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EQ901PS-II Equalizer & Active Subwoofer Crossover Upgrade for BOSE 901 II Photo #1477477 - UK Audio Mart
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Amazon.com: SS Audio Replacement Speaker Woofer Compatible with Bose 301, Bose 601, W-810 : Electronics
![Finally joined the “Goodwill Find” club. Bose 901 IV for $20. Now I just need the EQ. Grills are in backseat. : r/audiophile Finally joined the “Goodwill Find” club. Bose 901 IV for $20. Now I just need the EQ. Grills are in backseat. : r/audiophile](https://preview.redd.it/9mr95b1f7qe41.jpg?width=640&crop=smart&auto=webp&s=87295b6cdcbdd13b20bb32ad6d1312c201591e51)
Finally joined the “Goodwill Find” club. Bose 901 IV for $20. Now I just need the EQ. Grills are in backseat. : r/audiophile
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