The McIntosh MX110 is a highly sought-after, golden-era vacuum tube tuner-preamplifier produced between 1962 and 1969. It combines a warm tube preamp—featuring two phono inputs—with an FM stereo tuner and a unique tube-driven “electron ray” tuning indicator.
The McIntosh MC75 is a legendary 75-watt monoblock vacuum tube power amplifier highly regarded for its classic aesthetics, punchy dynamics, and exceptional soundstage depth. First manufactured by McIntosh Laboratory from 1961 to 1970, it has been reissued over the years—including a 60th Anniversary edition (2009–2012) and a modern production run (2014–2018)—to deliver vintage performance standards tailored for modern high-fidelity systems
Key Specifications & Features
Production Years: 1962 – 1969 (Original MSRP: $399).
Inputs: Auxiliary, Tape, and two Phono inputs.
Controls: Independent bass and treble for left and right channels, loudness, high/low filters, and a mode selector for stereo/mono.
Variations: There are three distinct hardware versions: the initial M series, a brief X series, and the final Z series. The Z series featured updated endcaps and upgraded balance controls over earlier models.
Key Technical Specifications
Power Output: 75 Watts minimum sine wave continuous into 2, 4, or 8 Ohms.
Circuit Design: Features the patented McIntosh Unity Coupled Circuit, drawing power from both the cathode and the plate of the output tubes for low distortion and extended frequency response.
Vacuum Tube Complement: Two KT88 (or 6550) output tubes alongside 12AX7, 12AU7, 12BH7, and 12AT7/12AZ7 signal tubes.
Total Harmonic Distortion (THD): 0.5% maximum harmonic distortion at full power.
Signal-to-Noise Ratio: 110dB below rated output on newer reissues (vastly improved from the 90dB spec of the 1960s original).
