“Is it possible to connect an additional wireless subwoofer to this model even from another brand?”
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Hello there, Trex. Thank you for reaching out about your LG Soundbar (S70TR). We appreciate your question, and we understand how important it is to know what expansion options are available for your setup. The S70TR is designed to work only with its LG‑compatible wireless subwoofers, and it cannot pair with an additional subwoofer from another brand. Wireless audio connections use LG‑specific protocols, so third‑party subs won’t sync with the system. You can explore the full feature list and support details here: https://www.bestbuy.com/product/lg-5-1-1-channel-s70tr-home-theater-soundbar-with-wireless-subwoofer-and-rear-speakers-dolby-atmos-wow-orchestra-black/JJ8VPZQWVT. If you’d like help exploring compatible LG subwoofer options or need further assistance, please send us an email at [email protected]. - Avril
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