JBL 4645C Single 460 mm (18 in.) Subwoofer System. The JBL Model 4645C is a high quality subwoofer system, featuring an advanced technology 460 mm (18 in), low frequency transducer mounted in a direct radiator, bass-reflex enclosure for smooth response to the lowest audible frequencies. The 4645C is ideal for low-frequency augmentation of either analog or digital soundtracks in motion picture theaters and for general sound reinforcement applications.
Rated Impedance |
8 ohms |
Minimum Impedance |
7.2 ohms |
Power Handling Capability |
- |
Continuous Pink Noise |
800 W |
Continuous Program |
1600 W |
Peak Power |
3200 W |
Output Capability |
- |
Axial Sensitivity |
50 Hz to 500 Hz; 99 dB, 1W @ 1m |
Power Compression |
- |
At -10 dB power (80 W) |
0.6 db |
At -3 dB power (400 W) |
2.0 db |
At rated power (800 W) |
3.3 db |
Net Weight |
63 kg (138 lbs.) |
Dimensions H x W x D |
1010 mm x 674 mm x 450 mm |