Nobsound NS-01G PRO Amplifier 50W x 2 Review

The Nobsound NS-01G PRO is a mini Bluetooth amplifier priced at $31.99 and aimed at home and desktop audio systems. It is a compact stereo class-D amp built around the long-running TPA3116 chip.

Its inputs cover Bluetooth 5.0, USB and 3.5mm AUX, which the listing says makes it compatible with most common audio devices: phones, tablets, computers, TVs, CD players, decoders and preamps. The Bluetooth 5.0 connection is described as faster and more stable than earlier versions, while the USB input is plug and play with no driver needed. Speaker output is through banana jacks, matched to 4-8Ω speakers, and the rated power is 50W x 2 with a claimed total of 100W, which the maker says will drive most home speakers while staying free of audible noise even at high output.

The amplifier runs on DC 9V-24V, and the power supply is listed as optional, so it is sold both on its own and as a bundle. The case is aluminium and measures just 78 x 70 x 38mm, weighing 154g, and it is available in black, silver, gold, blue or red. The package includes the amplifier, an AUX cable, a USB cable, an RCA audio cable and a manual, plus the power supply if you select the version with one.

Specifications

How it compares

USB input is the NS-01G PRO's edge over the NS-01G MAX and TONE pages, which list only Bluetooth and AUX. Its closest sibling is the Nobsound NS-10G Bluetooth Amplifier 50W+50W review ($29.99 is its Without Power Supply option; its page opens on With Power Supply at $39.99): the same TPA3116 at 50W x 2 with Bluetooth 5.0 + EDR, USB and AUX in a smaller 80 x 53 x 22mm, 105g case, plus a bass boost button. The Nobsound NS-01G MAX Amplifier 100W+100W review ($39.99) swaps USB for a PRE OUT and a TPA3221 chip rated up to 100W+100W under 24V at 8A, and is 23mm high against 38mm here.

At $39.99, the With Power Supply option the page opens on, the NS-01G PRO sits level with the NS-01G MAX and the Nobsound TONE Mini Bluetooth Stereo Amplifier review ($39.99: 50W x 2 into 4 ohms, Bluetooth and AUX, a 19V adapter in the box, 0.03% THD+N and an SNR of 93dB or better). The review's $31.99 is the Without Power Supply option: it undercuts both by $8.00 but leaves out the supply, so you need a DC 9V-24V one of your own. The NS-01G PRO suits a desk where a USB feed from a computer matters and the speakers are small; skip it if you want tone controls, a sub output or a headphone jack.

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, while its feature text promises 30 days returning service, 3 months replacement service and a 1 year warranty.