JBL 4642A 2X18 Subwoofer System
The JBL 4642A is a professional-grade dual 18-inch subwoofer engineered for recording studios and mastering facilities demanding authoritative low-frequency performance and exceptional reliability. Built to cinema standards, this system delivers the punch and control required in high-end control rooms where accurate bass monitoring directly impacts mix decisions.
Powerful Output with Tight, Articulate Bass
This system handles 2400 Watts continuous program power with room to spare, while maintaining a usable response extending to 22 Hz at –10 dB and flat to 22 Hz with external EQ. The 506-liter enclosure tuned to 25 Hz ensures tight, articulate bass rather than bloated low end—critical for accurate monitoring during tracking, mixing, and mastering sessions where low-frequency clarity directly impacts your final product.
Driver Technology & Consistent Performance
Each of the dual 460 mm (18-inch) low-frequency transducers features a 100 mm (4-inch) voice coil and employs JBL’s patented Vented Gap Cooling (VGC) process, minimizing power compression and heat buildup during extended recording and mixing sessions. This design approach ensures consistent output across long studio days, keeping your low-end reference stable from first take through final mixdown.
Key Features
- Dual 460 mm (18 in) direct radiator low-frequency transducers in bass-reflex enclosure
- 1200 Watts continuous pink noise power handling; 2400 Watts continuous program power handling
- Usable response to 22 Hz (–10 dB, no EQ); flat to 22 Hz (–3 dB) with external EQ
- Sensitivity: 100–101 dB (1W @ 1m)
- 4 Ohm impedance
- 506-liter internal volume enclosure tuned to 25 Hz
- 19 mm particle board construction with 25 mm baffle and back panel; extensively braced
- 2241H transducers with Vented Gap Cooling (VGC) for reduced power compression
- 100 mm (4-inch) voice coil per driver
- Dimensions: 762 × 1219 × 610 mm (H × W × D); Weight: 98 kg
- THX®-approved by Lucasfilm, Ltd. for cinema installations
The 4642A combines THX cinema certification with proven JBL driver technology, making it a reliable foundation for control rooms where accurate bass reproduction translates to mixes that translate.
