• Country
• Japan

• Manufacturer / Brand
• Pioneer Corporation; Tokyo

• Year
• 1992

• Category
• Audio Amplifier or -mixer

• Radiomuseum.org ID
• 218672

• Number of Transistors
• Semiconductors present.

• Semiconductors

• Main principle
• Audio-Amplification

• Wave bands
• - without

• Details
• Hi-Fi equipment

• Power type and voltage
• Alternating Current supply (AC) / 220; 240 Volt

• Loudspeaker
• - This model requires external speaker(s).

• Power out
• 500 W (unknown quality)

• Material
• Metal case

• from Radiomuseum.org
• Model: Stereo Power Amplifier M-90a - Pioneer Corporation; Tokyo

• Shape
• Book-shelf unit.

• Dimensions (WHD)
• 457 x 163 x 432 mm / 18 x 6.4 x 17 inch

• Notes
• 2 x 250 Watt Sinusleistung (8 Ohm).

• Net weight (2.2 lb = 1 kg)
• 23 kg / 50 lb 10.6 oz (50.661 lb)

• Source of data
• -- Original prospect or advert

• Other Models

• Here you find 1147 models, 1131 with images and 201 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Pioneer Corporation; Tokyo