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Did you know AMS is the only music distributor with four distribution centers? And that means we can offer super-fast shipping on all your music products. Whether you don’t want the spark of inspiration to fade or you really need that replacement speaker before the next show, we have you covered anywhere in the U.S. And even better, it’s FREE!
You shouldn’t have to pay extra for a little peace of mind. When you purchase from AMS, you’ll get a free 12-month extended warranty to cover your purchase — and that’s in addition to any manufacturer’s warranties! Thousands of items in our catalog feature the “Gold Lock Extended Warranty,” so you can feel confident in your purchase.
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Sometimes the gear on the computer screen seems like a better fit than when you actually get your hands on it. We understand, and that’s why AMS offers an industry-leading 45-day money-back guarantee. If you’re not happy with an item, you have a full month and a half to send it back! We don’t want to just sell you gear. We want to sell you the RIGHT gear — even if it takes a few tries.
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Don’t sell your soul to a creditor to get the gear you need. At AMS, we want to lower the barriers to create. That’s why we offer in-house 0% financing, and you don’t even have to open a new line of credit! Spread out payments on your credit card to simplify financing and avoid hefty late fees or service charges. Cost shouldn’t interfere with your creativity.
If the bass in your current rig feels a little bashful, the JBL SRX918S is here to bring the boom. This 18-inch active subwoofer doesn’t just push air; it punches through the mix with a massive, chest-thumping low end that anchors your entire sound system.
Built to perfectly complement the SRX900 Series, this sub acts as the muscular foundation of your line array. It delivers tour-grade sound reinforcement without the headache of hauling racks of heavy outboard amps. You get blistering, beautiful bass that effortlessly fills the room and keeps the crowd moving.
Differential Drive for Deep, Dynamic Delivery
A subwoofer is only as good as its driver, and the SRX918S packs a serious punch. Housing a custom JBL 2279-1 18-inch woofer, this cabinet utilizes dual voice coils and dual magnetic gaps to run cooler and hit harder. Instead of a muddy rumble, you get tight, transparent, and thunderous low frequencies that remain incredibly linear even when you push the volume to the absolute limit.
Differential Drive Technology: By doubling up on the voice coils and gaps, this sub radically improves heat dissipation, meaning you get a wider dynamic range and significantly lower power compression.
Bottomless Bass Response: Dive deep with a frequency response that plunges all the way down to a spine-tingling 35 Hz, giving your mixes that massive, physical impact.
Slip Stream Port Design: A generously sized low-frequency port ensures maximum airflow while slashing audible turbulence, keeping your low end clean and punchy instead of breathy and distorted.
Brains Behind the Brawn
Raw power is great, but intelligent power is better. The SRX918S comes fully loaded with a built-in DSP and amplification package that practically tunes itself. It takes the guesswork out of system optimization, handing you a plug-and-play experience that sounds spectacular straight out of the box. From advanced filters to precision delays, the onboard processing handles the heavy lifting so you can focus on the mix.
Comprehensive DSP: Tweak your tone to perfection with 24 user-adjustable filters, up to 2,000 ms of delay, Array Size Compensation, and FIR-based Throw Distance Correction.
Directional Control: Keep the bass focused on the dancefloor and off the stage. Easily switch between omnidirectional or cardioid configurations directly from the rear LCD or the control software.
Cross-Platform Software: Command your entire rig from the palm of your hand or the desk of your choice, with full-featured software available for Windows, macOS, and iPad OS.
Scalable, Seamless, and Stage-Ready
Touring systems need to adapt on the fly, and the SRX918S is a team player. Designed specifically to integrate with the entire SRX900 ecosystem, it scales up or down to match the exact size of your venue. Start with a humble ground stack for a club gig, and effortlessly expand to a massive flown array for outdoor festivals. It all locks together visually and acoustically.
Acoustic Synergy: Custom-tuned to seamlessly match the phase characteristics and voicing targets of all SRX900 full-range speakers and other JBL tour sound products.
Flexible Deployment: Stack it up on the ground with optional base plate accessories, or integrate it directly into your flown line array setup with ease.
Future-Proof Expansion: Because the entire system is highly scalable, you can easily start small and add more cabinets to your arsenal as your production needs grow.
The Heartbeat of Your Audio System
The JBL SRX918S is what happens when relentless engineering meets the raw demand for earth-shaking bass. It captures the legendary power of JBL's tour-grade systems while offering the intelligent processing needed to conquer any venue. It’s an active subwoofer for audio professionals who demand tight, thunderous lows without compromising on clarity or control.
Frequently Asked Questions About the JBL SRX918S
Is the JBL SRX918S an active or passive subwoofer?
The JBL SRX918S is an active (powered) subwoofer. It features a fully integrated built-in amplifier and DSP, meaning you don’t need an external power amplifier to drive it.
Can I use the SRX918S in a cardioid setup?
Yes, the SRX918S supports both omnidirectional and cardioid configurations. You can easily switch between these modes using the rear panel LCD or the dedicated control software.
What is the frequency response of the SRX918S?
This 18-inch powered subwoofer delivers a very deep, transparent, and linear bass response that goes all the way down to 35 Hz.
Does the SRX918S work with other JBL speakers?
Absolutely. It’s acoustically compatible with all SRX900 full-range speakers and is designed with common voicing targets to integrate coherently with other JBL tour sound products.
How do I control the DSP on the SRX918S?
You can access the DSP presets directly from the rear panel's LCD screen. Alternatively, you can use JBL's full-featured software package, which is compatible with Windows, macOS, and iPad OS.
JBL SRX918S Features:
Single 18-inch active subwoofer designed for SRX900 Series systems
JBL 2279-1 woofer with patented Differential Drive technology
Transparent, linear bass response plunging down to 35 Hz
Built-in amplifier and DSP for a consistent plug-and-play experience
Large low-frequency port design to improve airflow and reduce turbulence
24 user-adjustable filters, 2,000 ms delay, and FIR-based correction filters
Supports omnidirectional and cardioid configurations via software or rear LCD
Acoustically compatible with 60 Hz and 80 Hz operating modes
Full-featured control software available for Windows, macOS, and iPad OS
Scalable design integrates seamlessly with other JBL tour sound products
Warranty: As of April 1, 2022, 7 Years Extended. The extended warranty applies to all product components, excluding batteries, on the Eon 700 Series, Eon One Compact, Eon One MK2, and PRX One systems. 3 Years on Batteries on the rechargeable models; 3 Years on Amps, PRX700 & PRX800 Series; 2 Years on Enclosures & Other; 1 Year on JBL Bags
