SONY TA-F5 & Pioneer CS-E700

CORAL X-III ¥ 30,000 (1 unit, released in 1982) vs Pioneer CS-E700 ¥ 38,500 (1 unit, around 1973) ¥ 41,800 (1 unit, around 1974). SONY TA-F5 ¥ 59,800 (released in 1977) vs LUXMAN SQ507X ¥ 86,500 (released in August 1971).