Bose SoundDock Series II internals - amplifier board top - What's Inside
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2X 12V NE4558 HIFI Preamp Tone Board Bass Volume Control Pre-Amplifier Board - Walmart.com
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Mazda Bose audio power amplifier brief teardown. *UPDATE* - looks like this amplifier is using some 3X very weird & high tech chips TDA7575B (covered in... | By CSB Electronics. | Facebook
Replacing 84-96 Bose Speakers & Amps | CC Tech
Bose Amplifier Repair Notes Rev 3/14/02 Gary James
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Bose Parts
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Bose SoundDock Series 1 Amplifier Board SOUND DOCK Part 276992-001 | eBay