The KEF Q9c is a passive, two-way, bass-reflex center channel speaker from KEF's vintage Q-series, known for its clear dialogue and consistent performance in home cinema systems. It uses KEF's patented Uni-Q driver array technology for a wide soundstage and detailed sound reproduction.
Key Specifications
According to KEF official documentation and retailer information, the specifications of the KEF Q9c center speaker are as follows:

• System Type: Two-way, bass-reflex enclosure.
• Drive Units: 165 mm (6.5") Uni-Q driver array with a 19 mm (0.75") aluminum dome tweeter.
• Frequency Response (±3 dB at 15° horizontally off axis): 50 Hz – 27 kHz.
• Crossover Frequency: 2.8 kHz.
• Amplifier Requirements: 15 – 120 W.
• Sensitivity (2.83V/1m): 91 dB.
• Maximum Output (SPL): 111 dB.
• Nominal Impedance: 8 Ohms.