The JBL 4309 Studio Monitor combines classic JBL heritage styling with advanced acoustic engineering to deliver dynamic, detailed, and accurate sound reproduction. Designed and engineered in Northridge, California, the 4309 features JBL's patented High-Definition Imaging (HDI™) horn, a 1-inch compression driver, and a 6.5-inch pure-pulp cone woofer for exceptional clarity, powerful dynamics, and precise imaging.
| Speaker Type | 2-Way Bookshelf Loudspeaker |
| Low Frequency Driver | 6.5-inch (165mm) Pure Pulp Cone Woofer |
| High Frequency Driver | 2410H-2 1-inch (25mm) Compression Driver with HDI™ Horn |
| Frequency Response | 42Hz – 30kHz (-6dB) |
| Sensitivity | 87dB (2.83V/1m) |
| Nominal Impedance | 4 Ohms |
| Recommended Amplifier Power | 25 – 150 WRMS |
| Crossover Frequency | 1.6kHz |
| Coverage Angle | 100° Horizontal × 80° Vertical |
| Cabinet Design | H-Braced Front-Ported Enclosure |
| Dimensions (H × W × D) | 419 × 260 × 227 mm (16.5 × 10.25 × 9 in) |
| Weight (Each) | 10.98kg (24.2 lbs) |
| Recommended Stand Height | 609mm (24 inches) |
Perfect for dedicated stereo listening rooms, desktop hi-fi systems, and premium home audio setups, the JBL 4309 delivers studio-monitor accuracy with the dynamic performance and signature sound that JBL enthusiasts expect.