{"product_id":"zu-audio-undertone-3-subwoofer-walnut","title":"Zu Audio Undertone 3 Subwoofer; Walnut","description":"Featuring a 12-inch down-firing Eminence driver powered by an integrated 400-watt Hypex UcD amplifier, the Zu Audio Undertone 3 is a high-performance sealed subwoofer built for deep, effortless bass. Engineered with high-density composite cabinet construction and Lundahl isolation transformers, it bridges low-end authority with musical nuance. Its connectivity includes RCA line-level inputs, sub feeds, and speaker-level 5-way binding posts, allowing seamless integration with high-efficiency speakers and two-channel setups. Covering a 14 to 80 Hz bandwidth with onboard signal processing, it delivers structural depth and speed without overwhelming the room.\n\nCritics and listeners praise the Undertone 3 for its lightning-fast transient response, articulate pitch definition, and total lack of muddy boom. Reviewers highlight its ability to blend seamlessly with quick, full-range speakers, creating an invisible bass foundation rather than a disconnected thump. Reviews frequently note its musicality across complex acoustic passages and cinema audio, commending its dead-silent amplification, solid cabinet damping, and versatile room-tuning controls.\n\nIntegrating this active sub into your setup resolves the lowest octaves while dramatically expanding the scale, imaging, and three-dimensional air of your favorite recordings without sacrificing speed or rhythm.","brand":"The Music Room","offers":[{"title":"Default Title","offer_id":53209355125017,"sku":"99570","price":2249.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0844\/4225\/1545\/files\/99570-3.jpg?v=1789770155","url":"https:\/\/tmraudio.com\/products\/zu-audio-undertone-3-subwoofer-walnut","provider":"The Music Room","version":"1.0","type":"link"}