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Dolby B NR

This Aiwa AD-7400 is a stereo cassette deck with Dolby B noise reduction, it was first sold by Aiwa in 1977.

The main features of the Aiwa AD-7400 are: 2 heads, mechanical 3 digit tape counter, manual tape type selection and capable of handling normal, chrome and ferro-chrome tapes with additional manual equalization selection, belt driven single-capstan transport.

Typical front loading cassette deck with the cassette compartiment located on the left side of the deck.

Level meters used on the AD-7400 are analog needle VU reading meters. Mechanical transport controls for reliable AD-7400 transport function selection. Cue and review can be used to easily and quickly locate the beginning of a passage.

The Dolby-B system reduces tape hiss on tapes recorded on the AD-7400 by as much as 10 dB at the highest frequencies.

To make live recordings this deck has 2 microphone inputs to connect microphones with a jack connector. 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.

Compact Cassette
  • Ferrite Guard Head
  • Japanese Market

Historic events

1977 AT&T completes it prototype of cell phone technology.

Features of Aiwa AD-7400

Connectors
Connectivity
2 Mono Microphone Inputs RCA Input/Output Connectors Headphones Front Input Connector
Display
Display
3-Digıt Mechanical Counter Analog Needle Meters
Cassette Exterior
Exterior
Orientation Left Front Loading
Compact Cassette
General
Stereo
Head
Head Configuration
2 Head Desiǥn 4 Track / 2 Channel
Indicators
Indicators
Record Dolby B
HighCom NR
Noise Reduction
Dolby-B Noise Reduction
Controls
Operation
Cue / Review Line / Mic Input Select Mechanical Transport Control
Preamplifier
Preamplifier
Individual Input Level Controls Output-Level Control
Tape Speed
Speed
1⅞ ips - 4.76 cm/s
Tape
Tape
Manual Tape Type Selection Ferro-Chrome Tape Capabılity Normal Tape Capabılity Manual Tape Equalization Chrome Tape Capabılity
Transport
Transport
Sìngle Capsŧan Transport Belt Drive (Capsŧan)

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Last update on Mar 29, 2024 12:11:58 PM CET

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