Marantz MODEL 24 (1973-1975)

Specifications

Feature	Specification
Year of Production	1973-1975
Power Specifications	120W per channel (8Ω), stereo
Impedance	4-16Ω
Sensitivity	Unknown
Key Features	Dual power supplies, FET front end, dual-gate MOSFETs in FM tuner, pre-out/main-in jacks, wood cabinet, tuning meter, loudness contour, high/low filters

Historical Significance

When Marantz rolled out the Model 24 in 1973, it wasn’t just another receiver—it was a statement. Sitting proudly at the top of Marantz’s lineup during their golden era, the Model 24 captured the last gasp of integrated amplifier supremacy before audiophiles fully embraced separates. Built like a tank and engineered with obsessive attention to detail, it delivered performance that still turns heads today. Its FM tuner, powered by dual-gate MOSFETs, was a revelation in clarity and sensitivity, while the dual power supplies ensured clean, stable power across the board. This was high fidelity with muscle, sophistication, and soul.

Sound Signature

The Model 24 sings with a rich, warm tone that never sacrifices detail. Highs are smooth and natural, never harsh or fatiguing, while the bass remains tight, deep, and remarkably controlled for its era. Imaging is precise—musicians take their places on a wide, stable soundstage, creating a listening experience that feels alive. Whether you're spinning vinyl or tuning into FM, the presentation is consistently musical, immersive, and deeply satisfying. It’s the kind of sound that pulls you in and makes you forget the equipment.

Maintenance and Restoration Tips

After 50 years, these beasts need love. Electrolytic capacitors are likely dried out—replacing them is almost mandatory for safe operation. Pots and switches collect grime over decades; a careful cleaning restores smooth operation and eliminates crackles. The tuning meter bulb often burns out, so keep a spare. Watch for sticky relays, especially in the speaker protection circuit, and inspect the thermal protection system—these safeguards kept the Model 24 reliable in its day, but age takes its toll. A full recapping and service can bring one back to factory glory, and the results are worth the effort.