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JBL PRX418S Compact 18" Subwoofer  

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PRX418S is an eighteen inch subwoofer which, when combined with the two-way models, provides a sub/sat system capable of generating 135 dB of full-range, high quality audio. They feature a pole mount ... Click To Read More About This Product


Gear returned in mint condition. If you're looking for a virtually new instrument in possibly less-than-perfect packaging, this is a great value.
  • Includes 45-Day, No-Hassle Returns
  • Includes full manufacturer's warranty
Gear returned in great condition, with only minor signs of use, such as slight scuffs or pick marks. It looks and plays like new and may be considered an equivalent to display units found in retail stores.
  • Includes 45-Day, No-Hassle Returns
  • Includes full manufacturer's warranty
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PRX418S is an eighteen inch subwoofer which, when combined with the two-way models, provides a sub/sat system capable of generating 135 dB of full-range, high quality audio. They feature a pole mount flange for a full range speaker, recessed handles for easy transport, and most importantly, a rich, thundering sound.

PRX400 passive speakers were designed to provide the sensitivity, frequency response and power handling needed for almost any professional audio environment while still being reasonably priced. Whether you use a powered mixer or an equipment rack full of amps and signal processing, PRX400 passive speakers deliver the sound power and bandwidth necessary to make loud music sound natural and even quiet speech intelligible.

PRX400 passive speakers are made of tour-tested JBL components and feature professional connectivity via Neutrik Speakon combination connectors. PRX400 cabinets are artfully constructed from an 18mm Birch/Poplar multi-laminate hardwood covered in highly resilient DuraFlexTM and feature rugged 16 gauge steel grilles.

  • High handling capacity
  • Deep frequency response
  • Rugged construction
  • Resistant to scuffs and scratches
  • Frequency Range: 35 Hz - 250 Hz
    Frequency Response: 52 Hz - 120 Hz
    System Sensitivity: 95 dB SPL (1w@1m)
    Power Rating, Pink Noise: 800 W / 1600 W / 3200 W
    Rated Maximum SPL: 130 dB SPL peak
    Nominal Impedance: 8 ohms
    Dimensions (W x H x D): 21.1" x 26.7" x 24.2"
    Net Weight: 79lb

Pro Coverage gives you added warranty protection for your new gear. Stepping in where the manufacturer's "normal wear and tear" coverage ends, our Pro Coverage program offers you upgraded coverage if your product ever fails Read More.

Pro Coverage includes
  • Accidental damage protection (new gear only)
  • Expedited repair
  • Free shipping (for returns or repairs)
  • 100% coverage for commercial use
  • Extended return period
  • Extended price protection
  • No lemon guarantee
  • Free transfer of coverage to a new owner
  • Repair costs covered for up to three years from date of purchase
  • Repair authorization-toll-free by phone or via the web
  • Customer Reviews

Review Snapshot

by PowerReviews
JBLPRX418S Compact 18" Subwoofer

(based on 3 reviews)

Ratings Distribution

  • 5 Stars



  • 4 Stars



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  • 2 Stars



  • 1 Stars



Reviewed by 3 customers

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(3 of 4 customers found this review helpful)


Great low end...

By mike mcgaha

from New Orleans, La.

Comments about JBL PRX418S Compact 18" Subwoofer:

I am running a pair of these powered with a bridged Crown ce4000...I have had them for 2 months and am still impressed every time I hook them up. They replaced an older pair of Peavey sp118's and are more robust and puchier than the peaveys and weigh 50lbs. less a piece. I can carry these by myself and put them in my vehicle. The Jbl poles that you will need to mount tops on are overpriced but are truly rock solid and easy to adjust. These subs with the prx 412's on sticks sound great and do a nice job in medium size rooms and clubs. JBL quality all over in the build...everything fits just right.

(1 of 1 customers found this review helpful)


Bad out of the box

By rick

from Glendale, AZ

See all my reviews

Verified Buyer


  • Attractive Design


    Best Uses

    • Basic Systems

    Comments about JBL PRX418S Compact 18" Subwoofer:

    Unit had a bad speaker right out of the box. Had to have a local authorized repair service rebuild the speaker. Thanks JBL! Don't know if GC put bad unit back in circulation but it makes me wonder how things like this happen. Very disappointed in these large companies that we put our trust in and spend our hard earned money on. Qaulity control seems to be at an all time low these days!

    • Was this a gift?:
    • No

    More bang for your buck

    By AL Bassman

    from Oregon

    About Me Pro Audio / DJ, Tech Savvy

    Verified Buyer


    • Easy To Set Up
    • Good Power Output
    • Great Sound Quality
    • Great Thump
    • Sleek look


    • Had To Add Wheels

    Best Uses

    • Any Large Club
    • Basic Systems
    • Great outdoors
    • Outdoors

    Comments about JBL PRX418S Compact 18" Subwoofer:

    These of course are going to be great because they are JBL's. But our band was not ready for the clarity and thump these put out when our sound tech plugged them in. They made the cement rattle. These coupled with the JRX 2 x 15" mains will support any indoor or outdoor venue that we play.

    • Was this a gift?:
    • No

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