BIC T-4M
Dolby B NR Wired Remote Control Full Logic Metal Tape 3 Head

This BIC T-4M is a stereo cassette deck with Dolby B noise reduction, it was first sold by BIC in 1979 with a recommended retail price of USD $750 and discontinued 5 years later in 1984.

The main features of the BIC T-4M are: 3 heads and off-tape monitoring, digital tape counter with 3 digits and memory stop, manual tape type selection and capable of handling normal, chrome and metal tapes with additional manual equalization selection, 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 T-4M are generic digital peak reading meters with multi-color indication to provide visual saturation level of tape. Full-logic transport controls used on the T-4M let it respond to the slightest finger contact for fast and effortless transport function selection. 9,5 cm/s faster recording/playback speed used in the T-4M offers extended frequency response, increased dynamic range and transient response. T-4M, playback speed may be adjusted with pitch control.

To ensure the best response from the wide variety of tapes available adjustment of, sensitivity, to optimum levels can be performed prior to recording.

The Dolby-B system reduces tape hiss on tapes recorded on the T-4M by as much as 10 dB at the highest frequencies. 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 T-4M filters out the pilot signal, and assuring proper Dolby processing of FM stereo programs.

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. All main transport commands can be issued remotely with a wired remote control.

Compact Cassette
  • Dual Capstan
  • 3 Head
  • Peak Level Meter
  • Metal Tape
  • Bias Trim
  • MPU Control

Historic events

1979 The video game "Asteroids" is created.
1980 Pac-Man arcade game developed by Namco released in Japan.
1981 Dave Smith proposes the Universal Synthesizer Interface that would become the MIDI standard in 1983.
1982 Dolby HX introduced by Dolby Laboratories
1983 Apple introduces the Lisa computer, the first commercial personal computer with a graphical user interface (GUI).
1984 IBM announces the IBM Portable PC, for US$2900.

Features of BIC T-4M

Calibration
Calibration
400Hz Test Tone 10kHz Test Tone Manual Level Calibration
Connectors
Connectivity
2 Mono Microphone Inputs RCA Input/Output Connectors Headphones Wired Remote Control
Display
Display
3-Digıt Digital Counter Digital Peak-Reading Meters Multi Color Peak-Reading Meters
Cassette Exterior
Exterior
Orientation Left Wood Case Black Finish Front Loading
Compact Cassette
General
Stereo
Head
Head Configuration
3 Head Desiǥn 4 Track / 2 Channel
Indicators
Indicators
Record Play Pause Dolby B
HighCom NR
Noise Reduction
Dolby-B Noise Reduction MPX Filter
Controls
Operation
Full Logic Transport Control Auto-Play Memory Repeat Record Mute Memory Stop Pitch Control Real-Time Tape Monitoring Memory Play
Power
Power Requirements
Alternating Current
Preamplifier
Preamplifier
Microphone Level Adjust (Left/Right) Individual Input Level Controls Output-Level Control Headphone Volume Control
Tape Speed
Speed
1⅞ ips - 4.76 cm/s 3¾ ips - 9.52 cm/s
Tape
Tape
Manual Tape Type Selection Normal Tape Capabılity Manual Tape Equalization Chrome Tape Capabılity Metal Tape Capabılity
Transport
Transport
Auto Shutoff Mechanical Tape Loading Dual-Capstan Transport Belt Drive (Capsŧan)

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Last update on Dec 3, 2024 1:49:13 PM CET

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