JBL 4311

Brief description

Speaker from the legendary JBL 43XX series

Data

General

• Manufacturer: JBL
• Model: 4311
• Year of manufacture: 1972
• Made in: USA
• Color: Walnut veneer
• Dimensions (W/H/D): 362 x 597 x 298 mm
• Weight: 22 kg
• Original price approx.: 1'400 DM per piece

Technical data

• Type: 3-way, 3 speakers, bass reflex
• Chassis:
• Bass: 300 mm, Type 2213
• Midrange: 125 mm, Type LE-25
• Tweeter: 35 mm, Type LE 5-2
• Frequency range: 45 Hz - 15 kHz
• Minimum recommended amplifier power: 75 watts per channel
• Impedance: 8 Ohm
• Crossover frequencies: 1'500 Hz, 6'000 Hz
• System sensitivity: 91 dB SPL, 1 W, 1 m (3.3 m)

Special Features

• Level control for mid and high frequencies
• Detachable front

Remarks

• Other models in the same series:
  • JBL 4310
  • JBL 4311
  • JBL 4312
  • JBL 4312 A

Pictures

• Excerpt from brochure (from left to right): JBL 4311, L100A, L100, 4310

Reports

• Review at Audio Heritage: [1]

• Report at "Mackers": [2]