The Sanyo SX-635 is a speaker model produced by Sanyo between 1978 and 1980 in Japan. This speaker features a classic walnut and matte gray finish. With dimensions of 280 x 480 x 240 mm and a weight of approximately 8 kg, it is designed as a bookshelf speaker. The SX-635 utilizes a three-way speaker configuration, composed of a 250 mm woofer, a 100 mm midrange driver, and a 50 mm tweeter. Its rated power handling is 30 watts, with a maximum music power handling of 40 watts. The speaker has an efficiency rating that allows it to produce frequencies ranging from 40 Hz to 20 kHz, with crossover frequencies set at 800 Hz for the midrange and 5,000 Hz for the high frequencies. The nominal impedance of the SX-635 is 4 ohms, and it features removable front covers. This model is part of a series that includes various other Sanyo models such as the SX-160, SX-170, and others.
