The idea of a loudspeaker system whose frequency response could be tailored to suit room acoustics and/or personal taste is one that has always appealed to the high-fidelity perfectionist. Ideally, such a loudspeaker would allow you to raise or lower the level of any part of the audio spectrum to correct for, say, a sharp 370Hz room resonance or a mild absorptive condition that weakens, say, the 800Hz3kHz range. Obviously, though, this kind of flexibility would require an infinite number of bandpass networks, each with its own volume controlwhich is an obvious impracticality.
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