The JBL 4309 Studio Monitor combines JBL’s professional audio expertise with a compact bookshelf design, delivering precise, high-fidelity sound for home studios, desktops, and living rooms.
Featuring a 7-inch pure pulp woofer and a 1-inch titanium-laminate dome tweeter, the 4309 achieves excellent bass depth, smooth midrange, and crystal-clear highs. Its JBL Advanced Waveguide technology ensures wide dispersion and precise imaging, providing a spacious and natural soundstage.
The 4309 is a passive speaker, designed to pair with your amplifier of choice, making it ideal for audiophiles and professionals who want flexible system configuration. The rear bass reflex port enhances low-frequency performance while maintaining clarity and punch.
Housed in a rigid MDF cabinet with premium vinyl finish, the 4309 looks as good as it sounds. Whether used for music, home theater, or desktop audio, the JBL 4309 delivers balanced, accurate, and immersive sound in a bookshelf form factor.
Type: 2-way bookshelf loudspeaker
Low Frequency Driver: 6.5" (165mm) Pure Pulp cone woofer
High Frequency Driver: 2410H-2 1-inch (25mm) annular ring, Teonex® diaphragm compression driver with advanced HDITM geometry horn
Recommended Amplifier Power: 25 – 150 WRMS
Impedance: 4 Ohm
Loudspeaker Sensitivity: 87dB/2.83V/1m
Frequency Response: 42Hz – 30kHz (-6dB)
Coverage Angle, -6dB: 100 Degrees Hor. x 80 Degrees Ver., from 2kHz to 17kHz
Crossover Frequency: 1.6kHz
Enclosure Type: V-braced front-ported bookshelf
Grille Feature: Monitor style to match horn mating features, supplied in dark blue (with walnut cabinet) and black (with black cabinet)
Dimensions with grille: 16.5" H x 10.25" W x 9" D (419mm H x 260mm W x 227mm D)
Controls: UHF tone control
Input Type: Dual sets of gold-plated binding posts with shorting straps Product Weight (Each): 24.2 lbs (10.98kg)
Shipping Weight: 56.2 lbs (25.5kg)
Shipping Units of Measure: Pair
Warranty: 5 Years
Recommended stand height: 24" (609mm)