DIATONE DT-4200D
¥ 55,000 (around 1975)
Commentary
A cassette deck with Dolby circuit mounted on DT 4200.
Quick recording monitor system is adopted.
If you want to monitor the recording after it has been recorded, press the REVIEW button and release your finger at the desired location to see the regenerating condition. You can also do the same during playback.
A dolby circuit is installed as a noise reduction system.
Equipped with a chrome / normal tape selector which can switch both bias and equalizer.
Equipped with a muting circuit.
Equipped with end stopper.
Model Rating
| Type | Cassette deck |
| Truck type | 4-track 2-channel |
| Tape speed | 4.8cm/s |
| Fast-forward and rewind time | 80 seconds (C-60) |
| Frequency characteristic | 30 Hz ~ 16 kHz (Chrome Tape) 30 Hz ~ 13 kHz (Normal Tape) |
| Wow and flutter | Not more than 0.15% |
| Signal-to-noise ratio | 58dB(Dolby in) 50dB |
| Distortion factor | Chrome / Normal not more than 3% (0 vu) |
| Erasure rate | 60 dB or More (1 kHz, both Chrome and Normal) |
| Bias oscillation frequency | 85kHz |
| Equalizer curve time constant | Normal tape : 3,180 μ sec + 120 μ sec Chrome Tape : 3,180 μ sec + 70 μ sec |
| Crosstalk | Track to track : 40 dB or more (125 Hz) Channel to channel : 30 dB or more (1 kHz) |
| Input Level / Impedance (Unit : dB (V)) |
Mic : -71dB/2.2k Ω Line : -20dB/180k Ω DIN in : -30dB/20k Ω |
| Output Level / Impedance (Meter 0 VU) |
Output : -10dB/10k Ω DIN out : -9dB/50k Ω Phones : -25dB/8 Ω |
| Pwer | 100 VAC, 50Hz/60Hz |
| Power consumption | 13W |
| External dimensions | Width 412x Height 131x Depth 257 mm |
| Weight | 6.5kg |