Telefunken Opus Hifi 7050

Data

General

• Manufacturer: Telefunken
• Model: Opus Hifi 7050
• Type: Receiver
• Years of manufacture: 1976 - 1978
• Made in: Germany
• Color: Front silver / black, housing walnut light with anthracite side panels or sanding white pearl with white side panels or black
• Remote control:
• Power consumption:
• Dimensions: 618 x 118 x 300 mm (WxHxD)
• Weight: 8,5 kg
• Original price approx:
  • Walnut nature: 1'398 DM
  • Black, sanding varnish white: 1'420 DM

Connections

• Number of inputs:
  • Phono (MM): 1.85 mV / 47 kOhm.
  • Phono (crystal): 240 mV / 470 kOhm

Tape Play: 240 mV / 470 kOhm

• • Antenna (FM: 75, 300 Ohm, MW: 300 Ohm).
• Number of outputs:
  • Tape Rec: 1.7 mV / 1.7 kOhm
  • 2 headphones: > 200 Ohm
  • 3 pairs of loudspeakers

Technical Data

Amplifier

• Continuous power
  • 8 Ohm:
  • 4 Ohm: 2x 50 W
• Dynamic power
  • 8 Ohm:
  • 4 Ohm: 2x 70 W
• Total harmonic distortion: < 0,5 %
• Dämpfungsfaktor: 55 (8 Ohm)
• Frequenzgang: 20 Hz - 22 KHz, ± 1,5 dB
• Signalrauschabstand: >64 dB
• Tone control:
  • Bass: ± 17 dB at 40 Hz
  • Mids: + 9.5 dB, - 7.5 dB at 2 kHz
  • Treble: + 13 dB, - 14 dB at 15 kHz
• Loudness:
• High Filter: yes, 18 dB / octave at 6'500 Hz
• Low Filter (Subsonic): yes, 12 dB / octave at 100 Hz
• Mute:

Tuner

• Reception: FM, MW, LW, KW
• Frequencies:
  • FM: 87.6 - 108 MHz

MW: 515 - 1645 kHz

• • LW: 145 - 330 kHz

CW: 5.75 MHz - 15.55 MHz

• All other data for VHF
• Frequency response: 15 - 30'000 Hz, ± 1 dB
• Input sensitivity: 2.0µV
• Distortion factor:
  • Mono: < 0.4 %

Stereo: < 0.5

• Signal-to-noise ratio: 72 dB
• Channel separation: 65 dB
• Selectivity: 65 dB
• Co-wave selection: 1.5 dB
• Spurious wave selection:
• Image frequency attenuation: 90 dB
• IF attenuation:
• AM suppression:
• Station memory: 7x FM

Special Features

• 2 headphone jacks
• Slider for bass, mids, treble, volume
• FM muting
• FM AFC

Notes

• Other models in the same series:
• Receiver
• Telefunken Concertino Hifi 3520
• Telefunken Concerto Hifi 4530
• Telefunken Hymnus Hifi 6040
• Telefunken Opus Hifi 7050

• Tape Deck
• Telefunken MC 2400
• Telefunken MC 3300

• Reel-to-reel tape decks:
• Telefunken M3002L - with built-in power amplifiers

• record players:
• Telefunken W 248
• Telefunken W 268
• Telefunken S 500
• Telefunken S 600

Pictures

• Extract from brochure: Telefunken Opus Hifi 7050

Links

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