Short answer: both are discontinued, so this only matters if you are buying used, though neither ranks well in its class. Used, the Diamondboxx M3 is the better pick: it ranks #77 of 113 boombox speakers by sound quality (rated 2.8/5), against #110 (rated 2.0/5) for the Artsound PWR05. Both are rated below 3.0/5 among the 113 boombox speakers, and the Tribit Stormbox Blast, ranked #2 at $199.99, is a better place to start if sound quality matters.
The Diamondboxx M3 is the better-sounding, longer-running pick. A compact, very loud boombox with a powerful amplifier and a choice of large battery packs. It is rated for 40 hours of battery against 10 for the Artsound PWR05. Watch for: Despite its output, bass does not reach as deep as the best large portables and can distort when pushed hard.
The Artsound PWR05 is the tougher pick. A rugged boombox with a leather carrying strap, aux input and wireless pairing of two units. It is rated IPX5, while the Diamondboxx M3 has no water resistance. The catch: Strange frequency peaks, sound is very hollow.
Buy the Diamondboxx M3 only if you find one used in good condition; both are discontinued, and it is the better rated of the two. For a new speaker, start with the Tribit Stormbox Blast instead.
Want more options? Browse the full Portable Bluetooth rankings.
Prices on this page were last checked November 14, 2026 at 6:17 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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Specifications Side By Side
| Diamondboxx M3 | Artsound PWR05 | |
|---|---|---|
| Price | $700 Discontinued | $799 Discontinued |
| Ranked | #77 of 113 in Boombox Size Portable Bluetooth Speakers | #110 of 113 in Boombox Size Portable Bluetooth Speakers |
| Bluetooth Version | 5.0 | - |
| Aux Input | Yes | Yes |
| Battery Life | 40 hours (Manufacturer specified) | 10 hours (Manufacturer specified) |
| IP Rating | None | IPX5 |
| Stereo | Yes | Partially |
| Omnidirectional | No | No |
| Weight | 11 lbs (5 kg) | 9.7 lbs (4.4 kg) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | SBC |
| App | No | No |
| EQ | No | No |
| TWS | Yes | No |
| Party Mode | No | No |
| Power Bank | No | No |
| USB Playback | No | No |
| Built-in Microphone | No | No |
| Power Input | USB-C | USB-C |
| FM Tuner | No | - |
| Amplifier Power | 200W RMS / 400W peak | 75W RMS / 150W peak |
| Dimensions | 14.7” x 9” x 8” (373.4 x 228.6 x 203.2 mm) | 16.9” x 7.1” x 7.1” (430 x 180 x 180 mm) |
| Drivers | 3” woofer + tweeter array | 5” woofer + tweeter |
| Digital Aux Input | No | No |
| Strap | - | Yes (carry strap) |
Where the Ratings Come From
- Diamondboxx M3: manufacturer specifications and listening comparisons; no independent measurement has been published yet.
- Artsound PWR05: manufacturer specifications and listening comparisons; no independent measurement has been published yet.
This comparison is generated from the ratings, specifications and measurements on each product’s own page, and it updates when that data changes. How we rank explains how each rating is decided.
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