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About the MAC-4100
The McIntosh MAC-4100 is a classic stereo receiver produced from 1978 to 1985, known for its robust build quality, elegant design, and superior sound performance. It features a solid-state Class AB amplifier delivering 75 watts per channel into 8 ohms stereo, with a frequency response of 20Hz to 20kHz and total harmonic distortion under 0.05%. The receiver includes a built-in AM/FM tuner, phono inputs, and multiple auxiliary inputs, making it versatile for various audio sources. It incorporates a five-band program equalizer for flexible sound shaping, LED power output indicators, and a Power Guard circuit that protects speakers by dynamically controlling amplification to prevent distortion and clipping. The volume control is a precision stepped attenuator ensuring accurate left-right channel tracking. Electronic audio signal switching uses FET analog switches to eliminate clicks and pops. The unit has a satin silver front panel with a walnut grained vinyl cabinet, measuring 473 x 165 x 394 mm and weighing 19 kg. It is highly regarded for its clear, dynamic sound and reliability, making it a sought-after piece for audiophiles and collectors.
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