--- product_id: 21907392 title: "Professional SRX828S Portable, Passive, Non-Powered Subwoofer System, Dual 18-Inch, Black" brand: "jbl" price: "€ 5516.40" currency: EUR in_stock: true reviews_count: 8 category: "Jbl" url: https://www.desertcart.hr/products/21907392-professional-srx828s-portable-passive-non-powered-subwoofer-system-dual-18 store_origin: HR region: Croatia --- # 141 dB max SPL output 18mm wooden enclosure durability 4800W peak power handling Professional SRX828S Portable, Passive, Non-Powered Subwoofer System, Dual 18-Inch, Black **Brand:** jbl **Price:** € 5516.40 **Availability:** ✅ In Stock ## Summary > 🎶 Own the low end, command the room with JBL’s SRX828S subwoofer! ## Quick Answers - **What is this?** Professional SRX828S Portable, Passive, Non-Powered Subwoofer System, Dual 18-Inch, Black by jbl - **How much does it cost?** € 5516.40 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/21907392-professional-srx828s-portable-passive-non-powered-subwoofer-system-dual-18) ## Best For - jbl enthusiasts ## Why This Product - Trusted jbl brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Seamless Integration:** M20 pole cup and indexed feet enable effortless stacking and pairing with SRX812, SRX825, or SRX835 for pro-level setups. - • **Ergonomic Portability:** Designed with non-fatiguing handles and compact form factor for easy transport—because your gear should keep up with your hustle. - • **Tour-Ready Durability:** Built with 18mm wood, 14-gauge steel grilles, and JBL’s DuraFlex finish to withstand relentless gigs and transport. - • **Precision Low-End Control:** Wide 30-150 Hz frequency range with JBL’s patented Differential Drive tech ensures crystal-clear, distortion-free bass. - • **Powerhouse Bass Performance:** Dual 18-inch woofers deliver earth-shaking low frequencies with 141 dB SPL—feel every beat. ## Overview The JBL Professional SRX828S is a passive dual 18-inch subwoofer engineered for high-impact, professional audio applications. Delivering up to 141 dB SPL and handling 4800W peak power, it combines rugged 18mm wooden enclosures and steel grilles with JBL’s patented DuraFlex finish for unmatched durability. Designed for easy transport and versatile configurations, it integrates seamlessly with JBL’s SRX speaker lineup, making it the ultimate choice for touring musicians, DJs, and large venue installations seeking powerful, precise bass. ## Description Introducing the JBL Professional SRX828S, the ultimate passive double 18” subwoofer designed for concert, touring, or installed use. Whether you’re a musician, band, DJ, or need a robust sound system for public speaking, performance venues, corporate spaces, educational facilities, or houses of worship, the SRX828S is your go-to solution. This subwoofer is engineered to deliver powerful and precise low-frequency sound, enhancing your audio experience with unmatched clarity and depth. The SRX828S features two 18” woofers with an 8 Ohm impedance, capable of handling 4800W Peak, 2400W Program, and 1200W Continuous power. With a frequency range of 30Hz-150Hz and a frequency response of 47Hz-120Hz, it ensures that every beat and note is reproduced with exceptional accuracy. The subwoofer can achieve a maximum SPL of 141dB, making it perfect for high-energy performances and large venues. Its 18mm wooden enclosure, 14-gauge steel grilles, and patented DuraFlex finish guarantee durability and longevity, even in the most demanding environments. Designed with convenience in mind, the SRX828S includes a standard M20 pole cup for easy integration with top boxes and indexing feet for secure stacking in both standard and cardioid positions. When paired with JBL SRX812, SRX825, or SRX835 speaker systems, you can achieve optimal performance and sound coverage. The subwoofer is fully supported in Audio Architect, providing seamless control and customization. Ergonomically designed handles ensure a comfortable grip, making transportation and setup a breeze. Elevate your sound system with the JBL Professional SRX828S subwoofer and experience the perfect blend of power, precision, and durability. Whether you’re setting up for a concert, corporate event, or any other performance, this subwoofer is built to exceed your expectations. Review: Best Dual 18” Sub for the price point🔊 - These can drop some serious bass it’s all about how you power and process these subwoofers. They are pretty compact compared to other dual 18” cabinets and easy to move around on some good 4” casters. We keep these in our inventory double stacked on wheel dolly’s but easily move them up truck ramps and thru doorways. When using these in small to medium sized clubs 2-3 stacked on a wheel cart will normally give you everything you need for low end extension. Depending on what kind of music you’re doing you may be able to get away using less subs but we work with bass heavy live bands and DJs that’s trying to beat up the block with bass so we come ready. •2 man lift but their not that heavy at all. • They work good for Kick drum punch , 808s and low end extension. •When this subwoofer is double stacked it’s the perfect height and foundation for front of the house speakers. •The coupling effect from have these double or triple stacked is the real deal. •We use these for sound production on live bands with no issues. •We have used these vertically and horizontally successfully. •You need at least 2 of these to keep up with RCF Sub 8006. •For the Price, Performance and Weight there really isn’t a lot of competition and we do own higher end gear. Review: Sound quality is great - This is a great subwoofer for a big space or outdoor venue. It is very big, but does a much better job than smaller subwoofers I've used. The sound quality is really good. Everything sounds clear and crisp. The box quality made. It is strong and assembled without flaws. It should withstand a lot of wear and tear from being transported if it travels around a lot. JBL has always made good speakers in my experience and this one seems top of the line too. ## Features - Portable, Passive, Non-Powered Subwoofer System, Dual 18-Inch. Technical specifications: 141 dB maximum SPL output; 30-150 Hz frequency range; 47-120 Hz frequency response; Power Rating of 1200W continuous, 2400W program, 4800W peak - Durability - With best in class 18mm wooden enclosures, 14 gauge steel grilles, and JBL’s Patented DuraFlex finish, SRX800 speakers are built to last and withstand a lifetime of hard tour use. - Ergonomically designed handles support an easy, non-fatiguing grip for streamlined handling, and M10 suspension points, indexed feet, and pole/tripod mounts support a wide array of configurations - JBL’s patented Differential Drive Technology incorporates lower mass ferrite magnets for reduced weight, increased power handling, exceptionally low distortion and extended low frequency response. - Achieve optimal performance and sound coverage when paired with JBL SRX812, SRX825 or SRX835 speaker systems. Create a perfect system for live music performances, mobile DJs, fixed DJ setups, singers, bands, corporate spaces, public speaking PA systems, houses of worship, sound system rentals, tours, and permanent installations. - This product is sourced from an authorized JBL Professional North American dealer and includes the official JBL Professional manufacturer’s warranty. The warranty is valid only for products purchased from authorized JBL Professional North American dealers within the United States. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B013LGCSWW | | Additional Features | Portable | | Antenna Location | public | | Audio Driver Size | 18 Inches | | Audio Driver Type | Dynamic Driver | | Audio Output Mode | Mono | | Best Sellers Rank | #16,460 in Musical Instruments ( See Top 100 in Musical Instruments ) #55 in Stage Subwoofers #8,427 in Music Recording Equipment | | Brand | JBL | | Color | Black | | Compatible Devices | Amplifier | | Compatible with Vehicle Type | Car | | Connectivity Protocol | Wired (speakON NL4) | | Connectivity Technology | Wired | | Control Method | App | | Controller Type | Remote Control | | Customer Package Type | FFP | | Customer Reviews | 4.2 out of 5 stars 16 Reviews | | Enclosure Material | Wood, Steel | | Frequency Response | 120 Hz | | Global Trade Identification Number | 00691991001666 | | Is Waterproof | False | | Item Dimensions D x W x H | 22.6"D x 47.4"W x 26.8"H | | Item Type Name | JBL Professional SRX828S Compact Dual Passive Subwoofer System, 18 Inch (SRX828S) | | Item Weight | 137 Pounds | | MP3 player | No | | Manufacturer | JBL Professional | | Model Name | SRX828S | | Model Number | SRX828S | | Mounting Type | Tripod, Floor | | Number of Audio Channels | 2.0 | | Number of Items | 1 | | Number of Power Levels | 1 | | Power Source | Corded Electric | | Signal-to-Noise Ratio | 141 dB | | Speaker Maximum Output Power | 4800 Watts | | Speaker Size | 18 Inches | | Speaker Type | Passive Subwoofer | | Specific Uses For Product | live music performances, mobile DJs, fixed DJ setups, singers, bands, corporate spaces, public speaking PA systems, houses of worship, sound system rentals, tours, and permanent installations | | Subwoofer Connectivity Technology | Wired | | Subwoofer Diameter | 18 Inches | | UPC | 691991001666 | | Unit Count | 1.0 Count | | Warranty Description | This product is sold by an authorized jbl professional north american dealer and includes the official jbl professional manufacturer’s warranty. The warranty is valid only for products purchased from authorized sellers within the united states. Full details are available on the jbl professional website. | | Warranty Type | Limited Warranty | | Water Resistance Level | Not Water Resistant | | Wireless Technology | No Wireless Communication Technology | | Woofer Diameter | 18 Inches | ## Product Details - **Audio Output Mode:** Mono - **Brand:** JBL - **Connectivity Technology:** Wired - **Frequency Response:** 120 Hz - **Speaker Maximum Output Power:** 4800 Watts ## Images ![Professional SRX828S Portable, Passive, Non-Powered Subwoofer System, Dual 18-Inch, Black - Image 1](https://m.media-amazon.com/images/I/81cdLUsBTWL.jpg) ## Available Options This product comes in different **Size, Style** options. ## Questions & Answers **Q: This is listed as a speaker system. How many speakers are included?** A: One speaker only. You may consider it a system as they are active. They have a Class D amplifier and a DSP built in. **Q: Can I use this for my home stereo, in 14’ by 25’ living room** A: This is designed more for a 140' by 250' living room.... I'm guessing that, if you have 2 grand to spend on a sub, and have to ask this question... Return the stolen money. **Q: I am planning to buy a sound system for 1000 people venues or a little more mostly out door. What would you guys recomend me tu buy and quantities?** A: Buy 4 of these, 2 per side and 2 or 4 subs. I would say 4 subs. **Q: What cables (short) are needed connect my phone's audio out to srx835p? should modify anything when providing unbalanced mono input from phone?** A: First I will say the speakers are killer and destroy they can go so loud perfect for my outside venue. I run mine off of a mixer board (they are not expensive) so I have a Blootooth reciever into the board going into the speakers. I have not tried it but on other speakers like this I simply used a 3.5mm output from my phone with a 3.5mm TRS to two 6.35 mm TRS plugs that go into the speakers. search for example on amazon "UGREEN 3.5mm 1/8" TRS to Dual 6.35mm 1/4" TS Mono Stereo Y-Cable Splitter Cord Compatible for iPhone, iPod, Computer Sound Cards, CD Players, Multimedia Speakers and Home Stereo Systems 15FT" You could also buy a bluetooth reciever/transmitter and plug the 3.5mm into that so you can walk around with your phone and play tunes that way. For example something like this again on amazon (there are many) APEKX Clip Bluetooth Audio Adapter for Headphones, Headset, Speaker, Wireless Receiver with MIC for Hands-Free Call and Music ## Customer Reviews ### ⭐⭐⭐⭐⭐ Best Dual 18” Sub for the price point🔊 *by K***. on January 5, 2025* These can drop some serious bass it’s all about how you power and process these subwoofers. They are pretty compact compared to other dual 18” cabinets and easy to move around on some good 4” casters. We keep these in our inventory double stacked on wheel dolly’s but easily move them up truck ramps and thru doorways. When using these in small to medium sized clubs 2-3 stacked on a wheel cart will normally give you everything you need for low end extension. Depending on what kind of music you’re doing you may be able to get away using less subs but we work with bass heavy live bands and DJs that’s trying to beat up the block with bass so we come ready. •2 man lift but their not that heavy at all. • They work good for Kick drum punch , 808s and low end extension. •When this subwoofer is double stacked it’s the perfect height and foundation for front of the house speakers. •The coupling effect from have these double or triple stacked is the real deal. •We use these for sound production on live bands with no issues. •We have used these vertically and horizontally successfully. •You need at least 2 of these to keep up with RCF Sub 8006. •For the Price, Performance and Weight there really isn’t a lot of competition and we do own higher end gear. ### ⭐⭐⭐⭐⭐ Sound quality is great *by W***N on October 15, 2018* This is a great subwoofer for a big space or outdoor venue. It is very big, but does a much better job than smaller subwoofers I've used. The sound quality is really good. Everything sounds clear and crisp. The box quality made. It is strong and assembled without flaws. It should withstand a lot of wear and tear from being transported if it travels around a lot. JBL has always made good speakers in my experience and this one seems top of the line too. ### ⭐⭐⭐⭐⭐ My Top Choice ! Worth Every Penny ! *by ☮***Y on July 13, 2018* Amazing difference. I had no idea of the old sub's inadequacies until this one was powered up. Required nothing special, uses regular 110 volt electric with three prong plug. Should work with any standard PA. This rocks and is worth every penny. If I could change anything, it would have been to have casters included, but they were easy to order online after the fact. Highly recommend. ## Frequently Bought Together - JBL Professional Compact Passive System, 18 Inch (SRX828S), Black, 18-Inch Dual Subwoofer - GearIT 20ft, 6-Pack XLR Male to Female Mic Cable, 3-Pin Balanced Shielded, Black, for Mic Mixer, Recording Studio, Podcast - Gearlux XLR Microphone Cable, Fully Balanced, Male to Female, 10 Feet - Single Pack --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.hr/products/21907392-professional-srx828s-portable-passive-non-powered-subwoofer-system-dual-18](https://www.desertcart.hr/products/21907392-professional-srx828s-portable-passive-non-powered-subwoofer-system-dual-18) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-07-04*