Nobsound G3 Bluetooth Amplifier with Tone Control Review

The Nobsound G3 is a mini Bluetooth digital amplifier priced at $49.99. It packs a high-performance TPA3116 chip delivering 55W x 2, enough to drive most bookshelf and desktop speakers, making it an affordable upgrade for a home audio system.

Connectivity covers both worlds: Bluetooth 5.0 for wireless streaming with wide device compatibility - smartphones, tablets, PCs, TVs, CD players - and a wired RCA input, with a dedicated reset button for quick Bluetooth reconnection. The Pre-Out expands the system further: by connecting an active subwoofer or powered speakers, you can build a 2.1 channel setup and enjoy deeper bass without complicated wiring or extra gear. One caveat from Douk Audio: the banana speaker jacks and Pre-Out work simultaneously, and the volume, bass and treble adjustments apply to both outputs at the same time, so the sub cannot be trimmed separately.

Independent bass and treble controls let you add low-end warmth or vocal and high-frequency clarity to suit any music style or room. An easy-to-use select knob switches inputs, and an LED indicator shows the active input mode. Listed performance is 0.1% THD+N, 86dB or better SNR and a 20Hz-20kHz response within +/-1.5dB, running on DC 12-24V. The compact 90 x 105 x 30mm chassis fits home theater, desktop or small-space setups, and the box includes the Bluetooth antenna, a DC 19V power adapter and a user manual. There is no headphone output, so headphone listening needs a separate amp.

Specifications

How it compares

At the same $49.99, the Nobsound NS-15G TPA3116 Amplifier 100W+100W review lists two TPA3116D2 chips rated 100W+100W above 24V at 8A, plus or minus 10dB tone control with bypass, Bluetooth 5.0 and RCA, with THD of 0.01% or less and SNR of 98dB or better, against the G3's 0.1% THD+N and 86dB. It has no pre-out and its 19V adapter is an option, while the G3 ships an adapter and adds a 1.8V Pre-Out for an active subwoofer. Choose the G3 if a sub output matters; choose the NS-15G if power and the printed figures matter more.

Cheaper and plainer options: the Nobsound NS-06G TPA3116 Class D Amplifier review ($42.99, $7.00 less) shares the G3's 90 x 105 x 30mm footprint and a TPA3116 chip rated 60W x 2, with RCA only and no Bluetooth, tone knobs or pre-out on its page, but it prints 0.04% THD+N and an SNR of 101dB or better. The Nobsound TONE Mini Bluetooth Stereo Amplifier review ($39.99) pairs Bluetooth with AUX (no RCA), 50W x 2 into 4 ohms, 0.03% THD+N and an SNR of 93dB or better, in a 78 x 70 x 32mm case. Of the three, the G3 is the one to take when you want RCA, Bluetooth, tone controls and a pre-out in one small amplifier.

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.