Amplificator Marantz model 2270

Amplificator Marantz model 2270: 4 iesiri, vintage amplifier, design in USA, made in japan, 500W consum, 2 radiatoare, multipath, hiblend, low/high filter, loudness, muting, bass/medii/inalte, balance, reglaj pe fiecare canal, radio cu scala iluminata, vu metre signal,  gyro touch tunning, poze reale.

General

• Manufacturer: Marantz
• Model: 2270
• Years of manufacture: 1971 - 1975
• Made in: Japan (the often made statement that the first models are made in USA is wrong).
• Color: Silver (Black)
• Remote control: no
• Power consumption: 500 W max / 38 W rest
• Dimensions: 439 x 137 x 366 mm (WxHxD)
• Weight approx.: 17.7 kg

Price: Lt. Marantz price lists v.10/72, 73 and 74 2.895,00 DM

Connections

• Number of inputs:
  • 2x Tape Play, Aux: 180 mV / 100 kOhm.
  • 2x Phono: 1,8 mV / 47 kOhm
  • 1x FM antenna ext. (300 Ohm)
  • MW antenna
  • Dubbing in
  • Main In
• Number of outputs:
  • 2x Tape Rec: 775 mV
  • Quadradial
  • Dubbing out
  • Pre Out
  • Headphones (6,3mm jack)
  • 2 pairs of speakers

Technical Data

Amplifier

• Continuous power (at distortion factor): 0.3%.

16 Ohm: 2x 53 W (DIN) 8 Ohm: 2x 70 W (RMS)

• • 8 Ohm: 2x 90 W (DIN)
  • 4 Ohm: 2x 140 W (DIN)
• Dynamic power:
  • 8 Ohm: 2x 135 W
  • 4 Ohm: 2x 210 W
• Total harmonic distortion: < 0,3%
• Dämpfungsfaktor: 45 (8 Ohm)
• Frequenzgang: 20 - 20.000 Hz (±1 dB)
  • Leistungsbandbreite: 7 - 50.000 Hz
• Signalrauschabstand: 80 dB (Hochpegel)
• Stereokanaltrennung: >35 dB
• Tone control: (each L/R separated)

Bass: ±14 dB (50 Hz)

• • Mids: ±6 dB (800 Hz)

Treble: ±12 dB (15 kHz) Loudness: 100 Hz (+8 dB), 10 kHz (+5 dB)

• High Filter: yes
• Low Filter (Subsonic): yes
• Mute:

Tuner

• Reception: FM/MW
• Frequencies:
  • FM: 87.5 - 108 MHz
  • MW: 540 - 1,602 kHz
• Frequency response: 50 - 15,000 Hz (±1dB)
• Input sensitivity:
  • VHF: 1.3 µV of 26 dB, 1.5 µV of 30 dB.
  • MW: 25 µV
• Distortion factor:
  • FM: 0.2% (mono), 0.4% (stereo).
• Signal-to-noise ratio:
• Channel separation:
  • FM: 40 dB (at 1 kHz)
• Selectivity:
• Equal wave selection:
  • FM: 1.9 dB
• Spurious wave selection:
  • FM: 80 dB
• Mirror frequency attenuation:
  • VHF: 90 dB
• IF attenuation:
  • FM: 100 dB
• AM suppression: 60 dB