Nobsound NS-14G Bluetooth 2.1 Channel Amplifier Review

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.

Specifications

How it compares

The NS-14G's selling point is its own subwoofer channel: the page lists 100W for a 2-8 ohm subwoofer, a 40-120Hz cutoff and separate sub level control. The Douk Audio NS-14G PRO TPA3255 Amplifier review ($134.99, $35.00 more) lists two TPA3255 chips with a headline of 300W per L/R channel plus 300W for the sub (its own table gives 120W + 120W and 270W at 4 ohms on the included 48V/5A adapter), a 50Hz-220Hz cutoff, Bluetooth with aptX and aptX HD, and printed figures of 0.01% THD+N and an SNR of 108dB or better, against the NS-14G's 0.07% and 92dB; the NS-14G comes with a 24V/4.5A supply.

For a cheaper stereo-plus-sub route, the Douk Audio M1 PRO Bluetooth Amplifier 160W review ($79.99, $20.00 less) rates 160W x 2 into 4 ohms with Bluetooth 5.0, RCA and U-disk inputs and a low-frequency output that its page says is for active subwoofers, where the NS-14G page lists an amplified 100W subwoofer channel. At the other end, the Nobsound M5.1 5.1 Channel Home Theatre Amp review ($169.99) adds surround channels and optical and coaxial inputs. The NS-14G suits a desk or small room with bookshelf speakers and one subwoofer; skip it for large floorstanding speakers.

Shipping, returns and warranty

• Shipping: Douk Audio's current shipping page says orders are generally processed no later than the next business day and arrive in 2-8 business days, with duties, taxes and customs fees included in the checkout price unless noted otherwise.
• Older shipping terms are still online: airmail at 10-25 days for parcels under 2 kg, DHL, UPS or FedEx at 5-8 days above that, and a line saying the store is not responsible for import duties. Check the delivery estimate and any duties at checkout.
• Returns: ask within 30 days of delivery and wait for approval before sending anything; an approved return has to ship within 7 days. Items need all packaging and accessories and no excessive wear, or the store can refuse them or refund part of the price. Refunds go to the original payment method after inspection.
• Not refunded: original and expedited shipping, duties, taxes and customs charges, unless the law requires it or the store made the error. The return page does not say who pays return postage, and the older refund page excludes mistaken orders and change-of-mind returns from free after-sale service.
• Warranty: 24 months from purchase for manufacturing defects, with free repair, a replacement unit and free shipping both ways for covered repairs. Drops, liquid, DIY repairs, lightning, extreme temperatures and misuse are excluded (partial fees may apply), and damage from weak packing on the way back may not be covered. The older refund page still says 1 year.
• Seller: the site is run by Shenzhen Anba Technology Co., Ltd (Shenzhen, China) and HONGKONG LONGSHENG Import and Export Trading Co., Limited (Hong Kong); support is by email at [email protected]. These terms cover orders placed on doukaudio.com; other sellers apply their own.

For this product, the page lists US, UK, EU, AU and Other under 'Shipping to' and shows Free Shipping, 2-8 Days Arrival, 30-Day Return and 2-Year Warranty badges near the price.