Short answer: it depends on how loud you listen. The Marshall Stockwell II may be the most natural sounding Marshall speaker, but it is not very loud. The B&O A1 goes deeper in the bass than the A1 2nd gen at $200 against the Marshall’s $229.99, though it is not quite as neutral as the 2nd gen.

One note: the B&O Beosound A1 is no longer sold new, but at #10 of 179 medium speakers by sound quality it still outranks most current models, so used is worth considering. The B&O Beosound A1’s replacement, the B&O Beosound A1 3rd gen, is rated 4.1/5 at $379.
Buy the B&O Beosound A1 at $200 for a medium speaker, or the Marshall Stockwell II at $229.99 for a large speaker instead.
Water resistance is not close: the B&O Beosound A1 is rated at IP67 (brief submersion), well ahead of the Marshall Stockwell II at IPX4 (splashing).
Looking for alternatives? See the complete Portable Bluetooth rankings.
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Specifications Side By Side
| B&O Beosound A1 | Marshall Stockwell II | |
|---|---|---|
| Price | $200 Discontinued | $229.99 |
| Ranked | #10 of 179 in Medium Size Portable Bluetooth Speakers | #11 of 120 in Large Size Portable Bluetooth Speakers |
| App | Yes | No |
| Aux Input | Yes | Yes |
| Bass Extension (-10dB) | 50Hz | 44Hz |
| Battery Life | 24 hours (Manufacturer specified) | 20 hours (Manufacturer specified) |
| Built-in Microphone | Yes | Yes |
| EQ | Yes | No |
| IP Rating | IP67 | IPX4 |
| Maximum SPL | 99dB (measured by Alan Ross Reviews) | 96dB (measured by Alan Ross Reviews) |
| Power Bank | No | No |
| Stereo | No | No |
| Omnidirectional | Pointing up | Yes |
| Digital Aux Input | Yes (USB-C) | No |
| Weight | 1.3 lbs (589 g) | 3.1 lbs (1.4 kg) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC, AAC | SBC |
| Power Input | USB-C | USB-C |
| Drivers | 15mm tweeter + 83mm mid/bass driver | 3” woofer, 2x 2” fullrange tweeters |
| Amplifier Power | 60W total (30W each driver) | 20W |
| Dimensions | 5.2”W x 5.2”D x 1.9”H (133 x 133 x 48 mm) | 7.1” x 6.3” x 2.8” (180 x 161 x 70 mm) |
| TWS | Yes | No |
| Bluetooth Version | 4.2 | 5.0 |
| Strap | Yes (built-in strap) | Yes (built-in strap) |
| Bluetooth Latency | - | 50ms |
| Party Mode | - | No |
| Frequency Response | - | 60Hz - 20kHz (Manufacturer specified) |
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