JBL 4309 Bookshelf Loudspeaker
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.
Key Features
- 6.5-inch (165mm) Pure Pulp cone woofer
- 1-inch (25mm) 2410H-2 compression driver with HDI™ horn
- Front-ported bass reflex enclosure
- Advanced crossover network
- Ultra High-Frequency (UHF) level attenuator
- Dual gold-plated binding posts for bi-wire/bi-amp compatibility
- Furniture-grade Satin Walnut or Black Walnut veneer finish
Technical Specifications
| 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) |
What's in the Box
- JBL 4309 Bookshelf Loudspeaker (Pair)
- Monitor-style Grilles
- Quick Start Guide
- Owner's Manual
- Warranty Documentation
Ideal For
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.
