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ABSTRACT
The primary pursuit of this project was to determine the response of a manufactured sub frequency amplification loudspeaker system capable of amplifying frequencies between 45 Hz through 125 Hz. Secondly, a 2000 W class AB power amplifier was also designed and manufactured to specifically power this loudspeaker design. Finally, using transfer function measurements, the critical identification and analysis of the character of the output wave forms in diverse listening spaces was done. This project was carried out using a low frequency transducer/driver of size 18 inches, made of ferrite permanent magnet, a copper voice coil of 4-inches, and a diaphragm made of sturdy paper film. This driver/transducer is tightly suspended within a casket which comprises of a robust acoustic (wooden) compartment made of birch plywood of thickness 4 millimeters(4mm), with an internal rigid structure, critically designed in a front-loaded configuration for maximum acoustic power output within which the transducer is immersed/suspended and made to resonate.
