McIntosh MC2505 Solid State Power Amplifier (1970-75) The McIntosh MC2505 is a vintage solid-state power amplifier known for its reliability and exceptional sound quality. Designed between 1970-1975, this amplifier provides a maximum power output of 100 watts RMS continuous, delivering 50 watts per channel simultaneously into 4Ω, 8Ω, or 16Ω loads. The MC2505 is ideal for audiophiles seeking warm, powerful sound with a vintage touch, featuring minimal harmonic distortion of less than 0.25% from 20Hz to 20,000Hz. Known for its robust design and clean performance, the MC2505 offers a frequency range at rated output on both channels of +0, 0.025dB, ensuring accurate and rich sound reproduction. This amplifier is highly sought after for vintage home audio systems, combining power, clarity, and durability. Service and Condition This unit has undergone a full service by our in-house technicians. It has been cleaned with Deoxit, lubricated, and all controls, switches, and internal connections have been maintained for optimal operation. The amplifier has been bench tested to ensure reliable performance. Cosmetically, it shows light/normal wear for its vintage, with clean glass and fully legible text. While there is slight discoloration around the headphone jack, the unit’s original lights have been replaced and are fully functional. Overall, this McIntosh MC2505 is a fantastic piece for any audiophile collection. Inspect the photos above for further details. Technical Specifications Specification Details Power Output 50 watts per channel into 8Ω (stereo) Frequency Response 20Hz to 20kHz Total Harmonic Distortion 0.25% Damping Factor 10 Input Sensitivity 0.5V Signal to Noise Ratio 90dB Speaker Load Impedance 4Ω to 16Ω Interested in vintage McIntosh amplifiers? Visit our storefront in Richmond, Virginia, or explore our custom home theater installation services for the best audio experience.
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