Used JBL SRX828SP units are dual 18-inch self-powered subwoofers built for professional live events, installations and studio use, delivering deep, punchy low-frequency output. As a second-hand buy, the SRX828SP offers professional-grade build quality at a fraction of original cost. Scroll down to see the used JBL SRX828SP listings currently available.
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JBL SRX828SP specifications
| Brand | JBL |
| Segment | Audio |
About the JBL SRX828SP
The JBL SRX828SP is an active dual 18-inch subwoofer designed for audio professionals in live event, installation and studio environments. Self-powered and built to JBL's professional engineering standards, it is recognised for its robust construction, reliability and ability to produce deep, full bass. The SRX828SP is frequently deployed as part of a larger PA system alongside full-range self-powered speakers, making it a versatile foundation for demanding sound reinforcement applications.
JBL SRX828SP — buyer FAQs
What is the JBL SRX828SP and what is it used for?
The JBL SRX828SP is an active dual 18-inch subwoofer designed for professional use. It is self-powered, meaning no external amplifier is required, and is built to handle deep low-frequency reproduction in live event, installation and studio environments. It is commonly deployed as part of a larger PA system alongside full-range self-powered speakers to form a complete sound reinforcement setup.
Who makes the JBL SRX828SP and where does it sit in the JBL range?
The JBL SRX828SP is made by JBL Professional, the pro-audio division of JBL, an American loudspeaker manufacturer founded in 1946 and part of Harman International. The SRX range is aimed at audio professionals working in live sound, installations and studios. The SRX828SP is the self-powered subwoofer in that line, designed to pair with full-range speakers such as the SRX835P for a complete system.
What is the SRX828SP commonly paired with in a professional PA system?
The JBL SRX828SP is commonly used alongside full-range self-powered speakers. Used system configurations sometimes include the SRX828SP paired with JBL SRX835P 15-inch three-way bass reflex self-powered speakers, with the subwoofers handling low frequencies and the full-range cabinets covering the mid and high frequencies for a balanced audio system.
What affects the price of a used JBL SRX828SP, and what should I check before buying?
Used SRX828SP pricing varies depending on condition, age, whether units are sold individually or as a matched pair, and what is included in the package. Buyers should verify that the built-in amplifier powers on correctly, that both 18-inch drivers are functional, and that the cabinet shows no structural damage beyond normal cosmetic wear. Listings on this page carry a 21-day warranty covering major functional faults; the buying guide at 10kused.com/used-av-equipment-guide/ covers the full process.








