Aiwa AD-F640 Stereo Cassette Deck

This Aiwa AD-F640 is a stereo cassette deck with double Dolby B/C and HX-Pro noise reduction, it was first sold by Aiwa in 1986.

The main features of the Aiwa AD-F640 are: 3 heads and no off-tape monitoring to save production cost, mechanical 3 digit tape counter, automatic tape type selection and capable of handling normal, chrome and metal tapes, belt driven dual-capstan transport.

Typical front loading cassette deck with the cassette compartiment located on the left side of the deck. Tape eject is operated mechanically and the cassette needs to be placed with the side to be played facing forward in the cassette well.

Level meters used on the AD-F640 are generic digital peak reading meters. Full-logic transport controls used on the AD-F640 let it respond to the slightest finger contact for fast and effortless transport function selection.

Dolby C-type used in the AD-F640 provides 20 dB of noise reduction above about 1,000 Hz, fully doubling the amount given by B-type. The Dolby HX PRO system provides precise bias control during recording to reduce distortion and improve linearity in the high-frequency range, the result is recorded sound that is highly faithful to the original. The three-head configuration of the AD-F640 requires a Double Dolby system, one for recording and one for playback. The 19kHz multiplex pilot slgnal present in FM stereo broadcasts can cause false triggering of the noise reduction system. The switchable MPX filter of the AD-F640 filters out the pilot signal, and assuring proper Dolby processing of FM stereo programs.

For undisturbed listening a jack connector for a pair of stereo headphones is supplied. Connection to other audio components for plaback can be achieved by a RCA cable and recording from a source by a RCA cable.

• Auto Tape Select System
• Timer Standby System
• Full Logic Control System
• 3 Head
• ADMS (Automatic Demagnetizing System)
• Micro Grain Processing Dual Capstan
• Peak Program Meter
• Metal