Status: 04-07 - Out of stock. Due to a major manufacturer delay the current estimate is late May. Please email sales@hsuresearch.com if you want to receive updates via email.

The new VTF-TN1 is our highest-performing subwoofer, designed for the ultimate home theater experience. With its exceptional capabilities, the VTF-TN1 stands as the pinnacle of performance in the HSU lineup.

• Highest performing subwoofer that excels in output capability, especially in the deeper bass.
• Classic variable tuning frequency (VTF) with dual 4” down-firing ports - hidden from the dogs, cats, and toddlers.
• Perfect height acoustically, to use as a speaker stand.
• Features balanced XLR, unbalanced RCA and high level inputs for greater flexibility.
• Balanced XLR inputs protect against noise caused by RF interference, RMI, etc for usage in high-end audio and professional audio (studio, live sound environments).
• Compared to other HSU subs:
• Larger enclosure than the VTF-3 MK5 HP, so more efficient in the deeper bass
• Larger ports at a lower tuning than the VTF-3 MK5 HP, so it not only plays louder and cleaner with sub 20 Hz bass (less port noise), but also plays lower
• Plays significantly louder and cleaner than the VTF-2 MK5 across the board (like having two of the VTF-2 MK5’s put together) with low distortion.
• Plays significantly louder and cleaner than the ULS-15 MK2 in the deeper bass (like having two ULS-15 MK2’s put together) with  low distortion.
• Among the smallest footprint - similar to the ULS-15 MK2.
• Replaces our previous flagship VTF-15H MK2:
• Tuned to go even lower, with a flatter frequency response.
• Less port noise and compression.
• More affordable price.
• Smaller footprint: won't fill up your living room, and more placement options for optimal sound.
• Same internal volume.
• Can also be laid on its side if preferred. Less deep than most sofas, makes a good end-table.
• Best affordable home theater subwoofer and best 15 inch subwoofer on the market today.
• Furniture-grade smooth satin black painted finish. Unlike vinyl, used by many of our competitors.
• 7 years woofer warranty and 5 year electronics warranty.