JBL 4312BMKII
¥ 78,000 (1 unit, around 1999)
Commentary
4312 black 3-way speaker system.
The unit structure is different from that of 4312 MKII only in the high-frequency unit.
For the low range, a 30 cm white cone type unit 2213H with 75 mm diameter copper ribbon edge width winding voice coil is adopted.
Uses SFG (symmetrical field geometry) magnetic circuit that realizes low distortion factor and aluminum die cast frame with excellent mechanical strength.
The mid-range is equipped with a 12.5 cm mid-range driver 104H-3 which is derived from the LE5 series unit.
The high-pass band is equipped with 035 ti of 25 mm pure titanium dome tweeter, which is made by molding high-hardness pure titanium material into 25 μ m thick dome shape.
Uses JBL's unique diamond edge pattern with excellent linearity and reinforcing ribs.
The enclosure has a black finish with anti-slip embossing and features a unique layout designed to concentrate sound sources.
In addition, independent attenuators are installed for the mid - and high-frequency ranges.
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 (035 ti) |
Frequency characteristic | 45 Hz to 20 kHz (-6dB) |
Output sound pressure level | 93dB/2.83V/m |
Impedance | 6 Ω |
Allowable input | 100W(RMS) |
Crossover frequency | 1100 Hz, 4200 Hz |
External dimensions | Width 362x Height 597x Depth 298 mm |
Weight | 20kg |