Coral A-550

Data

General

• Manufacturer: Coral
• Model: A-550
• Type: Amplifier
• Years of manufacture: 1967 - 1971
• Made in: Japan
• Color: Gray / rust, housing wood
• Power consumption:
• Dimensions (WxHxD): 400 x 146 x 278 mm
• Weight: 6 Kg
• Original price approx.: 900 DM

Connections

• Number of inputs:
  • Input sensitivity:
  • Phono 1 MM: 2.5 mV
  • Phono 2 MC: 0.04 mV
  • Tuner: 200 mV
  • AUX: 200 mV
  • Tape Play: 200 mV
  • Tape Play DIN:
  • Main In:
• Number of Outputs:
  • Outputs:
  • Tape Rec:
  • DIN:
  • Pre Out:
  • Headphones:
  • Connectors for 2 pairs of speakers

Technical Data

• Continuous power (at distortion factor)
  • 8 Ohm: 2x18 W
  • 4 Ohm:
• Dynamic power
  • 8 Ohm:
  • 4 Ohm: 50 W
• Total harmonic distortion: < 0.8% THD at rated power from 20 - 20000 Hz
• Attenuation factor: 30 at 8 Ohm
• Frequency response: 20 - 40'000 Hz
• Power bandwidth: 15 - 30000 Hz
• Signal to noise ratio:
  • Phono MC: 60 dB
  • Phono MM: 65 dB
  • Tuner: 70 dB
  • AUX: 70 dB
  • Tape Play: 70 dB
• Tone control

Bass: ± 12 dB at 100 Hz Treble: ± 12 dB at 10 kHz

• Loudness: + 7 dB at 100 Hz, + 6 dB at 10 kHz
• High Filter: - 8 dB at 10 kHz
• Low Filter: - 8 dB at 50 Hz

Special Features

• Mono / Stereo switch
• Pre- and power amplifier separable

Remarks

• Other models in the same series:
  • Coral A-7
  • Coral A-550
  • Coral A-707
  • Coral A-1000

• Coral Tuner
  • Coral T-50

Pictures

• Picture: Coral A-550 brochure excerpt

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