Nobsound NS-10G PRO Bluetooth Amplifier DSP Review

The Nobsound NS-10G PRO is a mini Bluetooth digital amplifier priced at $32.00, and it is the newest update of the popular NS-10G, repositioned for better performance and purer hi-fi sound. Its footprint is tiny at 78 x 70 x 23mm, small enough to hold in one hand, and it weighs 240g without the power supply.

The upgrade centers on power and purity. Where previous mini amps asked a lot of modest chips, the NS-10G PRO uses a Texas Instruments TPA3221 rated at 100W x 2, which Douk Audio says will amaze relative to its size. To keep the circuit clean, the design removes unnecessary functions like the volume control, shortening the signal trace and eliminating the noise floor entirely. Bluetooth moves to 5.0 with EDR and DSP, improving both sound quality and distance, now 15m rather than the older version's 10m. A useful side effect: the upgrade version also drops the prompt tone for quieter operation.

Connections are Bluetooth and AUX in, with upgraded gold-plated copper binding posts for the speakers to resist corrosion and maintain transmission quality over time. Compatibility spans smartphones, TVs, iPods, iPhones, iPads, computers, tablets, CD players and MP3 players, with one exception: the amp is not suited for calls. The unit runs on DC 9V-24V at 3A or above, with a 12V/5A power supply available as an option, and comes in black, silver, gold, blue or red.

Specifications

How it compares

The NS-10G PRO's review price of $32.00 is the Without Power Supply option; with a power supply it costs $39.99. The Nobsound NS-01G MAX ($39.99) uses the same TPA3221 chip and a 100W+100W headline, but its page quotes that under 24V at 8A and gives 30W+30W as the output with the default 19V adapter; it adds a volume control, a 3.5mm PRE OUT and Bluetooth 5.0 at 10-15 meters. The Nobsound TA-21 ($46.99) also uses a TPA3221 with Bluetooth 5.0, DSP and an AUX input, with button volume and a volume display, and its page lists a minimum input power of 50W. The Nobsound NS-10G ($29.99 without a supply, $39.99 with one) is the TPA3116 sibling: 50W x 2, with a USB input and a bass button.

Who it suits: the NS-10G PRO fits a minimalist desk that sets volume at the source and wants the 100W x 2 rating in a very small case, at $32.00 if you already own a DC 9-24V supply of 3A or more. The NS-01G MAX and TA-21 add a way to set the volume on the amp, and the NS-10G adds USB.

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.