JBL 3181F Professional Cinema Subwoofer
18" Driver | 2600W Peak | Shallow 14.97" Depth | 132 dB Max SPL
Overview
The JBL 3181F is a compact, high-output 18" cinema subwoofer built to deliver exceptional low-frequency performance in space-conscious venues. Whether installed behind perforated screens or within projection booths, its shallow 14.97-inch depth and top-mounted terminals make integration smooth, efficient, and theater-friendly.
Purpose-built for small to mid-sized auditoriums, this passive subwoofer handles up to 2600 watts peak and delivers focused bass extension from 30 Hz to 500 Hz. Its high-excursion driver produces a powerful 132 dB max SPL while maintaining low distortion—ideal for high-impact cinematic effects and immersive surround formats. The rugged MDF cabinet is wrapped in black vinyl for understated presentation and long-term durability. Whether used in traditional 5.1 systems or overhead-equipped environments like Dolby Atmos and DTS:X, the 3181F brings bass that doesn’t just shake the room—it holds it steady.
Technical Specifications
| Category | Specification |
|---|---|
| Transducer | 18" (457 mm) high-excursion woofer |
| Frequency Response | 30 Hz – 500 Hz (-10 dB) |
| Sensitivity | 95 dB SPL (1W/1m) |
| Maximum SPL | 132 dB |
| Nominal Impedance | 4 Ohms (passive) |
| Power Handling | 650W RMS / 1300W Program / 2600W Peak |
| Input Connectors | Top-mounted binding posts |
| Rigging Support | Yes – Dolby Atmos / DTS:X compatible |
| Enclosure Construction | MDF cabinet with black vinyl wrap |
Physical Data
| Dimension | Value |
|---|---|
| Height | 36.7 in (933 mm) |
| Width | 29 in (737 mm) |
| Depth | 14.97 in (380 mm) |
| Net Weight | 92.6 lbs (42 kg) |
| Shipping Weight | ~104 lbs (47.2 kg) |
