Simplexx 18 Home Theater Subwoofer Flat Pack

Simplexx 18 Home Theater Subwoofer Flat Pack

Price: USD $179.95
  • Description
  • Specifications
  • Kit Contents
  • Response Graphs


The Simplexx Series by Bill Fitzmaurice are the perfect combination of performance and ease of construction.

These cabinets can be built by anyone, minimal tools required

SpeakerHardware kits make them a painless start for the beginning builder, or the experienced one who needs simple high performing speakers.

  • Simplexx cabs feature braced half-inch plywood construction, for better performance with lighter weight than commercial cabs.
  • All feature corner located ports, for stronger construction with less weight than round or slot ports
  • Corner ports also sound better than round or slot ports, as their placement equalizes air pressure inside the cabinet, preventing cone rock at high levels.
  • These cabs aren’t difficult to build, but they still feature engineering that even ‘boutique’ cabs can’t lay claim to.

Complete details and plans are available from


Simplexx 1 DIY Home Theater Subwoofer Kit

  • Power handling: Driver dependent. See options in drop down box for driver selection
  • Response:  40-18k
  • Dimensions: 22inw x 27.5inh x 22ind
  • Weight: Approx 75-90lbs
    dependent on driver and hardware.

Complete details and plans are available from


Simplexx 18 Home Theater Subwoofer Deluxe Kit Includes:

  • Every nut, bolt, screw and washer to complete your cab.  All hardware and screws are black
  • Choose from 4 styles of Corners, Chevron, or 1824 Metal in black and chrome
  • Gasket Tape
  • 1 tube PL Constuction Adhesive
  • Dish with gasket, includes jacks with screws/bolts and wire connectors, choose your style
  • 4 drivers to choose from.
  • All parts are tested and confirmed by the SpeakerHardware shop to fit a Simplexx.

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