{"id":1547,"date":"2021-01-20T11:57:07","date_gmt":"2021-01-20T11:57:07","guid":{"rendered":"https:\/\/www.wisdomaudio.com\/?post_type=product&p=1547"},"modified":"2025-05-12T12:33:19","modified_gmt":"2025-05-12T12:33:19","slug":"s90i","status":"publish","type":"product","link":"https:\/\/www.wisdomaudio.com\/product\/s90i\/","title":{"rendered":"S90i"},"content":{"rendered":"\n
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S90i<\/h1>\n\n\n\n

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In-Wall (2×6) RTL Subwoofer<\/h2>\n\n\n\n
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The S90i\u2019s highly efficient design yields fast, dynamic, articulate results with accurate timbre. This is a high-end subwoofer solution for customers who desire no-compromise performance, but prefer the aesthetic benefits of custom-installed, hidden loudspeakers. The S90i\u2019s superb performance characteristics include a flat response to 20 Hz with usable in-room energy down to 17 Hz, and outstanding dynamic capability, and accurate timbre reproduction. Three versions are available: S90i<\/strong> (when an exposed grille is needed), S90 basic-port<\/strong> (when you are going to place it behind scrim cloth\/acoustic fabric and you do not need a grille, and S90-f\/c<\/strong> (when you need to extend the port of the S90 from the attic, crawl space, or an adjacent room).<\/p>\n\n\n\n

The Regenerative Transmission Line\u00ae<\/h3>\n\n\n\n

Regenerative Transmission Line\u00ae<\/strong> designs yielded the unique combination of high sensitivity, high output, and low distortion with the uniform and extended response we required. The result is extraordinary power and punch combined with a remarkable level of quickness, tunefulness, and realism.<\/p>\n<\/div><\/div>\n\n\n\n

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