Brand: Aiwa
The Aiwa AD-F640 is a digital audio system that was introduced by the Japanese consumer electronics company, Aiwa, in the late 1990s. It is part of Aiwa's Discmaster A series, which includes digital audio components for playback, recording, and sometimes both.The AD-F640 is a combined digital tuner, CD player, and MD recorder/player. Its MD player can record dubs from CDs and also to record from an external source, such as a cassette deck or a portable mini-disk player, via its Line-In terminal. The system is equipped with a large display that shows the tuner frequency, track information from the CD, and recording/playback parameters when recording from the MD or Line-In, respectively.In terms of sound quality, the AD-F640 is known for its powerful and rich sound, especially in the bass and midrange frequencies. This is attributed to Aiwa's proprietary "Acoustic Cavity Bass" technology that enhances low-frequency response.Other features of the AD-F640 include:- 12-digit display for track and CD text- Dual Bitstream Output for enhanced CD playback- Pause, Search, and Programmable functions for CD playback- An automatic sliding door, known as "Soft Touch," that protects the MD slot mechanism- A detachable remote control that allows function operation from a distance- Adaptive equalization for MD playback that compensates for the recording's age and media qualityThe AD-F640 has since been discontinued, but it remains a popular choice among audiophiles and vintage electronics collectors due to its high-quality sound and versatility as a digital audio system.