Tuba 45 Subwoofer Kit

Price: USD $148.95
  • Description

Tuba 45 12" DIY Folded Horn Subwoofers

by Bill Fitzmaurice Designs

When it comes to earth-shaking gut-wrenching low-down bass there's
no substitute for a folded horn.

Tuba Subs take advantage of proprietary folding topology to squeeze
the most performance possible from small woofers, and that translates
into huge bass from small cabinets,with high efficiency

  • The T45 is an oblong version of the T30.
  • The design is ‘end firing’, so it may be placed laid down, or stood up on end where floor space is tight


Tuba 45 Subwoofer DIY Speaker Kit

  • Dimensions: 13-24w x24d x45h
  • Weight: Approx 65-80lbs, dependent on driver, width, and hardware

Complete details and plans are available from

Kit Contents

Tuba 45 Deluxe Kit Includes:

  • Every nut, bolt, screw and washer to complete your cab.  All hardware and screws are black
  • Gasket Tape
  • 8 Chevron or Metal Corners
  • 2 tubes PL Constuction Adhesive
  • Dish with gasket, includes jacks with screws/bolts and wire connectors, choose your style
  • 6 Drivers to choose from
  • All parts are tested and confirmed by the SpeakerHardware shop to fit a Tuba

Response Graphs

Tuba 45 24" wide Lab 12


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Shipping & Inventory Update

Shipping will be closed from Dec 22 through Jan 8th.  Happy Holidays!

Please email about any order that includes drivers for availability. 

 Business is booming, and flat pack and shop built orders are once again stretching lead times. Plywood availability is becoming an issue.

Expect at a minimum of 4 weeks for any shop built order.  6-8 weeks for custom flatpacks.  We are not accepting custom built cabs at this time, only flatpacks and fEARful/ Fearless bass cabs.