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Nobsound NS-14G Bluetooth 2.1 Channel Power Amplifier Review

A compact 2.1-channel TPA3116 power amp with Bluetooth and RCA inputs, a dedicated subwoofer channel, and full tone/subwoofer level controls.

3.53.5 out of 5 starsUpdated October 14, 2026
$99.99Price checked October 14, 2026
Check price at Douk Audio
Nobsound NS-14G Bluetooth 2.1 Channel Power Amplifier

Our verdict

The Nobsound NS-14G is a small 2.1-channel power amplifier for desktop and secondary systems: Bluetooth and RCA in, 50W×2 for stereo speakers plus a 100W subwoofer channel with adjustable crossover. At $99.99 with the 24V supply included, it fits listeners building a compact bookshelf-plus-sub setup without a full-size receiver.

Best for
Desktop and small-room listeners building a compact 2.1 system with bookshelf speakers and a subwoofer.
Skip if
You need to drive large floorstanding speakers at high levels, or your speakers only take bare wire (no banana plugs).
Check price at Douk AudioHow we research

The Nobsound NS-14G, priced at $99.99, is a compact 2.1-channel power amplifier built around a TPA3116 chipset, sized for desktop and home audio systems that pairs stereo speakers with a subwoofer.

Its output is rated at 50W×2 for the left and right channels plus 100W for the subwoofer, supporting 4–8Ω stereo speakers and 2–8Ω subwoofers. Inputs cover Bluetooth for wireless playback from phones, tablets, and computers, plus a stereo RCA input for wired sources like CD players. The front panel carries a full set of adjustments: main volume, treble and bass (±6dB), subwoofer frequency (40–120Hz) and subwoofer volume, and left/right balance, with an input selector to switch between Bluetooth and RCA.

The aluminum case measures 133×125×36mm and weighs 580g, running on DC 15–24V — the package includes a 24V/4.5A power supply and a Bluetooth antenna. Speaker outputs use banana jacks, a detail worth checking against your speaker cable terminations before buying.

Douk Audio, which sells Nobsound gear, ships worldwide with free and expedited options whose cost varies by destination; packages under 2kg typically go via airmail (10-25 days) and heavier ones via DHL, UPS, or FedEx (5-8 days), with import duties the buyer's responsibility. Everything carries a 1-year warranty and a 30-day free return or full-refund policy; mistaken orders, man-made damage or misuse, and subjective change-of-mind cases are excluded.

What we liked

  • Dedicated 2.1-channel design with a separate 100W subwoofer output and adjustable 40–120Hz bass cutoff
  • Bluetooth plus stereo RCA inputs cover phones, tablets, computers, and CD players
  • Controls cover volume, treble, bass, subwoofer frequency and volume, and left/right balance
  • Compact aluminum body (133×125×36mm) with a 24V/4.5A power supply and Bluetooth antenna included

Worth noting

  • 50W×2 plus 100W is desktop-scale power; large or inefficient floorstanding speakers will want more
  • Speaker connections use banana jacks, so bare-wire-only speakers need banana plugs to connect
  • North American buyers may owe import duties on delivery, which are the customer's responsibility per the seller's shipping terms

Questions before you buy

Does it include a power supply?

Yes. The package includes a 24V/4.5A power supply and a Bluetooth antenna, per the packing list.

How do I connect speakers and a subwoofer?

Stereo speakers connect to the L/R banana jacks (4–8Ω) and the subwoofer to its dedicated output (2–8Ω), following the 2.1-channel layout.

What can I adjust on the front panel?

Main volume, treble, bass, subwoofer frequency (40–120Hz) and subwoofer volume, plus left/right channel balance and input selection.

How much power does it deliver?

A maximum of 50W per stereo channel plus 100W for the subwoofer channel, per the listing's specs.

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