DIATONE DT-4450
¥ 59,800 (around 1976)
Commentary
Front operated cassette deck.
A DC servo motor with a built-in generator is used for the drive motor of the mechanism section, which, together with a stable mechanism mechanism, improves uneven running.
The head uses a ferrite head with mirror surface finish.
A built-in Dolby circuit is used as a noise reduction system.
Equipped with a full auto-stop mechanism, the operation button is automatically released when the tape is finished regardless of whether recording, playing or rewinding.
It is equipped with a mechanical pause mechanism be stopped temporarily.
Equipped with a tape selector compatible with chrome and normal tapes.
Equipped with timer recording and re-mechanism.
Model Rating
| Type | Cassette deck |
| Track format | 4-track 2-channel |
| Motor | DC servo motor with built-in tacho generator |
| Heads | For Recording and Playback : Ferrite Head For Erasing : Ferrite Head |
| Tape speed | 4.8cm/s |
| Fast-forward and rewind time | About 90 seconds with a C-60 tape |
| Wow and flutter | 0.07%(WRMS) |
| Frequency characteristic | 30 Hz ~ 13 kHz (Normal Tape) 30 Hz ~ 16 kHz (Chrome Tape) |
| Signal-to-noise ratio | Dolby out : 50 dB or more Dolby in : 58 dB or more |
| Distortion factor | 2% (normal tape) 3% (Chrome Tape) |
| Equalizer curve time constant | 3,180 μ s/120 μ s (Normal Tape) 3,180 μ s/70 μ s (Chrome Tape) |
| Bias oscillation frequency | 85kHz |
| Input Sensitivity / Impedance (0 dB = 1 V) | Mic : -71dB/2.2k Ω Line : -21dB/270k Ω Din : -29dB/4.7k Ω |
| Output Level / Impedance (0 dB = 1 V) | Line : -10dB/22k Ω Din : -10dB/22k Ω Headphone : -25dBV/8 ohm |
| Pwer | 100 VAC, 50Hz/60Hz |
| Power consumption | 10W |
| External dimensions | Width 400x Height 148x Depth 289 mm |
| Weight | 7.9kg |