Short answer: the W-King D9, though neither ranks well in its class. It ranks #70 of 82 large speakers by sound quality, rated 2.5/5, at $71.24; the Doss Extreme Boom ranks #80, rated 2.1/5, and costs $79.99, so there is not much of a tradeoff to weigh. Both are rated below 3.0/5 among the 82 large speakers, and the Soundcore Boom 2, ranked #10 at $89.98, is a better place to start if sound quality matters.
What the W-King D9 does well: 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 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 Doss Extreme Boom: A durable 2.52kg outdoor speaker with claimed 60W output, IPX7 protection, USB-C charging, aux and microSD playback, speakerphone capability, a power bank and TWS pairing. The catch: The measured 65Hz -10dB bass point means it lacks true low bass despite its boomy voicing.
Buy the W-King D9. It is rated higher for sound quality than the Doss Extreme Boom and costs less, so only choose the other one for a particular feature it does better.
Looking for alternatives? See the complete Portable Bluetooth rankings.
Specifications Side By Side
| W-King D9 | Doss Extreme Boom | |
|---|---|---|
| Price | $71.24 | $79.99 |
| Ranked | #70 of 82 in Large Size Portable Bluetooth Speakers | #80 of 82 in Large Size Portable Bluetooth Speakers |
| Aux Input | Yes | Yes |
| Bass Extension (-10dB) | 47Hz | 65Hz |
| Battery Life | 40 hours (Manufacturer specified) | 30 hours (Manufacturer specified) |
| IP Rating | IPX6 | IPX7 |
| Maximum SPL | 106dB (measured by Alan Ross Reviews) | - |
| MicroSD Playback | Yes | Yes |
| Power Bank | Yes (USB-A) | Yes (USB-A) |
| TWS | No | Yes |
| Weight | 4.4 lbs (2.0 kg) | 5.6 lbs (2.52 kg) |
| App | No | No |
| 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) | 12.7” x 4.7” x 7.2” (323 x 120 x 184 mm) |
| Frequency Response | 80Hz - 16kHz (Manufacturer specified) | - |
| Amplifier Power | 60W RMS | 60W |
| Drivers | 2x 40mm drivers + passive radiators | 60W: Dual drivers + passive radiator |
| Digital Aux Input | No | No |
Related Speaker Comparisons
How W-King D9 compares with other leading options:
- W-King D9 vs Vifa Helsinki
- JBL Xtreme 5 vs W-King D9
- Tribit Stormbox Lava vs W-King D9
- W-King D9 vs Brane X
- W-King D9 vs Minirig 4 with subwoofer
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
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
Doss Extreme Boom: $79.99 Amazon eBay
Pros: A durable 2.52kg outdoor speaker with claimed 60W output, IPX7 protection, USB-C charging, aux and microSD playback, speakerphone capability, a power bank and TWS pairing. It offers long claimed battery life and can play loudly enough for a casual party, with a bass-heavy sound that carries outdoors. Measured bass extension of 65Hz (-10dB).
Cons: The measured 65Hz -10dB bass point means it lacks true low bass despite its boomy voicing. Reviews describe fuzzy mids, mushy bass when pushed and rolled-off treble, while there is no app or EQ to restore balance. It is best for loud background music, not clear or refined listening.
Full Doss Extreme Boom review and specifications →
| Amplifier Power | 60W |
|---|---|
| App | No |
| Aux Input | Yes |
| Bass Extension (-10dB) | 65Hz |
| Battery Life | 30 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.3 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 12.7” x 4.7” x 7.2” (323 x 120 x 184 mm) |
| Drivers | 60W: Dual drivers + passive radiator |
| EQ | No |
| IP Rating | IPX7 |
| MicroSD Playback | Yes |
| Omnidirectional | No |
| Party Mode | No |
| Power Bank | Yes (USB-A) |
| Power Input | USB-C |
| Stereo | Yes |
| TWS | Yes |
| Weight | 5.6 lbs (2.52 kg) |
- Links
- 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.
- Head-to-Head Comparisons
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- Doss Extreme Boom vs LG Xboom XG7
- Doss Extreme Boom vs Soundcore Rave Neo
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