Short answer: the W-King D9, though neither ranks well in its class. It ranks #98 of 120 large speakers by sound quality, rated 2.5/5, at $89.98; the Treblab HD-Max ranks #104, rated 2.4/5, and costs $123.47, which makes this an easy call rather than a real tradeoff. Both are rated below 3.0/5 among the 120 large speakers; for better sound, the Tribit Stormbox Lava ranks #3 at $139.99.
The W-King D9 is the deeper-bass, longer-running choice. A compact, punchy boombox with a very long rated battery, water resistance, and power bank output for casual outdoor use. Its bass reaches about 47Hz before falling 10dB, against 60Hz for the Treblab HD-Max. It is rated for 40 hours of battery against 20 for the Treblab HD-Max. The tradeoff: Treble rolls off early, limiting air and fine detail, while owner reports note Bluetooth interference and some noise at maximum speaker volume.
Why pick the Treblab HD-Max: A very loud, well built boombox with a long tested battery, water resistance, and power bank charging. The catch: Boosted upper bass, not much lower bass.
Buy the W-King D9. It is rated higher for sound quality than the Treblab HD-Max and costs less, so it is the default pick unless a specific strength of the other one matters more to you.
Want more options? Browse the full Portable Bluetooth rankings.
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Specifications Side By Side
| W-King D9 | Treblab HD-Max | |
|---|---|---|
| Price | $89.98 | $123.47 |
| Ranked | #98 of 120 in Large Size Portable Bluetooth Speakers | #104 of 120 in Large Size Portable Bluetooth Speakers |
| Aux Input | Yes | Yes |
| Bass Extension (-10dB) | 47Hz | ~60Hz |
| Battery Life | 40 hours (Manufacturer specified) | 20 hours (Manufacturer specified) |
| IP Rating | IPX6 | IPX6 |
| Maximum SPL | 106dB (measured by Alan Ross Reviews) | - |
| MicroSD Playback | Yes | - |
| Power Bank | Yes (USB-A) | Yes (USB-A, 5V) |
| TWS | No | Yes |
| Weight | 4.4 lbs (2.0 kg) | 5.1 lbs (2.3 kg) |
| App | No | No |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | SBC |
| Built-in Microphone | Yes | Yes |
| EQ | No | No |
| Party Mode | No | No |
| Power Input | USB-C | USB-C |
| Stereo | Yes | Yes |
| Omnidirectional | No | No |
| Bluetooth Version | 5.3 | 5.3 |
| Dimensions | 4.7” x 12.4” x 4.7” (120 x 315 x 120 mm) | 12.2” x 5.3” x 5.6” (310 x 135 x 143 mm) |
| Frequency Response | 80Hz - 16kHz (Manufacturer specified) | 30Hz - 16kHz (Manufacturer specified) |
| Amplifier Power | 60W RMS | 60W |
| Drivers | 2x 40mm drivers + passive radiators | 2x 75mm woofers, 2x 30mm tweeters |
| Digital Aux Input | No | No |
| Strap | No | Yes (detachable shoulder strap) |
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