JBL 428F Professional High-Power Dual 18" 1600W Passive Cinema Subwoofer

System installers in need of a power subwoofer for small- to medium-sized cinema theaters will be impressed with the passive JBL 4281F, a professional, high-powered cinema subwoofer that provides stunning bass for an 80 to 150-seat cinema theater. The 15" shallow depth is ideal for behind the screen placement, while the built-in rigging points allow for immersive sound installations such as Dolby Atmos and DTS:X. The 4281F features two 18" woofers with 1600W continuous (3200W program) power handling that provides a 30 to 500 Hz frequency response and a max SPL of 139 dB.

At a Glance

• Shallow 14.97" (355 mm) 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
• 4-pin connectors allow driving the two transducers separately (discrete mode) or together (parallel mode)
• Dual 18-inch transducers deliver higher output and superior bass extension
• Footprint matches both the JBL 3153 and 4253 screen speakers and the C200 Series cinema speakers to build complete system solutions
• 1600W rated power
• 4-ohm impedance in parallel mode can be driven with Crown XLC Series amps
• 139 dB peak SPL
• Frequency Range: 30 to 500 Hz (-10 dB)

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 to 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

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 (available separately) monitor the status of amplification and speaker loads through third-party control and TMS systems when used with the JBL CPi2000 processor (also available separately). 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.