The Marantz HD 660 is a 3-way bass reflex, floorstanding loudspeaker model that was manufactured between 1984 and 1985. It features a dark brown finish and has dimensions of 650 x 350 x 270 mm (height x width x depth). The speaker system is designed to deliver quality audio performance with a sensitivity of 90 dB, making it efficient in power usage. The frequency response ranges from 40 Hz to 20,000 Hz, ensuring a wide audio spectrum. It is equipped with a 250 mm cone woofer for low-frequency sounds, a 120 mm cone midrange driver for mid-range frequencies, and a 50 mm cone tweeter for high frequencies. The power handling capacity is rated at 60 W nominal and 120 W music power handling, while maintaining an impedance of 8 ohms, which is standard for home audio systems. As part of a series that also includes models such as the HD 160, HD 260, HD 360, HD 460, and HD 760, the HD 660 stands out for its design and sound quality.
