Onkyo TX-7840

Data

General:

• Manufacturer: Onkyo
• Model: TX-7840

Type: Receiver

• Years of manufacture: 1991 - 1992
• Made in: Malaysia
• Color: Black
• Remote control: yes
• Power consumption: 50 hz ~300 Watt
• Dimensions: 455 x 150 x 331.5 mm
• Weight: 10.5 kg
• Original price approx.: 1'000 DM

Connections:

• Number of inputs:
  • 1xPhono; 1x CD; 2x Tape; 2x Video
• Number of outputs:
  • list the outputs here (with level/impedance).

Technical data:

Amplifier

• Continuous power (at distortion)
  • 8 Ohm: 2 x 80 Watt
  • 4 Ohm: 2 x 115 Watt
• Total harmonic distortion: 0.08 %
• Attenuation factor: 60 at 8 Ohm
• Frequency response: 20 - 30,000 Hz +/- 1 %
• Signal-to-noise ratio: phono 80 dB, CD/tape 100 dB
• Tone control:
  • Bass: +/- 10 dB at 100 Hz

Treble: +/- 10 dB at 10,000 Hz

• Loudness: yes
• Subsonic:
• Mute: yes
• Direct/Line-Straight: yes
• Stereo Channel Separation:

Tuner

• Reception: FM, MW
• Frequencies:
  • FM: 87.5 - 108.0 MHz

MW: 522 - 1611 kHz

• Frequency response: 30- 15,000 Hz +/- 1.5 dB
• Input sensitivity: 0.9 µV (mono, 26 dB S/N, 40 kHz deviation); 23 µV (stereo, 46 dB S/N, 40 kHz deviation)

Distortion factor: Mono: 0.15%, Stereo: 0.25% Signal-to-noise ratio: Mono: 73 dB, Stereo: 67 dB

• Channel separation: 45 dB
• Selectivity: 50 dB (DIN)
• Co-wave selection: 1.5 dB
• Spurious wave selection:
• IF attenuation: 85 dB
• IF attenuation: 90 dB
• AM suppression: 50 dB
• Output level:
• RDS: No
• Station memory: 40

Special Features

• Surround/Simu Mode: 75 watts (effective) per channel 8 ohms, <0.8% THD.
• Remote/Rear : 12 watts (rms) per channel 8 ohms, <0.8 % THD

Simultaneous source selection (e.g. radio and tape, so it is possible to listen to another source in the next room).

Remarks

• Other models of the same series:
• Onkyo TX-7800
• Onkyo TX-7820
• Onkyo TX-7830
• Onkyo TX-7840

Pictures

• [[Picture: Onkyo TX-7840