JBL 2446H/2446J
Released in 1992
¥ 109,200 (tax included, 1 unit, around 2007)
Commentary
High frequency compression driver unit with throat diameter of 49 mm.
2446H is 8 Ω model and 2446J is 16 Ω model.
A phase plug with a coherent wave structure is adopted.
The diaphragm is made of titanium, and the edge of the unique diamond surround structure reduces metal fatigue and improves durability.
Ferrite magnet is used for the magnetic circuit.
Model Rating
| Type | Driver unit |
| Throat diameter | 49mm |
| Nominal impedance | 2446H : 8 Ω 2446J : 16 Ω |
| Allowable input (continuous program) | 100W(>500Hz) 150W(>1kHz) |
| Sensitivity (1W, 1m) | 111 dB SPL (2 kHz octave band with Q = 6.3 horn) |
| Frequency range (-10dB) | 500 Hz to 20 kHz |
| Recommended minimum crossover frequency | 500Hz |
| Diaphragm | Φ 100 mm, Pure Titanium |
| Voice coil | Φ 100 mm, Edge Rolled Aluminum / Ribbon |
| Polarity (*) | - |
| Magnetic flux density | 1.9T |
| Dimensions | Diameter 233x Depth 133 mm |
| Weight | 13.8kg |
| * When a positive voltage is applied to the red terminal, the direction in which the cone moves + : front / - : rear | |