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Alpine MDA-7751J MiniDisc MD Receiver Head Unit

Overview

Up for sale is a rare JDM Alpine MDA-7751J single-DIN MiniDisc (MD) car stereo receiver. Renowned for its classic late-90s vintage Alpine design, tactile physical controls, and high-end audio engineering, this unit features Alpine's signature Digital Harmonics Enhancer (DHE), dedicated Subwoofer Level Control, and Ai-NET expansion capability. A sought-after piece for vintage audio collectors and retro Japanese Domestic Market (JDM) vehicle builds.

Key Features

• MiniDisc Playback Engine: Smooth front-loading MD slot with title display and scroll function.

• Digital Harmonics Enhancer (DHE): Restores high-frequency detail and sound clarity for enhanced audio fidelity.

• Subwoofer Level Control: Direct front-panel access to adjust low-frequency subwoofer output independently.

• Ai-NET System Control: Full compatibility with Alpine Ai-NET CD changers, processors, and external audio adapters.

• High-Power Built-In Amplifier: Delivers 40W x 4 max output power for rich, room-filling sound.

• Classic JDM Styling: Illuminated tactile pushbuttons with green indicator accents and retro dot-matrix display panel.

Specifications

• Brand: Alpine

• Model: MDA-7751J

• Unit Size: 1-DIN / Single DIN

• Media Supported: MiniDisc (MD)

• Power Output: 40W x 4 Max

• System Expansion: Ai-NET System Bus (MD/CD Changer Control)

• Audio Processing: Digital Harmonics Enhancer (DHE), Mode/Loudness controls

Condition & Functionality

• Tested & Functional: Bench tested and operational. Unit powers up cleanly, display panel lights up, MiniDisc slot loads and ejects properly, and audio signal outputs functional sound. Minor cosmetic surface wear on edges/faceplate consistent with age and prior use.

Included Items

• Alpine MDA-7751J Main Head Unit Receiver and Wiring Harness