Short answer: the Marshall Stockwell 2. It ranks #11 of 77 large speakers by sound quality at $200; the Ultimate Ears Epicboom ranks #57 and costs $213.41, so there is not much of a tradeoff to weigh.
What the Marshall Stockwell 2 offers: Possibly the most natural sounding Marshall speaker. Excellent off-axis. Watch for: Not stereo. Not very loud. Uses added DSP reverb which audio purists may find annoying.
What the Ultimate Ears Epicboom offers: 17 hour battery with USB-C charging (first UE portable with USB-C). IP67 rating, floats in water. Made mostly from recycled fabric and plastic. Large best-sounding UE portable that still feels portable. 180ft Bluetooth range. Watch for: Not very deep bass for the size. Gets distorted at around 70-80% with bass thuds.
Buy the Marshall Stockwell 2. It ranks higher for sound quality than the Ultimate Ears Epicboom and costs less, so there is no real case for the other one.
There is a real gap in water resistance: the Ultimate Ears Epicboom at IPX7 (brief submersion) against the Marshall Stockwell 2, which has IPX4 (splashing).
Specifications Side By Side
| Marshall Stockwell 2 | Ultimate Ears Epicboom | |
|---|---|---|
| Price | $200 | $213.41 |
| Ranked | #11 of 77 in Large Size Portable Bluetooth Speakers | #57 of 77 in Large Size Portable Bluetooth Speakers |
| Aux Input | Yes | Yes |
| Bass Extension (-10dB) | 44Hz | ~55Hz |
| Battery Life | 20 hours (Manufacturer specified) | 17 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC | SBC |
| IP Rating | IPX4 | IPX7 |
| Bluetooth Latency | 50ms | - |
| Max Volume | 96dB | 94dB |
| Party Mode | No | No |
| Power Input | USB-C | USB-C |
| Stereo | No | Yes |
| Omnidirectional | Yes | No |
| TWS | No | Yes |
| Weight | 3.1 lbs / 1.4 kg | 4.3 lbs / 1.97 kg |
| App | No | No |
| Built in Microphone | Yes | Yes |
| EQ | No | No |
| Power Bank | No | No |
| Bluetooth Version | 5.0 | 5.2 |
| Dimensions | 7.1" x 6.3" x 2.8" (180 x 161 x 70 mm) | 4.7" x 9.5" x 6.4" (119 x 241 x 162 mm) |
| Drivers | 3" woofer, 2x 2" fullrange tweeters | 1x 120mm woofer, 2x 45mm tweeters |
| Frequency Response | 60Hz - 20kHz (Manufacturer specified) | 50Hz - 20kHz (Manufacturer specified) |
| Output Power | 20W | 10W RMS |
| Digital Aux Input | No | No |
Related Speaker Comparisons
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- Soundcore Boom 2 vs Marshall Kilburn II
- JBL Xtreme vs Ultimate Ears Epicboom
- Bose SoundLink Plus vs Ultimate Ears Epicboom
Prices on this page were last checked August 27, 2026 at 10:09 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
Marshall Stockwell 2: $200 Amazon eBay
Pros: Possibly the most natural sounding Marshall speaker. Excellent off-axis.
Cons: Not stereo. Not very loud. Uses added DSP reverb which audio purists may find annoying.
Full Marshall Stockwell 2 review and specifications →
| App | No |
|---|---|
| Aux Input | Yes |
| Bass Extension (-10dB) | 44Hz |
| Battery Life | 20 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC |
| Bluetooth Latency | 50ms |
| Bluetooth Version | 5.0 |
| Built in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 7.1" x 6.3" x 2.8" (180 x 161 x 70 mm) |
| Drivers | 3" woofer, 2x 2" fullrange tweeters |
| EQ | No |
| Frequency Response | 60Hz - 20kHz (Manufacturer specified) |
| IP Rating | IPX4 |
| Max Volume | 96dB |
| Omnidirectional | Yes |
| Output Power | 20W |
| Party Mode | No |
| Power Bank | No |
| Power Input | USB-C |
| Stereo | No |
| TWS | No |
| Weight | 3.1 lbs / 1.4 kg |
- Links
- Reviews, Comparisons and Sound Samples
- Alan Ross Reviews: Marshall Stockwell 2 vs Soundcore Motion Boom and Motion Plus! expensive is better? More from alanrossreviews →
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- Alan Ross Reviews: Marshall Stockwell 2 Review and huge sound test! - vs JBL Charge 5! 💯
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- Reddit Search for Marshall Stockwell 2 Review
- Head-to-Head Comparisons
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Ultimate Ears Epicboom: $213.41 Amazon eBay
Pros: 17 hour battery with USB-C charging (first UE portable with USB-C). IP67 rating, floats in water. Made mostly from recycled fabric and plastic. Large best-sounding UE portable that still feels portable. 180ft Bluetooth range.
Cons: Not very deep bass for the size. Gets distorted at around 70-80% with bass thuds.
Full Ultimate Ears Epicboom review and specifications →
| App | No |
|---|---|
| Aux Input | Yes |
| Bass Extension (-10dB) | ~55Hz |
| Battery Life | 17 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.2 |
| Built in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 4.7" x 9.5" x 6.4" (119 x 241 x 162 mm) |
| Drivers | 1x 120mm woofer, 2x 45mm tweeters |
| EQ | No |
| Frequency Response | 50Hz - 20kHz (Manufacturer specified) |
| IP Rating | IPX7 |
| Max Volume | 94dB |
| Omnidirectional | No |
| Output Power | 10W RMS |
| Party Mode | No |
| Power Bank | No |
| Power Input | USB-C |
| Stereo | Yes |
| TWS | Yes |
| Weight | 4.3 lbs / 1.97 kg |
- Links
- Reviews, Comparisons and Sound Samples
- Jay’s Straight Up Reviews & More: Bass Check 💣 Treblab HD-360, Ultimate Ears EpicBoom, Marshall Middleton & JBL Pulse 5. Boom or Bust? More from JaysStraightUpReviews →
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- Jay’s Straight Up Reviews & More: Bose SoundLink Max vs. Ultimate Ears EpicBoom 🤑Big Bucks No Whammies? 💣 Let’s Find Out 😧
- Reddit Search for Ultimate Ears Epicboom Review
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