Tronsmart Bang 2 vs Marshall Stockwell III

Last updated: September 30, 2026

Short answer: the Tronsmart Bang 2. It ranks #45 of 85 large speakers by sound quality, rated 3.6/5, at $109.99; the Marshall Stockwell III ranks #61, rated 3.0/5, and costs $249.99, which makes this an easy call rather than a real tradeoff.

Tronsmart Bang 2 vs Marshall Stockwell III

What the Tronsmart Bang 2 does well: In Jagist’s side by side tests, the Bang 2 (after its firmware update) was picked over the Soundcore Boom 2 and over the JBL Xtreme 5, which distorted at high volume, and it kept its bass above 40% volume where the Tribit Stormbox Lava fell apart. Watch for: Verdicts against the Boom 2 and the Lava were split: Dominik Reviews preferred the Boom 2, and several listeners found the Bang 2’s mids muffled and its highs subdued without custom EQ.

What the Marshall Stockwell III does well: 40+ hour battery life with a user-replaceable battery, strap, sleeve and grilles. Watch for: Highs are recessed by default and need the treble control maxed to compensate, still lacking detail even then.

Buy the Tronsmart Bang 2. It is rated higher for sound quality than the Marshall Stockwell III and costs less, so it is the default pick unless a specific strength of the other one matters more to you.

Want more options? Browse the full Portable Bluetooth rankings.

Specifications Side By Side

Tronsmart Bang 2 Marshall Stockwell III
Price$109.99$249.99
Ranked#45 of 85 in Large Size Portable Bluetooth Speakers#61 of 85 in Large Size Portable Bluetooth Speakers
Amplifier Power90W44W
AppYes (Tronsmart)Yes
Aux InputYesYes
Battery Life26 hours at 50% volume, lights off (Manufacturer specified)40+ hours (Manufacturer specified)
BluetoothYesYes
Bluetooth CodecsSBCSBC, AAC, LE Audio with LC3
Bluetooth Version5.35.3
Charging Time4.5 hours-
Dimensions8.2”H x 15.3”W x 6.2”D (208 x 389 x 158 mm)7.1” x 6.4” x 2.9” (180 x 162 x 74 mm)
Drivers1x racetrack mid-woofer + 2x tweeters + 2x passive radiators1x 3” woofer, 2x 1.75” wide-band drivers
EQYes (app)Yes (parametric, via app)
Frequency Response53Hz - 20kHz (Manufacturer specified)54Hz - 20kHz (Manufacturer specified)
IP RatingIPX6IP55
LightsYes-
Maximum SPL105dB (Manufacturer specified)-
MicroSD PlaybackYes-
OmnidirectionalNoYes
Party ModeYes (multi-speaker pairing)-
Power BankYes (USB-C)Yes
Power InputUSB-CUSB-C
StereoPartiallyPartially
StrapYes (detachable shoulder strap)Yes (detachable strap)
TWSYesNo
USB PlaybackYes-
Weight5.8 lbs (2.63 kg)2.9 lbs (1.3 kg)
Digital Aux Input-No

More top alternatives to Tronsmart Bang 2:

Prices on this page were last checked September 30, 2026 at 2:57 PM UTC. Product prices and availability are accurate as of that date/time and are subject to change; the price and availability shown on Amazon at the time of purchase will apply to the purchase of this product.

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The Two Speakers In Full

Tronsmart Bang 2: $109.99 Best Buy Tronsmart eBay

Tronsmart Bang 2 ranking card

Pros: In Jagist’s side by side tests, the Bang 2 (after its firmware update) was picked over the Soundcore Boom 2 and over the JBL Xtreme 5, which distorted at high volume, and it kept its bass above 40% volume where the Tribit Stormbox Lava fell apart. Listeners also mostly preferred it to the JBL Xtreme 4. A racetrack woofer, two tweeters and two passive radiators are rated for 90W and 105dB. Tronsmart rates the battery at 26 hours at half volume with the lights off, and it adds IPX6 water resistance, a handle plus a detachable shoulder strap, app EQ, light effects, stereo and multi-speaker pairing, aux, TF card and USB playback, and a USB-C power bank.

Cons: Verdicts against the Boom 2 and the Lava were split: Dominik Reviews preferred the Boom 2, and several listeners found the Bang 2’s mids muffled and its highs subdued without custom EQ. Next to the Tronsmart Fiitune X30 it turned into a jumble of sound near full volume, and the EarFun UBoom X clearly beat it. It needed a firmware update to sound its best, and at 2.63 kg it is heavy for its size.

Amplifier Power90W
AppYes (Tronsmart)
Aux InputYes
Battery Life26 hours at 50% volume, lights off (Manufacturer specified)
BluetoothYes
Bluetooth CodecsSBC
Bluetooth Version5.3
Charging Time4.5 hours
Dimensions8.2”H x 15.3”W x 6.2”D (208 x 389 x 158 mm)
Drivers1x racetrack mid-woofer + 2x tweeters + 2x passive radiators
EQYes (app)
Frequency Response53Hz - 20kHz (Manufacturer specified)
IP RatingIPX6
LightsYes
Maximum SPL105dB (Manufacturer specified)
MicroSD PlaybackYes
OmnidirectionalNo
Party ModeYes (multi-speaker pairing)
Power BankYes (USB-C)
Power InputUSB-C
StereoPartially
StrapYes (detachable shoulder strap)
TWSYes
USB PlaybackYes
Weight5.8 lbs (2.63 kg)

Marshall Stockwell III: $249.99 Marshall eBay

Marshall Stockwell III ranking card

Older model: the Marshall Stockwell II (ranked higher, rated 4.5/5).

Pros: 40+ hour battery life with a user-replaceable battery, strap, sleeve and grilles. Doubles as a USB-C power bank. IP55 dust/water resistance. App includes parametric EQ, a Soundstage widening control, and wall/corner placement compensation. Endless-rotation control knobs.

Cons: Highs are recessed by default and need the treble control maxed to compensate, still lacking detail even then. Bass tends to sound resonant and boomy, with reported frequency cancellation and phase issues on complex material that EQ doesn’t fully resolve. Oluv’s A/B testing against the outgoing Stockwell II finds the default tuning muffled and muddy enough to prefer the seven-year-old original out of the box, and output loses dynamics and bass while turning harsh well below maximum volume. No aptX support.

Amplifier Power44W
AppYes
Aux InputYes
Battery Life40+ hours (Manufacturer specified)
BluetoothYes
Bluetooth CodecsSBC, AAC, LE Audio with LC3
Bluetooth Version5.3
Digital Aux InputNo
Dimensions7.1” x 6.4” x 2.9” (180 x 162 x 74 mm)
Drivers1x 3” woofer, 2x 1.75” wide-band drivers
EQYes (parametric, via app)
Frequency Response54Hz - 20kHz (Manufacturer specified)
IP RatingIP55
OmnidirectionalYes
Power BankYes
Power InputUSB-C
StereoPartially
StrapYes (detachable strap)
TWSNo
Weight2.9 lbs (1.3 kg)