Primarily the cabinet is a convenient way of housing the speaker so it should be solidly built to ensure no joint vibration unpleasant buzzing and be strong.
Build your own 4x12 guitar cabinet.
Draw circles for the speakers on the front panel of the cabinet with a compass or large protractor.
Cut two pieces to 14 by 30 inches for the top bottom and two pieces 14 by 28 for the two sides of the cabinet.
April 3 2014 this handbook covers all the major kinds of cab types you re likely to want to try and build from horn loaded subwoofers to 4x12 guitar cabs along with advice on dimensions fixings materials and.
Cut two pieces of plywood or mdf to 28 inches by 28 inches for the front and back of the 4x12 cabinet.