MDレシーバー — The Alpine MDA-7755JS is a compact single-DIN head unit from Alpine's MiniDisc era, built for owners who wanted MD's skip-proof, re-recordable convenience without giving up a built-in tuner and amplifier. Under the hood it's a proper 44W x 4 deck with independent bass and treble shelving, paired with an MD transport rated for a genuinely hi-fi 90dB signal-to-noise ratio and dynamic range. A real period-correct way to run MiniDisc from the dash. Amplifier has been tested successfully. MD has not been tested. Harness Included. MDA-7755JS — KEY FEATURES Media MiniDisc (MD) playback Tuner AM 522–1,629kHz / FM 76.0–90.0MHz (JDM band) Power Max output 44W x 4, DC 14.4V (operating range 11–16V), negative ground Sound Bass ±15dB (30Hz), Treble ±10dB (10kHz) MD spec Frequency response 20Hz–20kHz (±0.5dB), S/N 90dB and dynamic range 90dB (1kHz), wow & flutter below measurable limits Form factor Single DIN — 178 x 50 x 155mm / approx. 1.5kg
