Marantz LS520 (1982)

Documentation on the Marantz LS520 is thin. What survives comes almost entirely from a single Japanese audio database entry. The record shows a floor-standing, 2-way speaker system released in 1982 at ¥30,000 per unit. It used a 25 cm cone woofer with a 25 cm passive radiator for the low end, and a 2.5 cm dome tweeter for the highs. Marantz called this configuration its SBRS method. Rated frequency response was 35 Hz to 20 kHz, impedance 8 Ω, maximum input 60W, and output sound pressure level 88 dB/W/m. The cabinet measured 340 × 815 × 325 mm (W×H×D) and weighed 12.2 kg.

Beyond those specifications, almost nothing is recorded. No crossover frequency, cabinet material, or production end year is documented, and no period reviews or owner impressions have surfaced in the research. The LS520 should not be confused with the LS520MX, a bundled mini component system that appears in auction listings. Those listings belong to a different product. The LS520 itself appears to have been a modest, reasonably specified floor-stander from Marantz's early-1980s Japanese lineup.

Known specifications: