Loudspeaker cabinet for HI=FI sound reproduction - has exponential horn with elbow section located at rear of bass loudspeaker for rear loading

摘要

A bass loudspeaker is loaded at the rear by a chamber whose base has an opening leading onto an exponential horn in three sections. The first part is directed downwards while the second part is directed upwards and is defined by the side and rear walls. An inclined wall, forming a corner section with a wall at the rear of the speaker and filled with glass wool, forms the inner wall. The third section is an extension to the second section but has an inner wall at a larger angle to form the mouth. The medium frequency loudspeaker is loaded at the rear by a chamber which communicates with the corner section. The tweeter has a closed compression chamber at the rear and is contained in the medium frequency speaker chamber.