Stage 2 2.5-Way Quad 4.5” (114mm) Centre Channel Loudspeaker Engineered at the renowned Acoustic Engineering Centre of Excellence in Northridge, California, the Stage 240B stands as the most compact bookshelf loudspeaker in the JBL Stage Series. Despite its small size, it delivers remarkable performance and versatility, suitable for use as either main speakers or surround sound options. This loudspeaker incorporates a 2-way design featuring Next Generation patented High-Definition Imaging (HDI™) waveguide technology, a 1-inch (25mm) anodized aluminium dome tweeter, and a 4.5-inch (114mm) polycellulose ribbed cone woofer, ensuring a rich and distinctive JBL bass experience. General: Type: Centre Channel Loudspeaker System Low Frequency Driver: Quad 4.5-inch (114mm) Polycellulose Ribbed Cone High Frequency Driver1-inch (25mm) Anodized Aluminium Waveguide: Next Generation HDI™ Recommended Amplifier Power: 20-150W Frequency Response ± 6dB: 55Hz-25kHz Sensitivity @ 1M, 2.83V: 91dB Nominal Impedance: 6 Ohms Crossover Frequencies: 1.3kHz/2.0Khz Enclosure Tuning: Bass Reflex via Dual Rear-Firing Tuned Ports Finish: Espresso or Latte Dimensions: Dimensions (HxWxD): 272mm x 175mm x 217mm Product Weight: 12.0kg Shipping Weight: 14.7kg Shipping Units of Measure: Each