HD 181 Sub

The Solton HD 181 Sub is a single 18" direct-radiating high performance subwoofer system.

It has been designed to add high-output, high-impact bass response to the mid-high and fullrange loudspeaker system in various mobile and installed applications.

The HD 181 Sub features a long-excursion, 18” ,4” (100mm) voice coil LF transducer, and a low distortion port design in a compact reflex enclosure made of 15 mm plywood.

The integrated pole mount socket (M20) enables the use of a distance rod in combination with a MF/HF cabinet as a system.

Two speakon connectors (NL4) are mounted at the rear side of the enclosure for signal input (input) and signal link (PARALLEL).

Key Features

  • Bullet point 1 x 18” ,4” (100mm) voice coil LF Transducer
  • Bullet point 135 dB Peak SPL
  • Bullet point Passive subwoofer operation
  • Bullet point Compact design
  • Bullet point Pole mount socket (M20)
  • Bullet point Two Integrated Handles for Easy Portability
  • Bullet point Prepared for 100mm blue wheels


  • Article Nr.
  • Loudspeaker Type
    Single18", bass-reflex, subwoofer
  • Frequency Range (-10dB)
    33 Hz – 250 Hz
  • Frequency Response (+- 3dB)
    38 Hz – 140 Hz
  • Coverage Pattern
  • Power Handling
    800 W continuous, 3200 W peak
  • System Sensitivity (1w/1m)
    100 dB
  • Maximum SPL (Calculated at 1m)
    129 dB continuous, 135 dB peak
  • LF Driver
    18", 4" voice coil speaker
  • Nominal Impedance
    8 ohms
  • Crossover
    active by DSP
  • Enclosure
    15 mm birch plywood
  • Finish
    Black textured paint
  • Fittings
    2x Handles, M20 pole socket
  • Protective Grille
    Black perforated steel with acoustic transparent foam backing
  • Connectors
    2x NL4, Pins 1+/1-
  • Dimensions mm (WxHxD)
    600 x 660 x 640
  • Weight
    43 kg


  • Bullet point Portable sound reinforcement
  • Bullet point Installation
  • Bullet point Live Music
  • Bullet point Bars and restaurants
  • Bullet point Nightclubs

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If you need more informations about this product please contact us. We will find for you our nearest partner next to you.

Your SOLTON Team