Cinema 3635 LC-SUB,18" Pro System B-Stock
Share
In stock
- SKU
- HPD3635-B
. Description
JBL Cinema 3635 LC-SUB 18" Pro System Subwoofer
The JBL 3635 LC-SUB is a cinema-grade subwoofer built for sound operators and venue technicians who need rock-solid low-end reinforcement in tight spaces. Its shallow profile cabinet fits discreetly behind projection screens while delivering the controlled bass punch required in theaters, live venues, and high-end commercial environments. This unit combines JBL's professional engineering with real-world installation constraints that matter on the job.
Design & Build Quality
Built with a compact footprint of 46 x 25.625 x 14.5 inches, the shallow cabinet design minimizes the space required behind-screen while maintaining structural integrity at 113 lb. The barrier strip screw terminals provide secure, professional-grade connections suitable for permanent installations and repeated service cycles.
Audio Performance
The 460 mm (18-inch) low frequency driver delivers a frequency range of 38–100 Hz (±3 dB) with extended response down to 28 Hz at -10 dB, ensuring tight, articulate bass that integrates cleanly with front-of-house systems. Maximum SPL of 125 dB at 1 meter and 300W AES power handling give this subwoofer the headroom and consistency needed for theater systems and large-venue setups where low-end control is non-negotiable.
Key Features
- One 460 mm (18 in) low frequency driver
- Frequency Range (±3 dB): 38 Hz – 100 Hz
- Frequency Range (-10 dB): 28 Hz – 500 Hz
- Power Handling (2Hr AES Rating): 300 W
- Sensitivity: 100 dB
- Nominal Impedance: 8Ω
- Maximum SPL (1m): 125 dB
- Barrier Strip Screw Terminals for secure connections
- Shallow profile cabinet (14.5 in depth) minimizes behind-screen space
- Dimensions: 1168 x 651 x 368 mm (46 x 25.625 x 14.5 in)
- Net Weight: 113 lb (51 kg)
The 3635 LC-SUB delivers dependable performance in installations where compact footprint and professional reliability must coexist without compromise.
More Information
| Condition | Refurbished |
|---|---|
| Country of Manufacture | Mexico |
Reviews
About this B-Stock unit
| Condition | B-Stock - cosmetic blemish, fully functional |
|---|---|
| Price vs new | $278 under the new unit ($1,390) |
Prefer a brand-new one? Cinema 3635 LC-SUB,18" Pro System is in the catalog at $1,390.
At a Glance
The JBL Cinema 3635 LC-SUB is an 18-inch cinema-grade subwoofer engineered for theater, high-end venues, and large live-sound systems that demand controlled, articulate bass in a shallow footprint. Built for sound professionals and venue operators running permanent or touring rigs, it delivers tight low-end from 38–100 Hz (±3 dB) with 125 dB SPL output and fits discreetly behind projection screens or into space-constrained installations. Choose it when you need studio-grade bass control and dependable 300W power handling on a professional stage or theater floor without sacrificing real estate.
Who This Is For
| Best suited for | Live Performance, Studio Sessions, Theater/Cinema |
|---|---|
| Tonal character | Tight bass, articulate low-end, controlled, cinema-grade, extended response |
| Less specialized for | Home Recording, Practice (it will do it; instruments voiced for that style do it more easily) |
| Skill level | Professional |
Frequently Asked Questions
What does B-Stock mean for this subwoofer?
B-Stock means this unit is fully functional and performs to spec, but has minor cosmetic imperfections that do not affect audio quality or operation. It is a professional-grade product at a reduced price.
Will this subwoofer fit behind a projection screen?
Yes. The shallow cabinet depth of 14.5 inches is specifically designed to fit discreetly behind projection screens in theater and cinema installations, making it ideal for venues where screen placement is a constraint.
What is the frequency range and maximum output?
The 3635 LC-SUB delivers 38–100 Hz (±3 dB) with extended response down to 28 Hz at -10 dB, and produces a maximum SPL of 125 dB at 1 meter. It handles 300W AES power, enabling integration into large-venue and theater systems.
How is this subwoofer connected to other gear?
The unit features barrier strip screw terminals for secure, professional-grade connections suitable for permanent installations and integrated sound systems.
Is this suitable for home recording or small studios?
No. This subwoofer is engineered for professional theater, cinema, and large-venue applications. It is not recommended for home recording or practice environments where smaller, more room-adaptive solutions are appropriate.
Do I pay sales tax on this order?
Sales tax is collected only on orders shipped to California; orders shipped to any other US state are not charged sales tax at checkout when you buy direct from our website. At a typical 7% rate that is an estimated $78 less at checkout than the same listed price on a marketplace, which collects sales tax as the facilitator in most states. Buyers remain responsible for any use tax their state applies. Free US shipping and 30-day returns are included.
Similar Gear
Complete the Rig
Gear that pairs well with this.
✨ For You
Based on what you've been looking at.