Marantz MR-250

Data

General

• Manufacturer: Marantz
• Model: MR-250
• Year of manufacture: around 1975
• Made in:
• Color: silver/wood
• Remote control: no
• Power consumption:
• Dimensions: 440 x 137 x 358 mm (WxHxD).
• Weight: 12 kg
• New price approx:

Connections

• Number of inputs:
  • Aux (180 mV, 20 kOhm).
  • 2x Tape In
  • Phono (2,7 mV, 47 kOhm)
  • FM antenna (75/300 Ohm)
  • AM antenna
• Number of outputs:
  • 2x Tape Out
  • Headphones (6.3mm jack)
  • 2 pairs of loudspeakers

Technical Data

Amplifier

• Continuous power (at distortion)

8 Ohm: 2x 64 W (DIN), 2x 56 W (RMS)

• • 4 Ohm: 2x 98 W (DIN), 2x 55 W (RMS)
• Dynamic power
  • 8 Ohm:
  • 4 Ohm:
• Total harmonic distortion: 0.1% (at rated power)
• Attenuation factor: 77 (8 Ohm)
• Frequency response: 10 - 40,000 Hz (±1 dB)
• Signal-to-noise ratio:
  • Phono: 72 dB
  • Aux: 80 dB
• Tone control:
  • Bass: yes
  • Mids: yes
  • Treble: yes
• Loudness: yes
• Subsonic: yes
• Mute:
• Direct/Line-Straight:
• Stereo channel separation: 45 db

Tuner

• Reception: FM, MW
• Frequencies:
  • FM: 87.4 - 109 MHz
  • MW: 515 - 1,650 kHz
• Frequency response: 30 - 15000 Hz
• Input sensitivity:
  • FM: 1.7 µV

MW: 30 µV

• Distortion factor: 0.1%
• Signal-to-noise ratio: 62 dB (mono), 55 dB (stereo)
• Spurious voltage spacing:
• Channel separation:
• Selectivity:
• Co-wave selection:
• Spurious wave selection:
• IF attenuation:
• IF attenuation:
• AM suppression:
• Output level:
• RDS: no
• Station memory: no

Special Features

• here, if available

Remarks

Other models of the same series: