Optonica SM-105 specifications

Category : Integrated amplifier

General

connectors

Technical data

special features

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• manufacturer: Optonica
• model: SM-105
• year of construction: 1981-1982
• Made in Japan
• color: silver
• type: Analog
• remote control: Yes, via optional FB-unit AD-105
• power consumption: 400 watts
• dimensions: 430 x 95 x 320 mm (W x h x d)
• weight: 7.8 Kg
• factory price approx.: 798.- DM (without remote control)

• number of inputs:
  • Phono MM to 2.3 mV/47 K-Ohm s
  • Tuner, Aux, Tape 140 mV/10 KOhm
  • Tape DIN 140 mV/47 K-Ohm s
  • microphone
• number of outputs:
  • the Rec Out 150 mV/220 Ohm s
  • the Rec-Out to DIN 45 mV/80 KOhm
  • headphones
  • 2x speaker

• Phono MM to 2.3 mV/47 K-Ohm s
• Tuner, Aux, Tape 140 mV/10 KOhm
• Tape DIN 140 mV/47 K-Ohm s
• microphone

• the Rec Out 150 mV/220 Ohm s
• the Rec-Out to DIN 45 mV/80 KOhm
• headphones
• 2x speaker

• continuous power (in total harmonic distortion)
  • 8 Ohm : 2x 40 watts
  • 4 Ohm : 2x 50 watts
• dynamic performance
  • 8 Ohm : 2x 60 Watt
  • 4 Ohm : 2x 77 watts
• total harmonic distortion: 0,01%
• damping factor Total: 20
• frequency response: 7 - 100000 Hz
• signal-to-noise ratio: 95 dB
• stereo channel separation:
• sound-control:
  • Bass: ±8 dB at 100 Hz
  • height: ±8 dB at 10,000 Hz
• Loudness: Yes
• High Filter : no
• Low Filter (Subsonic): no
• Mute: Yes
• Direct/Line-Straight: tone control can be switched off

• 8 Ohm : 2x 40 watts
• 4 Ohm : 2x 50 watts

• 8 Ohm : 2x 60 Watt
• 4 Ohm : 2x 77 watts

• Bass: ±8 dB at 100 Hz
• height: ±8 dB at 10,000 Hz

• electronic control of all functions
• 2 memory for sound settings

• Optonica program 1981-1982

• http://www.retro-optonica.de

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