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DE-X 300 SUB

Trimless In-Wall / In-Ceiling Subwoofer

Key Features
  • Very unobtrusive appearance
    (only the flush-mounted front grille is visible)

  • In-wall/ in-ceiling subwoofer

  • Small dimensions and installation depth

  • 2 × 6.25" long excursion driver

  • Moisture proof

  • 240 watts power capacity, 4 ohms

Fields of Application
  • Gastronomy, hotels
  • Home audio
  • Conference rooms
  • Media rooms
  • Surround systems

Trimless, compact in-ceiling subwoofer for wall and ceiling installation. The DE-X 300 SUB is designed to be installed with our EG-X 300 and EGB-X 300 back boxes. This compact model has a linear frequency range of between 40 Hz and 250 Hz thanks to its precise balance and integrated low-pass filter. Because it is integrated into an enclosed back box (EG-X 300 or EGB-X 300), rearward generated sound and ceiling vibration are kept to a minimum. The DE-X 300 SUB is used to enhance low-frequency characteristics in in-ceiling sound systems or as a subwoofer in surround systems in conjunction with our PA 2100 SD compact amplifier.

The DE-X 300 SUB comprises three parts (assembly frame, speaker insert with internal crossover and front grille) and is installed from the front through the installation opening.

Technical Data

Subwoofer with internal low-pass filter. For use with back box (EG 300 or EGB 300)


2 × 6.5" woofer long excursion driver

Frequency range
40 Hz – 250 Hz
Power capacity
120 watts RMS, 240 watts program

83 dB SPL (1 W @ 1 m),
half-space (flush-mounted)

Maximum SPL

107 dB @ 1 m

Nominal dispersion
180 °
Front grille

Precision steel grille with magnetic fastening, adjustable for flush-mounting

Dimensions of front grille
336 × 170 mm
Cutout size

342 × 176 mm

Wall / ceiling thickness
6 – 30 mm
Installation depth
100 mm
3.8 kg
Screw-type terminals, pluggable
5 years
Datasheet (PDF)

DE-X 300 SUB White

RAL 9016

Other colours and versions on request

EG-X 300

Back box

Dim.: 500 × 350 × 140 mm

EGB-X 300

Back box for concrete

Dim.: 500 × 350 × 168 mm (incl. PVC rigid foam)

DE-X Tool

Magnetic holder for effortless insertion and removal of DE-X grille