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User Manual for JBL 4641 Cinema Series 18" Passive Subwoofer Click to enlarge the picture
Contents of the user manual for the JBL 4641 Cinema Series 18" Passive
- Product category: PA Speakers JBL
- Brand: JBL
- Description and content of package
- Technical information and basic settings
- Frequently asked questions – FAQ
- Troubleshooting (does not switch on, does not respond, error message, what do I do if...)
- Authorized service for JBL PA Speakers
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User manual for the JBL 4641 Cinema Series 18" Passive contain basic instructions
that need to be followed during installation and operation.
Before starting your appliance, the user manual should be read through carefully.
Follow all the safety instructions and warnings, and be guided by the given recommendations.
User manual is an integral part of any JBL product,
and if it is sold or transferred, they should be handed over jointly with the product.
Following the instructions for use is an essential prerequisite for protecting
health and property during use, as well as recognition of liability on the part of the manufacturer
for possible defects should you make a warranty claim. Download an official JBL user manual in which you will find instructions on how to install, use, maintain and service your product.
And do not forget – unsuitable use of a JBL product will considerably shorten its lifespan!
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Product description The JBL 4641 Cinema Series 18" Passive Subwoofer utilizes the company's patented Vented Gap Cooling (VGC) process to pump air over and around the unit's 4" voice coil to improve heat transfer, reduce operating temperature, increase power handling, and reduce power compression within a direct radiator bass-reflex enclosure. The driver handles 1200 Watts of continuous program power to deliver a usable frequency response down to 22 Hz (-10 dB) with external EQ processing.
The 4" voice coil benefits from a winding technique that offers greater thermal stability and increased power handling. All elements of the cone, voice coil and suspension system are optimized for a smooth high frequency response. The subwoofer's magnet structure and compliance enable long peak-to-peak excursions without damage to the speaker.
The dense particle board enclosure is equipped with an extra-large front panel port, and the cabinet is tuned to a low 25 Hz. The subwoofer is designed primarily for professional use in cinema and screening room installations, although the unit will work reliably in most general sound reinforcement applications. The unit is officially approved by Lucas Films Ltd. for certified THX applications with both analog and digital soundtracks. - Passive Cinema Series installation subwoofer with 18" woofer and tuned, ported enclosure
- Approved by Lucasfilm, Ltd. for THX installations
- 600 watts continuous pink noise, 1200 watts continuous program power handling
- Reliable frequency reproduction down to 25 Hz (-10 dB, no EQ), flat to 25 Hz(-3 dB, external EQ)
- Large 4" voice coil for driver
- VGC(Vented Gap Cooled) transducer reduces operating temperature and power compression, increases power handling
- Computer-aided transducer magnet design for flux density, field saturation, lowered weight and improved harmonic distortion
- High sensitivity, high SPL capability, and low distortion
- Dense, ported, 0.75" particle board enclosure tuned to 25 Hz with cabinet baffle and back panel with bracing on all panels
In the Box JBL 4641 Cinema Series 18" Passive Subwoofer Limited 5-Year Warranty Table of Contents
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Technical parametersJBL 4641 Specs | | | Configuration | Passive Subwoofer | | Total Power Capacity | 600 W RMS
1200 W Program
2400 W Peak | | System Impedance | 6.3 Ohms
8 Ohms (Nominal) | | | | LF Driver | 1 x 18" / 457.2 mm Woofer | | LF Voice Coil | 4" / 10.2 cm | | | | Frequency Range | 25 Hz to 500 Hz -10 dB | | Maximum SPL | 125 dB (Continuous)
131 dB (Peak) | | Speaker Sensitivity | 98 dB | | | | Construction Material | Particle Board | | Dimensions | 39.0 x 25.5 x 17.8" / 991.0 x 648.0 x 451.0 mm | | Weight | 131 lb / 60 kg | | | | Package Weight | 140.0 lb | | Box Dimensions (LxWxH) | 44.0 x 30.0 x 22.5" |
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