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Equalizers Mixers and Filters
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achieve acoustic feedback acoustic howl actual amplitude attenuation audience audio system background noise basic bass capacitor cardioid Chapter circuit component compression Conax connected constant-voltage CONTROL VOLTAGE crossover crossover frequency curves cut-off db/octave designed direct distortion dynamic range effect efficiency electrical electronic emitter equalization feed feedback filter frequency range frequency response high fidelity high-impedance horn impedance input insertion gain installation L-shaped room lifier load loud loudspeaker magnet maximum means micro microphone mike millibar mixer octave ohms operate output voltage overall peak pedance phase-shift oscillator phonograph pickup playback pre-emphasis preamplifier problem public address quency rated reactance recording reduced relative reproduced resistance resistor reverberation roll-off sensitivity signal simple sistor slope sound square wave stage stereo studio switch tape terminated tone transformer transistor turnover twin-T units voice volts watts waveform