Audio Database
X-IV
Commentary

A portable stereo tape recorder with a cross field head.

The drive section is equipped with a Devi action motor that enables stable operation even after 1,000 hours of continuous use.

It has a built-in storage battery and an automatic charger.

4-speed, 4-track stereo / mono recording / playback is possible.

12-hour recording / playback is possible using 5-inch tape.

Equipped with an all-transistor amplifier with output of 4W.

All-push button type is adopted.

Uses a metal case.

The unit uses a 15x8cm cone type speaker.

There was a shoulder hanging leather carrying case sold separately.

Model Rating
Type Tape recorder
Method Inline 4-track, stereo / mono, recording / playback
Amplifier output 2W+2W
Tape Speed 2.375cm/s, 4.75cm/s, 9.5cm/s, 19cm/s
Total harmonic distortion factor 5% or less at 1 kHz, 0 VU, 8 ohm, 1W output
Wow flutter 0.16% rms or less (19cm/s)
0.17% rms or less (9.5cm/s)
0.28% rms or less (4.75cm/s)
0.35% rms or less (2.375cm/s)
Fast-forward and rewind time 75 seconds each (5-inch 180m tape)
Frequency characteristic 30 Hz ~ 20 kHz ± 3 dB (19cm/s)
30 Hz ~ 17 kHz ± 3 dB (9.5cm/s)
30 Hz to 11 kHz ± 3 dB (4.75cm/s)
30 Hz ~ 5.5 kHz ± 3 dB (2.375cm/s)
Recording system 4-track, stereo / mono
Cross field bias system
Signal-to-noise ratio 50 dB or More (Battery Operated)
45 dB or More (at AC Power Supply)
Crosstalk 60 dB or more at 1 kHz and 0 VU
Spekers 8x15cm cone
Transistor used X-IV Body
2SB302x6
2SB75x4
2SB77x1
2SB370x3
2SB89x1
AC Adapter
2SB77x1
2SB370x2
2SB89x1
Pwer DC : West German lead storage battery 3GX3U, 6 v, 2.6 ah
AC : 6-step switching between 100 V ~ 245 V AC, with AC adapter
External dimensions Width 300x Height 120x Depth 280 mm
Weight 5.1 kg (excluding battery)
0.6 kg (Battery Only)
Attachment Two high-sensitivity dynamic microphones
Sold Separately Carrying Case (¥ 6,500)
7-Type Winding Adapter XTA-4 (¥ 450)