JBL 4312G Studio Monitor


JBL Sound: A Heritage of Excellence

JBL loudspeakers have been a top choice of music and movie professionals for more than 70 years. They provide incredible sound in movie theaters, concert venues, recording studios, and houses of worship worldwide. But you don’t need to be a professional to enjoy legendary JBL sound. Our home products and systems leverage the same cutting edge technology and acoustic advancements the pros rely on.

JBL 4312G 3-way Studio Monitor Loudspeaker
The 4312G honors JBL’s storied legacy with the iconic 12-inch (300mm) 3-way configuration that dates back all the way to 1968. Crafted in the mold of the legendary 4310/4311 family, and the more recent 70th Anniversary 4312SE, the 4312G delivers thundering, clear bass, with crystalline and precise highs, even at the highest listening levels.

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  • 12-inch pure pulp cone woofer
  • 5-inch midrange with polymer-coated pure pulp cone
  • 1-inch Magnesium-Aluminum tweeter
  • Attenuators for mid-frequency and high-frequency drivers
  • Sleek black wood grain finish


The 4312G loudspeakers are built in matched mirror-image pairs allowing for a wide variety of placement and positioning applications. In classic studio monitor fashion, they can be positioned horizontally or vertically and with the tweeters to the inside or outside of the listening position, and they can be shelf or stand-mounted. This flexibility makes them capable of serving equal duty in small, intimate listening environments or in larger rooms without sacrificing the detail and coherent stereo soundstage and image quality that studio monitors must have.

“The JBL 4312G is a 3-way, high-performance compact studio monitor that delivers thundering bass, with dynamic and clear highs for a thoroughly enjoyable audio experience,” said Jim Garrett, Senior Director, Product Strategy & Planning, HARMAN Luxury Audio. “The original 4310 family was introduced in 1968 and now these retro products and designs are in high demand. There’s a huge appreciation and desire for these great looking, great sounding vintage JBL loudspeaker systems.

Utilizing a compact monitor-type footprint, the 4312SE features advanced JBL transducers including the 12-inch (300mm) 1200FE-8 Aqua-Plas®-coated Pure Pulp cone woofer, the 5-inch (125mm) 105H-1 Polymer-coated Pure Pulp cone midrange, and the 1-inch (25mm) 054ALMg-1 Aluminum/Magnesium Alloy tweeter with waveguide.

Front-panel mid- and high-frequency trim controls, bass-reflex enclosure with front-firing port, binding-post speaker terminals, and a black wood grain finish with removable black cloth grille round out the system’s performance features.


  • Description: 3-way 12″ studio monitor bookshelf loudspeaker
  • Low-frequency Transducer: 12″ (300mm) pure pulp cone (JW300SW-8)
  • Mid-frequency Transducer: 5″ (125mm) polymer-coated pure pulp cone (JM125PC-8)
  • High-frequency Transducer: 1″ Magnesium-Aluminum alloy dome (054ALmg-1)
  • Frequency Response: 44Hz – 40kHz (-6dB)
  • Sensitivity: 90dB
  • Recommended Amplifier Power: 10-200 Watts RMS
  • Crossover Frequencies: 640Hz, 5kHz
  • Nominal Impedance: 6 Ohms
  • Dimensions (H x W x D): 23.5″ x 14.25″ x 12″ (597 x 362 x 305mm)
  • Weight: 52.4 lbs. (23.8kg) each


For more than 60 years, the JBL® brand has delivered products that exemplify the technology and expertise gained through our leadership in professional sound reproduction. The JBL name has been synonymous with the precise, naturally articulated sound found in many of the world’s most prestigious locations, including clubs, cinemas and recording studios, and live-music reinforcement in venues ranging from concert halls to outdoor stadiums.