Pioneer AM/FM stereo receiver model SX-980. The SX-980 was introduced in 1978 and manufactured through 1979, the last year for the 900 series in Pioneer's line of receivers. Features, separate bass and treble controls with turnover switches from 200hz and 400hz bass, 5k and 25k treble, also tone on/off, filters 15hz and 8khz switches, FM muting, two tape in/outputs, duplicate switch, two phono inputs and one aux input, phono two selector is also the mic selector, mode stereo and mono, loudness on/off, mic input and muting switch, both Signal and tuning meters, also both right and left channel output meters, which shows how much the stereo is putting out. The SX-980 was basically a subtle restyling of the SX-950 with a switch to black meter faces for better legibility, as was done with the other receivers in the late 1970s.