Pioneer Audiovisual - Our A-90 integrated amplifier from 1983 was not only exceptional in sound, features & quality appearance, it also had a beautiful interior design. Thanks, Pioneer Vintage HIFI. #vintagefriday | Facebook
VINTAGE PIONEER STEREO Amplifier A-90 Dynamic Power Silver Face Very Rare $550.00 - PicClick
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The 200 Watt Monster! The Pioneer A-90 Integrated Amp! - YouTube
Pioneer in specifications of Pioneer A-90D
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Pioneer SA-500A Stereo Amplifier 75W for sale online | eBay