JBL 18-inch Professional Cinema Subwoofer with Deep Sound and Amazing Low-Frequency Accuracy for a Pure Cinematic Experience - Model 4641

Subwoofer amplifier JBL 18-inch Professional Cinema 4641: Deep performance and stunning low-frequency resolution for a pure cinematic experience.

• The JBL 4641 subwoofer is one of the most powerful single-unit cinematic subwoofer systems, designed to deliver superior low-frequency performance with amazing clarity and response that extends up to 25 Hz.
• The subwoofer amplifier features innovative Vented Gap Cooled™ (VGC™) technology that ensures effective cooling and distortion reduction even at the highest volume levels, making it ideal for professional cinema setups and high-performance audio theaters.
• Thanks to its direct Bass-Reflex design, the subwoofer produces a natural, smooth bass sound with perfect vibration control, bringing realistic depth to every cinematic scene or sound effect.
• It has been officially approved by Lucasfilm, Ltd. for use in THX® theaters, to be part of the globally certified sound systems for sound accuracy and purity.

Technical description:

• Subwoofer amplifier 4641 on an 18-inch (460 mm) JBL 2241H low-frequency amplifier, featuring a continuous power tolerance of up to 600 watts and a programmable power of 1200 watts, with a peak power of 2400 watts.
• It achieves a sound pressure of up to 126 decibels at one meter, with a high sensitivity of 97 decibels that ensures effective performance even in large environments.
• It was developed using a Symmetrical Field Geometry™ (SFGTM) architecture that reduces second and third-order distortion and maintains clear sound and stable low frequencies.
• The system also features a linear frequency response starting from 22 Hz, making it ideal for bass boosting in cinema or professional audio enhancement applications.

Technical specifications:

• Frequency range (±3 dB): 25 Hz – 100 Hz
• Frequency range (-10 dB): 22 Hz – 500 Hz
• Adapter: JBL 2241H 18-inch (460 mm)
• Nominal resistance: 8 ohms
• Minimum resistance: 6.3 ohms
• Power consumption (AES): 600 watts
• Continuous program power: 1200 watts
• Maximum power (peak): 2400 watts
• Sensitivity: 97 dB (1 W/1 m)
• Maximum sound pressure (SPL): 126 dB
• Energy distortion: 4.3 dB at full power
• Suggested frequencies for the crossover: 80Hz to 150Hz (low filter), and 20Hz (high filter).
• System type: Direct Radiator Bass Reflex
• Dimensions (Height x Width x Depth): 1010 x 674 x 450 mm (39.75 x 26.5 x 17.75 inches)
• Net weight: 60 kg
• Accreditation: THX® Certified

Key features:

• Professional bass performance extending up to 22 Hz with fine detail and rich sound.
• VGCTM technology for magnet cooling and reducing thermal distortion
• Advanced Bass-Reflex structure to ensure perfect balance in bass distribution
• High power up to 2400W peak for long-lasting professional performance
• High sensitivity of 97 dB ensures effectiveness in any sound environment.
• Very low distortion thanks to the symmetrical SFGTM magnetic design
• Official THX® certification confirms compatibility with global cinema systems.
• Smooth, natural sound, perfect for movies, music, and dramatic scenes.

Product summary:

• The JBL 4641 Cinematic Subwoofer gives you an unparalleled professional bass experience thanks to its powerful performance and deep response to low frequencies.
• It is built to withstand intensive use and delivers clear, accurate sound in cinematic or multi-system auditorium environments, making it a reliable choice for any professional audio system.

Additional features:

• Compatible with Dolby Atmos® and DTS:X® systems
• Consistent performance even at high temperatures
• Ideal for installation behind cinema screens
• Advanced audio correction via external EQ for full 25Hz coverage
• Sturdy wooden design resistant to vibration and resonance

Applications used for the product:

• THX® Certified Cinemas
• Large exhibition halls and commercial cinemas
• Production and editing studios
• High-quality home theater systems
• Professional audio applications and large events

Summary and final advice:

• If you are looking for a professional subwoofer that combines depth, power, and precision, the JBL 4641 Cinematic Subwoofer is the perfect choice.
• It delivers balanced performance and rich, detailed sound down to the lowest frequencies, with high reliability and build quality befitting professional cinematic sound systems.