JBL 4312 BookShelf Speaker


As you would expect of a true JBL studio monitor, the 4312 E delivers crisp, powerful bass at all listening levels with a massive 300mm (12-inch) woofer driven by a Differential Drive (U.S. patent no. 5,748,760 and other patents pending) dual 75mm (3-inch) voice-coil assembly.
  • Continuously variable MF and HF attenuates
  • Five-way binding-post connectors permit
  • Pebble-texture black vinyl finish
  • Silk-screened JBL logos.
  • The loudspeakers are configured in mirror-image


A 125mm (5-inch) pure-pulp cone and 25mm (1-inch) copper voice coil with Kapton bobbin realistically reproduce the full dynamics of vocal performances with low distortion, even at the highest listening levels.

A 25mm (1-inch) tweeter with a magnesium/aluminum alloy dome extends HF response far beyond the audible range of the human ear. Built-in mirror-image pairs to create the detailed, coherent stereo sound stage that studio monitors must, the JBL 4312 E exceeds the expectations of critical listeners and music professionals alike, providing a listening experience of such richness and subtlety that it cannot be compared to anything but a live performance.


  • The loudspeakers are configured in mirror-image pairs to create a focused stereo sound stage ideal for monitor applications.
  • Extremely rigid, heavily braced enclosures of 19mm (3/4-inch) PB with 19mm (3/4-inch) MDF baffles ensure that the transducers are held in precise alignment.
  • The front-mounted port provides optimal woofer tuning for extended bass response and permits the speaker to be placed against a wall.
  • Continuously variable MF and HF attenuate let users tailor driver output to suit room acoustics or personal preference.
  • Five-way binding-post connectors permit the use of any type of wire and termination.
  • Pebble-texture black vinyl finish with?silk-screened JBL logos.
SKU: 4312 Categories: ,
Weight 17000 g
Dimensions 362 × 299 × 597 mm


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