JVC A-X400

Data

JVC Stereo Integrated Amplifier A-X400 (B would stand for Black)

General:

• Type: dynamic super A high gain power amplifier.
• Manufacturer: JVC (Japan)
• Model: A-X400
• Color: silver or black
• Power: 220 V, 50 Hz, 160 Watt (Europe)
• Dimensions: 43.5 x 11.7 x 30.7 cm (WxHxD)
• Weight: 7,8 Kg
• Year of manufacture approx.: 1984
• New price 1985: 899, - DM (DDR Intershop)

Technical data:

• Inputs:
  • Phono MM: 2.5 mV / 47 kohm (ground connection available).
  • Phono MC: 200 µV / 100 Ohm, (MM, MC switchable)
  • DAD(CD), Tuner, AUX, Tape 1, Tape 2, 150 mV / 40 kohm

DIN socket: yes

• Output: 2 speaker pairs switchable (4-16 Ohm)
• Output power: 2 x 70 Watt sine wave

70 watts per channel at 8 ohms, 20 - 20,000 Hz no more than 0.007 % distortion factor 73 watts per channel at 8 ohms, 1 kHz not more than 0.002 % distortion factor

• • 80 watts per channel at 8 ohms, 1 khz, 0.7 % THD
• Power bandwidth: 5 - 40,000 Hz (IHF 0.05 % distortion at 8 ohms)
• Frequency response: 5- 100,000 Hz
• Signal-to-noise ratio:
  • MM: 87 dB

MC: 67 dB Line: 100 dB

• Attenuation factor: 50 (1 khz, 8 Ohm)
• Distortion factor: 0.007 % (70 watts)
• Tone control: 7 channel SEA equalizer (with memory slider)
• Center frequencies: 63, 160, 400, 1 k, 2.5 k, 6.3 k, 16 khz
• SEA adjustment range: ± 12 dB

Special feature:

• with SEA you can also change the sound of the tape recording,
• white glowing power level indicator,
  • display range of 0.003- 100 watts at 8 ohms, (left-right separated), (and at the push of a button 1/ 100)

1x centre-locking blance slide control

• Loutness switch: yes, (at -30 dB 100 Hz= + 6 dB, and at 10 khz= + 4 dB)
• speaker terminals: 2 pairs 8 - 16 Ohm, 1 pair 4 Ohm

Remarks

• buffer capacitors: 2x 10,000 µF (63 V)
• remote control: no, (also no Compu-Link)
• well suited for tape machines with rear tape control
• headphone output hidden behind a flap (bottom left)
• to this amplifier fits technically and especially optically the tuner JVC T-X 200 L
• Conclusion: still runs great today, also no scratching pots, solid workmanship.

Pictures