L-Acoustics SB28 High Power Subwoofer 2x18-Inch

Write a review Q&A SKU: SB28
1 of 5
Available options

Product attributes

    You can get it quickly!

    This isn't something we usually keep in stock, but we can typically get it very quickly from the vendor. Please place your order, and we'll let you know when to expect it.

    Need help? Contact our product specialists.

    View full details

    Need help? Contact our product specialists.


    L-Acoustics SB28 High Power Subwoofer 2x18-Inch

    Passive subwoofer with two high-excursion, direct-radiating 18 in transducers mounted in a bass-reflex tuned enclosure with laminar vents for increased LF efficiency. The enclosure cabinet is constructed of premium grade Baltic beech and birch plywood. The enclosure front is protected by a coated steel grill and an acoustically transparent fabric. The enclosure integrates six ergonomic handles, two stacking runners and matching top tracks for easy enclosure alignment. Integrated rails allow for flown configuration with other loudspeakers of the same family. Combining two or more elements with associated presets achieve omnidirectional or cardioid directivity patterns. Exclusively driven and protected by a proprietary amplified controller through a dedicated preset.


    • Coverage:
      • Enclosure directivity: standard or cardioid
    • Transducers:
      • LF transducer: 2 × 18" neodymium direct-radiating
    • Acoustics:
      • Nominal impedance: 4 Ω
      • Usable bandwidth: 25 Hz - 117 Hz (-10 dB), 30 Hz - 90 Hz (-6 dB), 33 Hz - 70 Hz (-3 dB)
      • RMS power handling (Calculated using the mean impedance measured on the usable bandwidth): 655 W
      • Maximum SPL: 142 dB Peak level at 1 m under half space conditions using pink noise with crest factor 4
    • Physical data:
      • Acoustical load: bass-reflex
      • Cabinet: premium grade Baltic birch plywood
      • Dimensions (W, H, D): 1300 mm, 550 mm, 700 mm / 51.2 in, 21.7 in, 27.6 in
      • Weight (net): 93 kg / 205 lb
      • Connectors: IN: 1 × 4-point speakON
      • Finish: dark grey brown Pantone 426 C


    Write a review


    Questions & Answers

    Ask a question

    You may also like

    • PSSL Customer Support Image

      Ask the experts

      Our expert team guides customers towards the best equipment solutions, ensuring unparalleled performance and customer satisfaction.

      Ask an expert here 
    • Financing Options

      We offer flexible financing options, starting at 0% APR. Our financing plans provide customers with the opportunity to acquire top-quality audio, DJ, and lighting equipment with ease and convenience.

      Explore more financing options 
    • Rewards Program

      Join our Rewards Program today and enjoy the benefits of smart shopping!

      Visit our rewards page