The Douk Audio NS-14G-PRO is a subwoofer amplifier with a Bluetooth input, made to give a passive subwoofer its own dedicated amplification. It suits home theater and hi-fi tinkerers adding low end to a system, and DIY speaker builders powering a passive sub project.
Who the Douk Audio NS-14G-PRO is for
Passive subwoofer owners: An unpowered sub needs an amp of its own, and this one is designed for exactly that duty.
Home theater and hi-fi tinkerers: Add low end to an existing system by giving the sub its own dedicated amp.
DIY speaker builders: A practical way to power a passive sub you've built or are still building.
Bluetooth sources: Wireless sources can connect over Bluetooth on the same unit.
Skip it if: your subwoofer is already powered; the NS-14G-PRO is meant to supply amplification for a passive sub.
Douk Audio NS-14G-PRO key specs
Type: Subwoofer amplifier
Designed for: Passive subwoofers and DIY sub builds
Wireless input: Bluetooth
Color: Black
Genuine, brand-new stock. Free US shipping and 45-day returns from TonePier. TonePier ships free within the US and offers 45-day returns, so you can dial in the NS-14G-PRO with your sub before committing.
Douk Audio NS-14G-PRO vs similar options
vs Fosi Audio BT20A Pro: A stereo TPA3255 Class D power amp with Bluetooth input, 300W x2 and bass and treble controls, for driving stereo speakers; the NS-14G-PRO is the one designed for subwoofer duty.
Yes. Every unit we sell is genuine and brand-new, shipped in its original packaging with a valid serial number, and backed by our 1-year warranty and 45-day returns.
How long does shipping take?
Orders ship within 3 business days, with full tracking. Shipping to the US is free on every order, and most US orders arrive within 7–15 business days — see our shipping policy for details.
What if it isn't for me?
You get 45 days to decide. Keep the packaging, keep it in like-new condition, and send it back for a refund. Ear tips unsealed for hygiene reasons are fine — we expect you to actually listen.
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