Description
The JBL 4642A is a high-output dual 18-inch cinema subwoofer designed to deliver powerful and accurate low-frequency performance for professional theater and sound reinforcement applications. Featuring two JBL 2241H low-frequency transducers in a bass-reflex enclosure, the system provides exceptional bass extension, high SPL capability, and outstanding reliability. Approved for THX® installations, the 4642A is ideal for enhancing both analog and digital cinema soundtracks with deep, impactful bass.
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Key Features
- Dual 18″ (460 mm) high-performance low-frequency transducers
- Bass-reflex enclosure for extended low-frequency response
- 1200W continuous pink noise power handling
- 2400W continuous program power handling
- Peak power handling up to 4800W
- JBL 2241H VGC™ (Vented Gap Cooling) drivers
- Symmetrical Field Geometry (SFG™) magnet structure
- High sensitivity with low power compression
- Excellent low-frequency extension down to 20 Hz (-10 dB)
- THX® approved for professional cinema installations
Technical Specifications
- Speaker Type: Dual Driver Cinema Subwoofer
- Transducers: 2 × JBL 2241H 18″ (460 mm) Low-Frequency Drivers
- Enclosure Type: Bass-Reflex
- Frequency Range (±3 dB): 22 Hz – 100 Hz
- Frequency Range (-10 dB): 20 Hz – 500 Hz
- Rated Impedance: 4 Ω
- Nominal Impedance: 2 × 8 Ω
- Minimum Impedance: 3.2 Ω
- Power Handling (AES): 1200 W
- Continuous Program Power: 2400 W
- Peak Power: 4800 W
- Sensitivity: 100 dB (1W/1m)
- Maximum SPL: 131 dB (1m)
- Axial Sensitivity: 101 dB (50 Hz – 500 Hz), 100 dB (40 Hz – 100 Hz)
- Dimensions (H × W × D): 762 × 1219 × 610 mm (30 × 48 × 24 in)
- Net Weight: 98 kg (216 lbs)
