Short answer: the Bogasing S8 Pro Max. It ranks #24 of 85 large speakers by sound quality, rated 4.2/5, at $123.49; the Marshall Stockwell III ranks #61, rated 3.0/5, and costs $249.99, so there is little reason to consider the other one.
The case for the Bogasing S8 Pro Max: A true three way stereo design in an aluminium body: a 70mm woofer, two 52mm midrange drivers and two 31mm silk tweeters angled outward, backed by two 80mm passive radiators. The tradeoff: Its tuning is bright: the 3D mode pushes the mids and treble hard, can sound sharp or tiring at higher volumes, and sometimes adds an echo effect to vocals.
What the Marshall Stockwell III does well: 40+ hour battery life with a user-replaceable battery, strap, sleeve and grilles. The tradeoff: Highs are recessed by default and need the treble control maxed to compensate, still lacking detail even then.
Buy the Bogasing S8 Pro Max. It is rated higher for sound quality than the Marshall Stockwell III and costs less, so only choose the other one for a particular feature it does better.
Want more options? Browse the full Portable Bluetooth rankings.
Specifications Side By Side
| Bogasing S8 Pro Max | Marshall Stockwell III | |
|---|---|---|
| Price | $123.49 | $249.99 |
| Ranked | #24 of 85 in Large Size Portable Bluetooth Speakers | #61 of 85 in Large Size Portable Bluetooth Speakers |
| Drivers | 70mm woofer + 2x 52mm midrange + 2x 31mm silk tweeters + 2x 80mm passive radiators | 1x 3” woofer, 2x 1.75” wide-band drivers |
| Amplifier Power | 100W (40W woofer, 2x 20W midrange, 2x 10W tweeters) | 44W |
| Dimensions | 4.3”H x 11.1”W x 2.6”D (110 x 281 x 65 mm) | 7.1” x 6.4” x 2.9” (180 x 162 x 74 mm) |
| Weight | 3.4 lbs (1.55 kg) | 2.9 lbs (1.3 kg) |
| Stereo | Yes | Partially |
| Omnidirectional | No | Yes |
| TWS | Yes | No |
| App | No | Yes |
| EQ | No | Yes (parametric, via app) |
| Bluetooth | Yes | Yes |
| Bluetooth Version | 5.3 | 5.3 |
| Bluetooth Codecs | SBC | SBC, AAC, LE Audio with LC3 |
| Aux Input | Yes | Yes |
| Digital Aux Input | No | No |
| MicroSD Playback | Yes | - |
| USB Playback | Yes | - |
| Built-in Microphone | Yes | - |
| Frequency Response | - | 54Hz - 20kHz (Manufacturer specified) |
| Battery Life | - | 40+ hours (Manufacturer specified) |
| IP Rating | - | IP55 |
| Power Bank | - | Yes |
| Power Input | - | USB-C |
| Strap | - | Yes (detachable strap) |
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- JBL Xtreme 3 vs Bogasing S8 Pro Max
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
Bogasing S8 Pro Max: $123.49 Amazon eBay
Older model: the Bogasing S8 Pro (ranked lower, rated 2.7/5).
Pros: A true three way stereo design in an aluminium body: a 70mm woofer, two 52mm midrange drivers and two 31mm silk tweeters angled outward, backed by two 80mm passive radiators. Its 3D mode throws a noticeably wider soundstage than mono rivals like the Bose SoundLink Plus and JBL Charge 5, and in side by side listening it came across as fuller, punchier and more detailed than both the Charge 5 and the Soundcore Motion X600. Unlike many portables it stays clean at full volume without audible compression or distortion, where the Bose SoundLink Max, Marshall Middleton and Loewe We Hear Pro all strained. Vocal mode is the most neutral preset. Plays FLAC and other lossless files from USB drives and microSD cards, has an aux input and a built-in mic, and two units pair for stereo.
Cons: Its tuning is bright: the 3D mode pushes the mids and treble hard, can sound sharp or tiring at higher volumes, and sometimes adds an echo effect to vocals. Bass is punchy but not especially deep, and the Tribit StormBox Lava, Harman Kardon Go + Play 3 and Loewe We Hear Pro all deliver warmer, fuller low end at moderate volume; the Sony ULT Field 5 also sounded richer at moderate levels. Bass mode is its quietest preset rather than its fullest. There is no app or adjustable EQ, only three fixed sound modes.
Full Bogasing S8 Pro Max review and specifications →
| Amplifier Power | 100W (40W woofer, 2x 20W midrange, 2x 10W tweeters) |
|---|---|
| App | No |
| Aux Input | Yes |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.3 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 4.3”H x 11.1”W x 2.6”D (110 x 281 x 65 mm) |
| Drivers | 70mm woofer + 2x 52mm midrange + 2x 31mm silk tweeters + 2x 80mm passive radiators |
| EQ | No |
| MicroSD Playback | Yes |
| Omnidirectional | No |
| Stereo | Yes |
| TWS | Yes |
| USB Playback | Yes |
| Weight | 3.4 lbs (1.55 kg) |
- Reviews, Comparisons and Sound Samples
- Mateusz Cholewa: BOGASING S8 Pro Max 100W vs JBL Xtreme 4 Audio Test More from Mateusz Cholewa →
- Mateusz Cholewa: BOGASING S8 Pro Max 100W vs BOSE Soundlink MAX
- Mateusz Cholewa: BOGASING S8 Pro MAX KILLER? vs Soundcore Motion X600
- Mateusz Cholewa: JBL Charge 5 vs BOGASING S8 Pro MAX
- Mateusz Cholewa: BOGASING S8 Pro Max „HiFi” vs Harman Kardon Go Play 3 „HiFi”
- Mateusz Cholewa: LOEWE We Hear Pro Super Stereo vs HiFi BOGASING S8 Pro MAX
- Mateusz Cholewa: BOGASING S8 Pro MAX HiFi? vs MARSHALL MIDDLETON
- Mateusz Cholewa: TRIBIT StormBox LAVA Deep Bass vs Bogasing S8 Pro MAX - HiFi?
- Mateusz Cholewa: SONY ULT Field 5 vs BOGASING S8 PRO MAX
- Dominik Reviews: Bose Soundlink Plus vs Bogasing S8 Pro Max - 3D vs Mono! More from Dominik Reviews →
- Mateusz Cholewa: LG XBOOM Bounce vs BOGASING S8 Pro Max
- Head-to-Head Comparisons
- Bogasing S8 Pro Max vs Bose SoundLink Plus
- Bogasing S8 Pro Max vs Teufel Rockster Cross
- Bogasing S8 Pro Max vs Soundcore Rave Neo 2
- Bogasing S8 Pro Max vs Soundcore Motion X500
- Bogasing S8 Pro Max vs Soundcore Motion X600
- Bogasing S8 Pro Max vs JBL Xtreme 3
- Bogasing S8 Pro Max vs Bose SoundLink Max
- Bogasing S8 Pro Max vs Marshall Middleton II
- See all 14 comparisons
Marshall Stockwell III: $249.99 Marshall eBay
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.
Full Marshall Stockwell III review and specifications →
| Amplifier Power | 44W |
|---|---|
| App | Yes |
| Aux Input | Yes |
| Battery Life | 40+ hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC, AAC, LE Audio with LC3 |
| Bluetooth Version | 5.3 |
| Digital Aux Input | No |
| Dimensions | 7.1” x 6.4” x 2.9” (180 x 162 x 74 mm) |
| Drivers | 1x 3” woofer, 2x 1.75” wide-band drivers |
| EQ | Yes (parametric, via app) |
| Frequency Response | 54Hz - 20kHz (Manufacturer specified) |
| IP Rating | IP55 |
| Omnidirectional | Yes |
| Power Bank | Yes |
| Power Input | USB-C |
| Stereo | Partially |
| Strap | Yes (detachable strap) |
| TWS | No |
| Weight | 2.9 lbs (1.3 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
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