 3.3 kg (7.28 lbs) |
| Unit Measurement | Piece |
T1S7M8E6/05-BKM
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