Audio Database


This 3-way speaker system is an improved version of the 4312.

The low range is equipped with 2213H which is a 30 cm cone type woofer.
White cone is used for the diaphragm, and a 75 mm diameter copper ribbon edgewise wound voice coil is used for the voice coil.
The magnetic circuit uses a symmetrical field geometry (SFG) magnetic circuit that drives the cone with low distortion in a symmetric magnetic field, and an aluminum die-cast frame is used for the frame.

The mid-range is equipped with a 12.5 cm diameter cone type mid-range driver 104H-3.

It is equipped with a 2.5 cm hard dome type tweeter 052 ti in the high range.
This unit is equipped with a lipless pure titanium diaphragm that is integrally molded with JBL's unique diamond structure edge using precision processing technology.

Equipped with an attenuator that can adjust the output sound pressure level of the middle and high frequency ranges independently.
The enclosure uses a bass reflex system.

The exterior finish is 4312 MKIIWX with blue baffle and walnut veneer finish and 4312 MKIIGY grey paint finish.

Model Rating
Method 3-Way, 3-Speaker, Bass reflex system, Bookshelf Type
Units, etc. For Low Band : 30 cm Cone Type (2213H)
For Middle Range : 12.5 cm Cone Type (104H-3)
For High Range : 2.5 cm Dome Type (052 ti)
Frequency characteristic 45 Hz to 22 kHz (-6dB)
Output sound pressure level 93dB/2.83V/m
Impedance 6 Ω
Allowable input 100W(RMS)
Crossover frequency 2 kHz, 5 kHz
External dimensions Width 362x Height 597x Depth 298 mm
Weight 20kg