This OSD iDSP is designed specificially for subwoofers. It is currently $79.99 at the time of making this video.
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Disclosure: The Affiliate links above earn me a commission if you purchase using those links. This is at no additional cost to you. OSD is a channel sponsor, but all opinions are my own, and they have not watched this review prior to me posting. AFFILIATE LINKS:
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Disclosure: The Affiliate links above earn me a commission if you purchase using those links. This is at no additional cost to you. This product was sent free for the purpose of this review.