TRIO KX-4000
¥ 43,800 (around 1977)
Commentary
Stereo cassette deck with bias equalizer switch and noise filter.
Hard permalloy head is used for the head.
The mechanism uses a precision finished capstan with a roundness error of 0.1 μ and achieves stable rotation.
It is equipped with a noise filter to reduce tape hiss and tape noise added during recording.
You can switch between two levels of bias (normal / chrome) and three levels of equalizer (normal / chrome / extra) in order to record data using the bias and equalizer values that are most suitable for the tape you are using.
When the tape has finished running, the full auto shut-off mechanism is activated to prevent stress on the tape and mechanism.
It is equipped with a VU meter with a recording magnetic flux density of 160 pwb of the tape as the recording standard level of 0 VU.
Equipped with a mirror that makes it easy to check the running state of the tape and the remaining amount of the tape.
Equipped with a timer start mechanism that can be used to record messages and play alarm clock by connecting a commercially available timer.
There was a carrying handle as an option sold separately.
Model Rating
| Type | Stereo cassette deck |
| Track format | 4-track, 2-channel stereo |
| Motor | Electronically controlled DC motor |
| Heads | Recording : hard permalloy head Erasing : ferrite heads |
| Tape speed | 4.76cm/s |
| Wow and flutter | 0.09% or less (WRMS) |
| Frequency characteristic | Chrome : 30 Hz ~ 16 kHz (40 Hz ~ 14 kHz ± 3 dB) Normal : 30 Hz to 14 kHz (40 Hz to 13 kHz ± 3 dB) |
| Signal-to-noise ratio | Normal : 50 dB or more Chrome : 53 dB or more |
| Fast forward and rewind | 80 seconds or less (at C-60 tape) |
| Overall strain rate | 1.5% or less (1 kHz, 0 VU, normal tape) |
| Recording bias | AC 85 kHz |
| Erasing method | AC erase |
| Input Sensitivity / Impedance | Mic : 0.2mV/8k Ω (low-impedance microphone) Line : 77.5mV/400k Ω Din : 0.9mV/4k Ω |
| Output Level / Impedance | Line, Din : 0.5V/100k Ω |
| Pwer | 100 VAC, 50Hz/60Hz |
| Power consumption | 10W |
| External dimensions | Width 380x Height 140x Depth 288 mm |
| Weight | 6.5kg |
| Sold Separately | Carrying Handle D-5 (Left / Right 1 set, ¥ 2,000) |