Marantz LS-80 (1970s)
The Marantz LS-80 shows up in restoration forums and Japanese auction listings more often than it shows up in the history books. Surviving information is thin and partly contradictory. What emerges is a serious, heavy floor-standing speaker from Marantz's first push into high-end speaker design in the 1970s.
The LS-80 was the top floor-standing model in that initial range. It sat above the smaller LS-60 and below the LS-90, which shared the same woofer but added a mid-bass driver. It was a 3-way bass-reflex design with a 12-inch cone woofer, a horn-loaded dome midrange and a horn-type tweeter, crossed over at 700 Hz and 8 kHz. The cabinet was heavily damped with a thick baffle. The system was bi-wire capable via 5-way binding posts. The Japanese list price was ¥165,000 per pair.
There are conflicting claims in the record — one source gives the woofer as 38 cm rather than 12 inches, and frequency response is variously listed as 40 Hz–20 kHz or 30 Hz–20 kHz. Power handling is quoted at 80 W continuous program in one place and up to 150 W in another. Rather than guess, it's worth noting the disagreement: the 38 cm woofer figure may belong to a later variant (perhaps an LS-80B), but the sources conflate them. The 12-inch version measured 400 x 690 x 350 mm and weighed 24 kg per unit.
Owners and restorers consistently agree on build quality. The LS-80 was built to compete with the Yamaha NS-1000M and JBL L100, though some sources dispute that and position it against larger floor-standers like the JBL L300. One restorer described it as far better built than typical Japanese speakers of the era, able to play very loud without strain on the midrange. He also noted the midrange and tweeter are coherent, and smoother than the Yamaha NS-1000's beryllium dome. The same source recommended them as studio monitors for classical and jazz. The criticisms are just as specific. Bass can be muddy, with the bottom end rolling off sooner than the cabinet size suggests, and the highs are veiled compared with modern ribbon tweeters.
The usual vintage speaker problems apply here, with a few model-specific quirks. The woofer foam surrounds rot and crumble — refoaming is the standard first step. The internal damping foam disintegrates into dust and should be replaced. And the crossover uses light-bulb fuses for protection that burn out with age, which cuts off the horn midrange entirely. No factory spare parts are available from Marantz; owners use generic foam kits. There is little collector value in Japan, where the LS-80 is overshadowed by JBL and Yamaha, but for someone who wants a well-built, genuinely musical Japanese floor-stander from the 1970s at a reasonable price, it remains an interesting option.
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