Sound reproduction apparatus

Claim 1

A SPEAKER SYSTEM FOR INCREASING THE LOW FREQUENCY RESPONSE AND IMPROVING STEREROPHONIC SOUND REPRODUCTION, INCLUDING IN COMBINATION, A CABINET HAVING A BAFFLE PANEL AT THE FRONT THEREOF, SAID BAFFLE PANEL HAVING A SPEAKER OPENING THEREIN, A FLOW FREQUENCY SPEAKER DISPOSED ADJACENT SAID BAFFLE PANEL TO EMIT SOUND THROUGH SAID OPENING THEREOF, A HIGH FREQUENCY SPEAKER DISPOSED AT EACH SIDE OF SAID LOW FREQUENCY SPEAKER FOR REPRODUCING STEREOPHONIC SOUND, SAID CABINET HAVING AN APERTURED BACK PANEL TO PERMIT FREE OPERATION OF SAID LOW FREQUENCY SPEAKER, A SOLID COMPRESSION PANEL HAVING TOP, BOTTOM AND SIDE EDGES AND DISPOSED IN SPACED RELATION FROM SAID BAFFLE PANEL AND IN ALIGNMENT WITH SAID LOW FREQUENCY SPEAKER, MEANS EXTENDING ALONG THE ENTIRE TOP EDGE OF SAID PANEL TO SECURE THE SAME WITH RESPECT TO SAID BAFFLE MEANS, FURTHER MEANS EXTENDING ALONG THE BOTTOM EDGE OF SAID COMPRESSION PANEL TO SECURE THE SAME WITH RESPECT TO SAID BAFFLE MEANS, A PORTION OF SAID CABINET EXTENDING IN SPACED RELATION ALONG THE SIDE EDGES OF SAID COMPRESSION PANEL AND SPACED THEREFROM A DISTANCE LESS THAN THE SPACING BETWEEN SAID COMPRESSION PANEL AND SAID BAFFLE PANEL TO DEFINE SOUND PASSAGE, THE SPACING BETWEEN SAID BAFFLE PANEL AND SAID COMPRESSION PANEL ENCLOSING A VOLUME OF AIR TO DEFINE A COMPRESSION CHAMBER, THE COMPRESSION CHAMBER AND THE SOUND PASSAGES PROVIDING AN EFFECTIVE LOADING OF SAID LOW FREQUENCY SPEAKER TO INCREASE THE LOW FREQUENCY RESPONSE