Sound Technology

4281F

PROFESSIONAL HIGH-POWER CINEMA SUBWOOFER

Where to buy
The JBL 4281F cinema subwoofer, part of the JBL Cinema Series, delivers fidelity and performance synonymous with the JBL name at a competitive price point for cost-conscious theater owners seeking to offer a premium sound experience. The 1,600-watt 4281F delivers room-shaking low end for a variety of cinema configurations, including Dolby Atmos and DTS:X installations. The 4281F works seamlessly with the entire JBL Cinema Series, which includes two 3-way screen speakers and a surround speaker. Combine Cinema Series speakers with the JBL CPi2000 cinema processor and Crown XLC Series amps to build a fully integrated JBL cinema sound solution.

Premium Sound Without the Premium Price

With the Cinema Series, it’s never been easier to step into the stunning sound of a JBL cinema system. The Cinema Series 4281F subwoofer is engineered and built to the same standards of all other JBL cinema products, providing powerful, punchy low-end coverage in the 30–500 Hz range; pair them with Cinema Series 3153 and 4253 screen speakers and 8102 surrounds for a complete solution.


Rock-Solid and Reliable

Trust JBL Cinema Series speakers and subs to provide peak performance throughout the life of your investment: Systems are designed for superior overall efficiency; transducer-protection circuitry ensures long-term stability.


Deploy With Ease, Any Way You Please

The Cinema Series is designed for streamlined system setup and operation in a range of configurations. 4281F subwoofers operate in 4-ohm mode, enabling them to be driven with Crown XLC Series amps. The 4281F’s 4-pin connectors allow driving the two transducers separately (discrete mode) or together (parallel mode). Hardware is engineered for maximum versatility, with enclosure-top input terminals and binding-post connectors.


Monitor System Health

Accurate diagnostics help keep your system running at peak performance: Crown XLC amplifiers monitor the status of amplification and speaker loads through third-party control and TMS systems when used with the JBL CPi2000 processor; front-panel indicators monitor key statistics such as signal, clip, bridged operation, power standby and fault.


Build an Integrated Sound System

Complete your JBL cinema sound system with the JBL CPi2000 cinema processor, which provides audio enhancement including DSP, room EQ tuning, volume control and system fault detection. The JBL CPi2000 processor includes Cinema Series speaker presets for better sound and performance and easier deployment, and can send amplifier and speaker status to a central TMS (Theater Management System) control system.

  • Shallow 14.97-inch (355mm) depth saves space behind screens
  • Connectors are mounted on enclosure top to preserve minimum depth
  • Built-in rigging points facilitate wall mounting for immersive sound installations such as Dolby Atmos and DTS:X
  • Binding-post input connectors are consistent with other JBL cinema speakers and easy to wire
  • Footprint matches both the JBL 3153 and 4253 screen speakers and the C200 cinema speaker series to build complete system solutions
  • 4-ohm impedance; can be driven with Crown XLC Series amps
  • 1,600W rated power
  • 139 dB peak SPL
  • Frequency response: 30 Hz–500 Hz (-10 dB) (4π)
  • 4-pin connectors allow driving the two transducers separately (discrete mode) or together (parallel mode)

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