Product Description
Description
Offering most of the features of the AD-F990, the sophisticated AD-F770 features Dolby HX professional and DATA circuitry, ensuring sound reproduction that out rivals any other model in its class.
From the all-new flat keyboard control panel to the unique all-mode time display, the AD-F770 is the kind of machine you can depend on for the best in cassette performance.
Specifications
I have found a review of the AD-F990. It's from a long-defunct underground mag called The Flat Response. Part of a subjective group review including the Yamaha KD-320, Sony WM-D6C, B&O 9000 and Nak Dragon. I haven't scanned it yet but let me know if you want to see it and I'll do it. AIWA AD-F990 Audiophile Cassette Deck - 3-Heads, Dual Capstan. Condition is Used. US Model unit, 120VAC power. This deck was called the Dragon Slayer and Nakamichi Killer. Non-Smoking environment. Dolby B/C/HX-Pro. Microprocessor-controlled tape transport. Automatic tape bias/EQ. Tape type sensing. Automatic head demagnetization. I would consider myself an audiophile and also have some experience in professional recording. You can take that for whatever it is worth. For the record I have an Onkyo TA-2056 and an Aiwa AD-F990. Both are 3-head and date from 1985 or 1986 or so. I bought the Onkyo at dealer cost and the Aiwa.
Type: 3-head, single compact cassette deck
Track System: 4-track, 2-channel stereo
Tape Speed: 4.8 cm/s
Heads: 1 x combination record/playback, 1 x erase
Motor: 1 x reel, 1 x capstan
Aiwa Ad F990 Review Car And Driver
Tape Type: type I, Cr02, Metal
Noise Reduction: B, C
Frequency Response: 20Hz to 20kHz (Metal tape)
Signal to Noise Ratio: 60dB (dolby C)
Wow and Flutter: 0.025%
Total Harmonic Distortion: 1.3%
Input: 50mV (line), 0.3mV (mic)
Output: 0.41V (line)
Semiconductors: 37 x IC, 91 x transistors, 87 x diodes, 19 x LED
Dimensions: 420 x 110 x 280mm
Weight: 5.5kg
Year: 1983
This Aiwa AD-F910 is a stereo cassette deck with Dolby B/C and HX-Pro noise reduction, it was first sold by Aiwa in 1991 with a manufacturer suggested retail price of USD $465 and discontinued a year later.
Aiwa Ad F990 Review Consumer Reports
The main features of the Aiwa AD-F910 are: 3 heads and off-tape monitoring, digital tape counter with 4 digits, automatic tape type selection and capable of handling normal, chrome and metal tapes.
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.
Aiwa Ad F990 Review New York Times
Level meters used on the AD-F910 are generic digital peak reading meters with peak hold for easy adjustment of optimum recording level. Full-logic transport controls used on the AD-F910 let it respond to the slightest finger contact for fast and effortless transport function selection.
Aiwa Ad F990 Review Guide
Dolby C-type used in the AD-F910 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 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-F910 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. All main transport commands can be issued remotely with a wireless remote control.