Short answer: neither is a bass champion, so pick on features. The Doss Soundbox XL brings 32W, a 100dB max volume rating, a 10-hour battery, IPX4 splashproofing, a MicroSD slot, dual woofers with a subwoofer and TWS pairing, but our notes call it a little hollow sounding. The Ultimate Ears Megablast adds Alexa over Wi-Fi and Bluetooth, and its bass is not very deep compared to the competition. They are $164.01 apart.
Buy the Doss Soundbox XL. It is rated higher for sound quality, and the Ultimate Ears Megablast is discontinued, so it is only available used.
There is a real gap in water resistance: the Ultimate Ears Megablast at IPX7 (brief submersion) against the Doss Soundbox XL, which has IPX4 (splashing).
Looking for alternatives? See the complete Portable Bluetooth rankings.
Specifications Side By Side
| Doss Soundbox XL | Ultimate Ears Megablast | |
|---|---|---|
| Price | $75.99 | $240 Discontinued |
| Ranked | #65 of 93 in Large Size Portable Bluetooth Speakers | #77 of 93 in Large Size Portable Bluetooth Speakers |
| Aux Input | Yes | Yes |
| Bass Extension (-10dB) | 55Hz | 64Hz |
| Battery Life | 10 hours (Manufacturer specified) | 16 hours (Manufacturer specified) |
| IP Rating | IPX4 | IPX7 |
| Maximum SPL | 100dB (measured by Alan Ross Reviews) | - |
| MicroSD Playback | Yes | - |
| Power Input | AC Power brick | USB-C |
| Weight | 1.2 lbs (557 g) | 2.4 lbs (1.1 kg) |
| App | No | No |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | SBC |
| Built-in Microphone | Yes | Yes |
| EQ | No | No |
| Party Mode | No | No |
| Power Bank | No | No |
| Stereo | Yes | Yes |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| Bluetooth Version | 4.0 | 4.2 |
| Drivers | 1x 76mm subwoofer, 2x 50mm fullrange | 2x 55mm fullrange, 2x 25mm tweeters |
| Dimensions | 11.8” x 2.6” x 5.2” (300 x 66 x 132 mm) | 9.3” x 3.5” (236.2 x 88.9 mm) (height x diameter) |
| Frequency Response | 40Hz - 20kHz (Manufacturer specified) | 60Hz - 20kHz (Manufacturer specified) |
| Amplifier Power | 32W | - |
| Digital Aux Input | No | No |
| Wi-Fi | - | Yes |
| Voice Assistants | - | Amazon Alexa |
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Prices on this page were last checked October 2, 2026 at 10:18 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
Doss Soundbox XL: $75.99 Amazon eBay
Pros: 32W output power, 100dB max volume, 10-hour battery life, IPX4 splashproof, MicroSD card slot, dual woofer setup with subwoofer, built-in microphone, TWS pairing support. Measured bass extension of 55Hz (-10dB).
Cons: A little hollow sounding.
Full Doss Soundbox XL review and specifications →
| Amplifier Power | 32W |
|---|---|
| App | No |
| Aux Input | Yes |
| Bass Extension (-10dB) | 55Hz |
| Battery Life | 10 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 4.0 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 11.8” x 2.6” x 5.2” (300 x 66 x 132 mm) |
| Drivers | 1x 76mm subwoofer, 2x 50mm fullrange |
| EQ | No |
| Frequency Response | 40Hz - 20kHz (Manufacturer specified) |
| IP Rating | IPX4 |
| Maximum SPL | 100dB (measured by Alan Ross Reviews) |
| MicroSD Playback | Yes |
| Omnidirectional | No |
| Party Mode | No |
| Power Bank | No |
| Power Input | AC Power brick |
| Stereo | Yes |
| TWS | Yes |
| Weight | 1.2 lbs (557 g) |
- Links
- Reviews, Comparisons and Sound Samples
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Ultimate Ears Megablast: $240 Discontinued eBay
Pros: Alexa integration (Wi-Fi + Bluetooth). 93dB loudest in UE lineup, 40% louder than Megaboom. IP67 waterproof and drop-proof. 16 hour battery. Party mode connects up to 8 speakers. Can use while charging to keep Alexa on 24/7. Measured bass extension of 64Hz (-10dB).
Cons: Bass is not very deep compared to the competition. Discontinued.
Full Ultimate Ears Megablast review and specifications →
| App | No |
|---|---|
| Aux Input | Yes |
| Bass Extension (-10dB) | 64Hz |
| Battery Life | 16 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 4.2 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 9.3” x 3.5” (236.2 x 88.9 mm) (height x diameter) |
| Drivers | 2x 55mm fullrange, 2x 25mm tweeters |
| EQ | No |
| Frequency Response | 60Hz - 20kHz (Manufacturer specified) |
| IP Rating | IPX7 |
| Omnidirectional | No |
| Party Mode | No |
| Power Bank | No |
| Power Input | USB-C |
| Stereo | Yes |
| TWS | Yes |
| Voice Assistants | Amazon Alexa |
| Weight | 2.4 lbs (1.1 kg) |
| Wi-Fi | Yes |
- Reviews, Comparisons and Sound Samples
- No independent measurement review is linked for this model; it is ranked from hands-on listening and comparison against similarly priced speakers.
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