- Key Features
  
  8″ (200 mm) full-range driver in a ceiling-mount format — designed for in-ceiling installation.
  
  High sensitivity — rated at 97 dB (1 kHz-8 kHz, 1W/1m), which means it can produce good sound levels with relatively modest amplifier power.
  
  Coverage angle about 90° (conical), suitable for broad in-ceiling dispersion.
  
  Frequency range cited at ~50 Hz – 16 kHz (-10 dB) in one specification — suggests decent low-end extension for a ceiling speaker.
  
  Has 70 V / 100 V transformer taps (6 W, 3 W, 1.5 W, 0.75 W at 70 V) for use in distributed audio systems (commercial/architectural contexts), though it’s equally usable in high-fidelity residential installations.
  
  Slim mounting depth (about 105 mm) and large cut-out diameter (~260 mm) make it compatible with typical ceiling installations of its class.

Description

JBL 8128 – 8-inch In-Ceiling Speaker

The 8128 is an 8-inch, full-range, cost-effective loudspeaker for commercial applications. The 8128 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 back can for installation.

Additional Information

Specifications

Component	8 in (200 mm), Full-range Driver
Frequency Range	50 Hz – 16 kHz
Sensitivity	97 dB (1 kHz – 8 kHz), 1W, 1M
Coverage	90 conical
70V/100V Taps	6W, 3W, 1.5W (0.75W at 70V only)
Termination	Bare wires
Dimensions (Diameter x Depth)	11.3 in (287mm) x 4.1in (105mm)
Weight	3lb (1.4kg)
Included Accessories	Sculpted Grille
Optional Accessories	MTC-8124C C-ring, MTC-Rail tile rails