Loewe SX 6772

Data

General

• Manufacturer: Loewe
• Model: SX 6772 (TA 4000)
• Type: Receiver
• Years of manufacture: 1979 - 1981
• Made in: Germany
• Color: Silver, Black
• Remote control: No
• Power consumption: 170 W
• Dimensions: 480 x 147 x 366 mm (WxHxD)
• Weight: 9.7 kg
• Original price approx.: 628 DM

Connections

• Number of inputs (DIN 5 pole):
  • 2 x tape 200 mV/50 kΩ
  • 2 x phono: 2.5 mV/47 kΩ
  • FM antenna ext. (300 Ω).
  • AM antenna
  • Aux: 200 mV/50 kΩ
• Number of Outputs:
  • 2 x Tape Rec: 775 mV
  • Headphones (6.35 mm jack).
  • 2 pairs of speakers (DIN 41529)

Technical Data

Amplifier

• Continuous power
  • 8 Ω: 2 x 17 W
  • 4 Ω: 2 x 25 W
• Frequency response: 30-20,000 Hz
• Power bandwidth: 20-20,000 Hz
• Distortion factor (20 Hz - 20 kHz).
  • 8 Ω:
  • 4 Ω: 0.1% at 20 W.
• Intermodulation: 1% at 10 W
• External voltage spacing.
  • Phono: 55 dB
  • Aux: 60 dB
• Crosstalk attenuation
  • at 1 kHz: 45 dB
  • at 10 kHz: 40 dB
• Bass control (at 100 Hz): ± 11 dB
• Treble control (at 10 kHz): ± 11 dB
• Noise filter (at 10 kHz): -6 dB/oct.
• Rumble filter (at 70 Hz): -
• Loudness (-30 dB)
  • 100 Hz: +10 dB
  • 10 kHz: +5 dB
• Attenuation factor
  • at 4 Ω: 25
  • at 8 Ω: 70
• Input sensitivity for nominal output power
  • phono: 2.5 mV/47 kΩ
  • Tape: 200 mV/50 kΩ
  • Aux: 200 mV/50 kΩ
• Speaker impedance: 4-8 Ω
• Headphone impedance: 8-600 Ω

Tuner

• Reception: VHF/MW
• Frequencies:
  • FM: 87.5 - 108 MHz

MW: 540 - 1,605 kHz

• FM section

• Sensitivity (300 Ohm) mono 26 dB S/R:
  • 2 µV
• Distortion factor
  • Mono: 0,5%

Stereo 0.8%

• Frequency response ± 3 dB:
  • 40 - 12500 Hz
• Common wave selection (1 mV input):
  • 2 dB
• Selectivity (100 µV input):
  • 50 dB
• S/R (1 mV, 75 kHz deviation):
  • 50 dB
• Pilot attenuation:
  • 50 dB
• Stereo crosstalk attenuation (1 kHz):
  • 38 dB
• AM suppression:
  • 48 dB
• IF suppression:
  • 75 dB
• IF attenuation:
  • 45 dB
• adjacent channel attenuation:
  • 70 dB
• Muting threshold:
  • 10 µV

• AM section

• Sensitivity 26 dB S/R:
  • 120 µV
• selectivity:
  • 40 dB
• IF suppression:
  • 30 dB
• Image frequency attenuation:
  • 45 dB

Remarks

• Other models in the same series:
• Amplifier:
• Loewe SX 6576

• Tuner:
• Loewe SX 6674

• Receiver:
• Loewe SX 6772
• Loewe SX 6773
• Loewe SX 6776

• Tape Deck
• Loewe EK 3537

• Record player:
• Loewe RA 1010

• Loudspeaker:
• Loewe B 35
• Loewe B 45
• Loewe B 70

Pictures

• Extract from brochure: Loewe SX 6772

Reports

• The receiver Loewe TA 4000, type SX 6772 was indeed "the small one" in the Loewe Hifi series, but offered the many application possibilities and the ease of use of the "big ones". Two pairs of loudspeakers could be connected, as well as two tape recorders, two record players and a further high-level programme source (Aux). The rated output power (DIN) was 2 x 25 W into 4 ohms. The built-in FM/MW tuner had a FM sensitivity of 2.5 µV into 300 ohms. A combination instrument for field strength and transmitter centre display and the wide analogue dial allowed precise tuning of a desired station, with AFC circuitry determining the optimum tuning point. Stereo transmitters were indicated by a light-emitting diode. Due to the numerous connections and the large amount of circuitry, it was possible to record to two tape recorders at the same time with the SX 6772 receiver, or to transfer directly from one tape to another. The recording could be controlled at any time, when using three-head machines also 'back tape'.