RADAR is a price search engine. We link to the original listing — we never sell direct. Transactions happen on the source site.
Nice Marantz Model 140 hifi power amp with meters all lamps work. Amp plays well however rarely one channel clip light illuminates and the ch interrupts playback. We obtained a rebuild kit (included)with all small signal transistors/diodes/capacitors for both channels with instructions. Don't have time to install. Please enjoy a weekend project or have a professional install the kit.
This US$650 asking price is a strong deal, sitting just above the 25th percentile of US$625 and well below the median of US$999 for the Marantz Model 6-G speakers. While some external listings show pairs for around US$200, the GROUND TRUTH from your database anchors the realistic market much higher, making this a genuine bargain for a pair in unknown condition.
The Marantz Imperial 6-G bookshelf speakers are well-regarded vintage units from around 1972 that deliver warm, balanced sound with classic midrange clarity. At this price, the upside is significant: you’re acquiring a rare, original-owner pair of a respected brand at a fraction of the typical market value. Unless the condition is visibly damaged or missing critical parts, this listing represents a clear buying opportunity for a fellow enthusiast looking to add authentic vintage character to their setup.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
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.
See all Marantz listings on RADAR.
