JBL 4309 2-Way Studio Monitor Bookshelf Loudspeaker

• General Features
• Key Specifications

General Features

Unit comes as a pair

High Output with Low Distortion

The JBL 4309's powerful, 6.5-inch woofer takes advantage of core JBL engineering techniques to ensure very high output with low distortion. The long-throw voice coil — in conjunction with the symmetrical field motor design, flux stabilization ring, and copper shorting ring — guarantee maximum output with low distortion. A pure-pulp cone provides a lightweight, rigid diaphragm and helps to eliminate breakup modes, ensuring proper pistonic motion throughout the operating band.

Patented High-Definition Imaging (HDI) horn

Patented 2410H-2 1-inch high-frequency compression driver

6.5-inch cast frame, pure-pulp cone woofer with 1.5-inch voice coil

Classic Studio Monitor design with choice of premium finishes: Black Walnut wood veneer with black grille, or Walnut wood veneer with blue grille

Key Specifications

• 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 HDI geometry horn
• Recommended Amplifier Power: 25 - 150 WRMS
• Impedance: 4 Ohm
• Loudspeaker Sensitivity: 87 dB/2.83V/1m
• Frequency Response: 42 Hz - 30 kHz (-6 dB)
• Coverage Angle, -6 dB: 100 Degrees Hor. x 80 Degrees Ver., from 2kHz to 17kHz
• Crossover Frequency: 1.6 kHz
• Enclosure Type: H-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)
• Controls: UHF tone control
• Input Type: Dual sets of gold-plated binding posts with shorting straps
• Dimensions (HWD): 16.5" x 10.25" x 9"
• Weight: 24.2 lbs.
• Warranty: 5 Years
• Recommended stand height: 24"