Overview
The JBL Model 4642A is a high quality subwoofer system, featuring an advanced technology 460 mm (18 in), low frequency transducers mounted in a direct radiator, bass-reflex enclosure for smooth response to the lowest audible frequencies. The 4642A is ideal for low-frequency augmentation of either analog or digital soundtracks in motion picture theaters and for general sound reinforcement applications.
Features
- 1200 Watts Continuous Pink Noise, 2400 Watts Continuous Program Power Handling
- Usable response to 22 Hz (-10 dB, no EQ), flat to 22 Hz (-3 dB) with External EQ
- 2241H VGCTM Vented Gap Cooled Drivers – High Sensitivity – Low Power Compression – High Maximum-SPL Capability – Low 2nd and 3rd Harmonic – Distortion – Symmetrical Field Geometry SFGTM – Magnet Structure – Long Excursion Capability
- proved by Lucasfilm, Ltd. for THX installations
Specifications
| Rated Impedance | 4 ohms |
| Minimum Impedance | 3.2 ohms |
| Power Handling Capability | - |
| Continuous Pink Noise | 1200 Watts |
| Continuous Program | 2400 Watts |
| Peak Power | 4800 Watts |
| Output Capability | - |
| Axial Sensitivity | 50 Hz to 500 Hz; 101 dB, 1W @ 1m 40 Hz to 100 Hz; 100 dB, 1W @ 1m |
| Net Weight | 98 kg (216 lbs.) |
| Dimensions H x W x D | 762 mm x 1219 mm x 610 mm 30 in x 48 in x 24 in |
