Markertek - The Future of Broadcast Supply

Call 800-522-2025
M-F 8:30am - 7pm EST

Free Shipping Promo Box

FREE SHIPPING No Minimum Order!

SHOP MARKERTEK EVERYDAY for all of your needs. Free shipping on almost every order placed on our website.
Special order & oversized freight intensive items ship at an additional cost. Continental US orders only.
Ask about our new Economy International Shipping Options.

Secure LoginClose X

Returning Markertek Customers

New Markertek Customers

Why Create an Account?

Creating a Markertek account now will save you time on future orders. You'll have full access to your order history and a personalized shopping experience.

JBL STX818S Single 18 Inch Bass Reflex Subwoofer
  • JBL STX818S Single 18 Inch Bass Reflex Subwoofer
  • JBL STX818S Single 18 Inch Bass Reflex Subwoofer
  • JBL STX818S Single 18 Inch Bass Reflex Subwoofer
  • JBL STX818S Single 18 Inch Bass Reflex Subwoofer
Questions? Ask a Markertek Expert:
800-522-2025 Email

JBL STX818S Single 18 Inch Bass Reflex Subwoofer

Manufacturer: JBL Professional

Item #: JBL-STX818S   •   MFG #: STX818S


List Price:$1,499.00
Our Price:$1,199.00

free ship
Availability: Usually ships in 3-10 business days
This item is currently out of stock and will ship the minute we receive it – normally 3-10 business days. Need it sooner? Call 800-522-2025 and we'll make it happen,or email Customer Service for expedited delivery options. Certain Non-Stock Items Valued over $50.00 may Ship FREE UPS GROUND in the Continental US. Multiple quantities of the same non-Stock Item Valued below $50.00 may be ordered to meet the $50 minimum order requirement to qualify for Free UPS Ground Freight. This offer does not apply to certain freight-intensive or hazardous items. Certain restrictions may apply.



    A single 18" compact high power subwoofer system in a front-loaded, vented enclosure designed for minimum frontal area provides 1,000 watts of continuous pink noise power handling, 2 kW program and 4 kW peak. The STX818S also comes equipped with a top-mounted M20 pole-mount and an optional wheel kit.

    • Features

      • 18 in. Super Vented Gap woofer for extended low-frequency output.
      • Large port area for reduced distortion.
      • 20 mm threaded pole socket for solid, secure satellite speaker mounting.
      • Rugged DuraFlex coated enclosures sized to be truck pack friendly.
      • 14-Gauge steel grille lined with acoustically transparent cloth.
    • Specifications

      • Frequency Range ( -10 dB) : 35 Hz-250 Hz
      • Frequency Response (± 3 dB) : 40 Hz-120 Hz
      • Sensitivity (1W/1m) : 96 dB
      • Power Rating (Cont. Pink Noise/Program/Peak) : 1000 W / 2000 W / 4000 W
      • Rated Maximum SPL : 132 dB SPL Peak
      • Nominal Impedance : 8 Ohm
      • Input Connectors : Two NL4
      • Operational Modes : Subwoofer
      • Dimensions (H x W x D) : 558 mm x 568 mm x 718 mm (22.0" x 22.4" x 28.3")

    Add Accessories for your STX818S:



    Continue Shopping View Cart