Audio Database

Image of DT 4000
Commentary

A stereo cassette deck developed for high-fidelity recording and playback.

Excellent wow and flutter characteristics are obtained by belt drive with outer rotor type hysteresis synchronous motor and large flywheel.

A cut-core type power supply is installed to suppress leakage noise from the power supply.

The amplifier is a direct connection method for each stage, and is designed with low distortion by applying a large amount of FB.

The operation buttons are lever operated, the recording and stop buttons are color-coded, and the music cassette is equipped with an error recording prevention mechanism to prevent accidental deletion.

It is equipped with independent slide volume on the left and right, temporary stop lever and VU meter.

The headphones are designed as independent circuits so that they can be monitored regardless of the lineout.

Equipped with a tape counter.

Model Rating
Type Four track, two channel cassette deck
Tape type Cassette
Truck type 4-track 2-channel stereo
Tape speed 4.8cm/s
Fast-forward and rewind time 70 seconds or less (at C-60)
Recording system AC bias
Process of elimination AC Erase
Frequency characteristic 50 Hz to 10 kHz ± 3 dB
Wow and flutter 0.14% Wrms or less
Signal-to-noise ratio 45 dB or more
Bias frequency 55kHz
Regeneration time constant 120 μ sec
Input Sensitivity / Impedance Mic : 0.3mV/1k Ω
Aux : 0.1mV/330k Ω
Din:30mV
Output Level / Impedance Output : 0.5V/2.2k Ω
Din : 0.5V/2.2k Ω
Headphone : 8 Ω or more
Motor used Outer rotor hysteresis synchronous motor
Semiconductor used Transistor : 17
Diode : 12 pcs
Power supply voltage 90 VAC ~ 110 V, 50Hz/60Hz
Power consumption 20W
External dimensions Width 290x Height 86x Depth 215 mm
Weight 4.2kg