Short answer: the Soundcore Boom 2. It ranks #10 of 120 large speakers by sound quality; the W-King T9 ranks #53 and costs $11.24 more, so there isn’t much of a tradeoff to weigh here.
The T9’s cons are more audible than the Boom 2’s. The T9’s own cons describe peaks in the upper mids that make it sound a bit harsh, a tonal flaw with no EQ on board to fix it (the T9 has no app and no EQ at all). The Boom 2 ships with its own issues too, including a bright treble tuning around +5dB and inconsistent bass at low volume, but its cons note that with Oluv’s or Alan Ross’s EQ presets applied, it corrects to a meaningfully higher-ranking sound; stock tuning alone would only put it around the middle of the pack.
There’s a real gap in water resistance. The Boom 2 is rated IPX7 for brief submersion, while the T9 has no water resistance rating at all, worth knowing if either speaker is headed to a pool or beach.
What the W-King T9 adds: an aux input, a built-in microphone, MicroSD playback, and true stereo output from its dual 4.04-inch subwoofer array, none of which the Boom 2 offers in the same form (the Boom 2 is stereo only for its tweeters, with a single midrange driver).
Everything else matches: both hit 47Hz bass extension at -10dB, run 80W output, offer 24-hour battery life with USB-A power bank output, and use Bluetooth 5.3.
Buy the Soundcore Boom 2 for the better out-of-the-box value and the deeper water resistance, especially once you apply a correction EQ.
Buy the W-King T9 only if you specifically want its true stereo layout, aux input, or MicroSD playback and can tolerate the harsher upper-mid tuning.
Still deciding? The full Portable Bluetooth rankings cover every ranked option.
Prices on this page were last checked November 7, 2026 at 7:34 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
| Soundcore Boom 2 | W-King T9 | |
|---|---|---|
| Price | $99.99 | $111.23 |
| Ranked | #10 of 120 in Large Size Portable Bluetooth Speakers | #53 of 120 in Large Size Portable Bluetooth Speakers |
| App | Yes | No |
| Aux Input | No | Yes |
| Bass Extension (-10dB) | 47Hz | 47Hz |
| Battery Life | 24 hours (Manufacturer specified) | 24 hours (Manufacturer specified) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | SBC |
| Built-in Microphone | No | Yes |
| EQ | Yes | No |
| IP Rating | IPX7 | None |
| Bluetooth Latency | 125ms | - |
| Maximum SPL | 105dB (measured by Alan Ross Reviews) | 106dB (measured by Alan Ross Reviews) |
| MicroSD Playback | No | Yes |
| Party Mode | Yes (PartyCast 2.0 up to 100 speakers) | No |
| Power Bank | Yes (USB-A) | Yes (USB-A) |
| Power Input | USB-C | USB-C |
| Stereo | Partially (1 woofer) | Yes |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| Weight | 3.7 lbs (1.68 kg) | 10.1 lbs (4.6 kg) |
| Bluetooth Version | 5.3 | 5.3 |
| Dimensions | 11.7” x 7.3” x 4” (297 x 185 x 102 mm) | 11.8” x 5.9” x 4.7” (300 x 150 x 120 mm) |
| Drivers | 120mm x 90mm woofer, 2x 20mm tweeters | 2x 4.04” subwoofers + drivers |
| Frequency Response | 45Hz - 20kHz (Manufacturer specified) | - |
| Amplifier Power | 80W | 80W |
| Digital Aux Input | No | No |
| Lights | Yes | Yes |
| Strap | No | No |
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