Marantz PM420 - Hi-Fi Amplifiers - Excellent
- Location
- AU
- Source
- Reverb
- Posted
- 2d ago
- Last seen
- 3h ago
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RADAR is a price search engine. We link to the original listing — we never sell direct. Transactions happen on the source site.
Marantz PM420 - Hi-Fi Amplifiers - Excellent
Why This One
Excellent condition — light signs of use, no obvious issues
Fully tested — all applicable functions verified working
40W per channel, 0.05% THD — clean, capable 1980s Marantz engineering.
A cost-effective entry into classic Japanese integrated amplifier performance.
Condition: Excellent
This Marantz PM420 is an excellent-condition Hi-Fi amplifier. It has passed our 14-point functional test, with 2 item(s) not applicable to this unit. Please review all photos carefully, as they provide an accurate representation of the cosmetic condition of the product.
What's Included
Marantz PM420
No additional accessories included
About This Model
The Marantz PM420 is a stereo integrated amplifier from 1982, delivering 40 watts per channel into 8Ω with a minimum speaker load impedance of 4Ω. It features a built-in MM phono stage alongside line-level inputs, making it a versatile single-box solution for both turntable and source-based systems. Total harmonic distortion is rated at just 0.05%, with a frequency response spanning 10Hz to 30kHz and a signal-to-noise ratio of 90dB on line inputs — figures that reflect Marantz's commitment to clean, accurate amplification in this era. A damping factor of 50 provides solid control over speaker drivers, contributing to the composed, well-defined sound character these late-Marantz Japanese-era integrateds are known for.
A great opportunity to own a Marantz PM420 at this price point.
Generating expert take…
Marantz originated in the United States, founded in 1953 by Saul Bernard Marantz, a music enthusiast and amateur musician born in Brooklyn in 1911. Dissatisfied with the audio equipment of the era, he crafted the groundbreaking Audio Consolette preamplifier in 1952 from his New York home, selling the first 100 units rapidly and prompting the formal establishment of the company in Woodside, Queens. Though production later shifted to Japan in partnership with manufacturers like Standard Radio in 1966, and the brand evolved through ownership changes including Superscope and eventual integration into larger groups, its heritage remains rooted in American ingenuity and a relentless pursuit of musical fidelity.
The brand excels in high-end audio components, particularly amplifiers, preamplifiers, and integrated systems that defined its golden era. Iconic models like the Model 7 preamplifier (1958), Model 9 power amplifier (1960), and Model 10B tuner (1964) set benchmarks for performance, while later offerings expanded to tuners, receivers, and CD players. Marantz briefly ventured into speakers under designer Ed May in the 1970s but focused primarily on electronics rather than turntables, headphones, DACs, or cables, emphasizing separates renowned for their "Most Musical Sound."
Marantz commands a premium position in the hi-fi market, revered as a high-end pioneer that shaped the audiophile landscape through the 1970s zenith. Today, it blends vintage allure with modern elegance, appealing to discerning buyers who value durability, innovation, and warm, detailed sound signatures over mass-market accessibility.
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