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Quality that matches THD amps.

The THD 2-12 Extension Cabinet is the key to the magic between your fingers and your ears. Delivering a sound that is deep, smooth, clear, focused, and sweet, this cabinet truly is a vital element for improving the tone chain.

The Ported Extension Cab is a bass-reflex design cabinet with a slot-port in the rear instead of the more common tube port in the front. Unlike a tube-port, there is no chance of “whistling” through the slot-port in THD’s cabinets. The slot-port being shallow, but wide, gives a lot of rear projection and a more open, 3-D sound similar to an open back cab, with a dramatically fuller, tighter bottom end.

THD’s cabinets are constructed from 3/4″ 9-ply birch with 1/2″ birch ply baffle and rear panels. The corners are finger jointed for strength and rigidity and the speaker baffle is dadoed into the sides to make a remarkably strong and durable cabinet. To eliminate noise found in other handles, THD uses steel inset handles that are remarkably strong and do not rattle. Other components of the cabinet such as Switchcraft jacks are utilized because they provide a better connection to your speaker plug and steel jack dishes because they cannot break or push through.

Inside, the speakers are wired with Belden wire, an industry standard that is very high quality, sounds great, and lasts a lifetime. Also featured on the cabinet’s exterior are nickel-plated steel corners to deflect blows and large cast rubber feet that serve to reduce vibrations.

THD has designed a full sounding, lightweight 2×12 speaker cabinet that can rival a 4×12 in volume, power, and projection. It has a tight, clean, focused sound that’s not the least bit harsh, brash, or tubby.

From an amazing vintage shimmer, to a tight modern sound, the THD 2-12 Extension Speaker Cabinet can offer you the elusive tone you’ve been searching for.

Check the drop-down menu to the right to select colors and/or other options.


  • Bass-reflex design
  • Rear ported
  • Custom design 12″ speakers
  • Constructed from 3/4″ 9-ply birch with 1/2″ birch ply baffle and rear panels
  • Finger joint and dadoed assembly
  • Inset handles
  • Switchcraft jacks
  • Nickel-plated steel corners
  • Compact and light

The finest quality from top to bottom and great sound. Order today.


2×12 Ported Extension Cabinet

  • 26-1/2″ x 18″ x 11″
  • 45 lbs.

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