Short answer: the Doss Soundbox XL. It ranks #56 of 82 large speakers by sound quality, rated 3.1/5, at $75.99; the W-King D9 ranks #70, rated 2.5/5, at $71.24. The price gap is small enough that the sound-quality ranking should decide it.
What the Doss Soundbox XL does well: 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. The tradeoff: A little hollow sounding.
The case for the W-King D9: A compact 2kg boombox with 60W RMS output, a claimed 106dB maximum level, a measured 47Hz -10dB bass point, IPX6 protection, power-bank output, USB-C charging, aux and microSD playback. The catch: Treble rolls off early, limiting air and fine detail, while owner reports note Bluetooth interference and some noise at maximum speaker volume.
Buy the Doss Soundbox XL. It is rated higher for sound quality, and the $4.75 saving on the W-King D9 is not enough to make up the difference.
There is a real battery-life gap here: the W-King D9 is rated for 40 hours, the Doss Soundbox XL only 10 hours.
Looking for alternatives? See the complete Portable Bluetooth rankings.
Specifications Side By Side
| Doss Soundbox XL | W-King D9 | |
|---|---|---|
| Price | $75.99 | $71.24 |
| Ranked | #56 of 82 in Large Size Portable Bluetooth Speakers | #70 of 82 in Large Size Portable Bluetooth Speakers |
| Aux Input | Yes | Yes |
| Bass Extension (-10dB) | 55Hz | 47Hz |
| Battery Life | 10 hours (Manufacturer specified) | 40 hours (Manufacturer specified) |
| IP Rating | IPX4 | IPX6 |
| Maximum SPL | 100dB (measured by Alan Ross Reviews) | 106dB (measured by Alan Ross Reviews) |
| MicroSD Playback | Yes | Yes |
| Power Input | AC Power brick | USB-C |
| Weight | 1.2 lbs (557 g) | 4.4 lbs (2.0 kg) |
| App | No | No |
| Bluetooth Codecs | SBC | SBC |
| Built-in Microphone | Yes | Yes |
| EQ | No | No |
| Party Mode | No | No |
| Power Bank | No | Yes (USB-A) |
| Stereo | Yes | Yes |
| Omnidirectional | No | No |
| TWS | Yes | No |
| Bluetooth Version | 4.0 | 5.3 |
| Drivers | 1x 76mm subwoofer, 2x 50mm fullrange | 2x 40mm drivers + passive radiators |
| Dimensions | 11.8” x 2.6” x 5.2” (300 x 66 x 132 mm) | 4.7” x 12.4” x 4.7” (120 x 315 x 120 mm) |
| Frequency Response | 40Hz - 20kHz (Manufacturer specified) | 80Hz - 16kHz (Manufacturer specified) |
| Amplifier Power | 32W | 60W RMS |
| Digital Aux Input | No | No |
Related Speaker Comparisons
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Prices on this page were last checked September 26, 2026 at 11:14 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 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
- Head-to-Head Comparisons
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W-King D9: $71.24 Amazon eBay
Pros: A compact 2kg boombox with 60W RMS output, a claimed 106dB maximum level, a measured 47Hz -10dB bass point, IPX6 protection, power-bank output, USB-C charging, aux and microSD playback. Long-term owners praise its loud, punchy character and useful indoor/outdoor voicing for casual outdoor listening. Measured bass extension of 47Hz (-10dB).
Cons: Treble rolls off early, limiting air and fine detail, while owner reports note Bluetooth interference and some noise at maximum speaker volume. There is no app or adjustable EQ, and its bass does not reach as deep as larger rivals, so it is better suited to energetic background music than neutral listening.
Full W-King D9 review and specifications →
| Amplifier Power | 60W RMS |
|---|---|
| App | No |
| Aux Input | Yes |
| Bass Extension (-10dB) | 47Hz |
| Battery Life | 40 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.3 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 4.7” x 12.4” x 4.7” (120 x 315 x 120 mm) |
| Drivers | 2x 40mm drivers + passive radiators |
| EQ | No |
| Frequency Response | 80Hz - 16kHz (Manufacturer specified) |
| IP Rating | IPX6 |
| Maximum SPL | 106dB (measured by Alan Ross Reviews) |
| MicroSD Playback | Yes |
| Omnidirectional | No |
| Party Mode | No |
| Power Bank | Yes (USB-A) |
| Power Input | USB-C |
| Stereo | Yes |
| TWS | No |
| Weight | 4.4 lbs (2.0 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons