Electronic audio signal amplifier and loudspeaker system

Details Electronic audio signal amplifier and loudspeaker system Electronic audio signal amplifier and loudspeaker system

1989-01-06

1992-07-07

Isen, Forester W.

Electrical audio signal processing systems and devices

Including frequency control

Having crossover filter

H03G 500

Patent

active

051290065

ABSTRACT:
An electronic audio signal amplifier and loudspeaker system comprises a preamplifier circuit, a plurality of L electronic crossover networks, a plurality of M output amplifiers and an associated plurality of M loudspeaker assemblies. The electronic crossover networks conjugate an input signal into at least low, mid and high frequency bands which do not overlap for broadcast form at least three loudspeaker assemblies particularly designed for such broadcast and for alleviation of intermodulation distortion. The system delivers an omnidirectional sound at equivalent acoustic energy to listeners over the entire audible spectrum with limited intermodulation distortion. A center channel loudspeaker assembly of the system comprises first and second ported chambers, the second chamber being filled with a sound-absorbent material to attenuate acoustic energy at certain frequencies broadcast from a woofer of the assembly.

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