The new THD 1-12" combo is a tuned-port bass-reflex cabinet like the THD 2-12". The 1-12" has a number of features that substantially reduce standing-waves inside the cabinet, giving it a very deep, even, tight and punchy sound. You won't believe that you are listening to only a single 12" speaker. The 1-12" combo cabinet is designed to sound as full and tight as a THD 2-12" cabinet. It uses a single THD Vintage 12".

The entire line of THD amplifier heads (including the soon-to-be-released Deco-36) are available as 1-12" combos.