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JBL Commercial Products


JBL's Commercial Series Ceiling Speakers provide excellent performance for paging and background music applications. High sensitivity across the product line provides maximum sound level, even at low tap settings.

The 8124 is a 4-inch, full-range, cost-effective loudspeaker for commercial applications. It features high-fidelity performance in an easy to install package. The system’s high sensitivity drivers deliver maximum sound levels using minimal amplifier power. With its contemporary grill design, 70V/100V taps and an open-back design, the 8100 series brings elegance and performance to basic commercial sound systems, or any application not requiring a backcan for installation.


  • Clear, High-Fidelity Performance
  • Dog-ears for easy Blind Mount Installations
  • High Sensitivity (93 dB, 1W, 1m) for Maximum Power Efficiency
  • 6W Transformer for use of 70V / 100V Distributed Lines
  • C-Ring (MTC-8128C) and tile rails (MTC-RAIL) optional
Component 4" (100 mm) Full-range driver
Frequency Range 60 Hz - 18 kHz
Sensitivity 93 dB (1kHz - 8kHz), 1W, 1M
Coverage Angle 130 degrees conical
Transformer Taps 6W, 3W, 1.5W (0.75W at 70V only)
Termination Bare wires
Dimensions 8.1" (206 mm) x 3.5" (89 mm)
Weight 2.5 lbs (1.2 kg)
  Version Language Size Uploaded
8124 Brochure-English
en updated: Dec 21, 2020
  en  820 KB Dec 21, 2020
Cut Sheets
8124 Cut Sheet-English
en updated: Dec 21, 2020
  en  88.5 KB Dec 21, 2020
JBL Commercial Brochure
updated: Apr 02, 2020
    1.64 MB Apr 02, 2020
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