Short answer: the Marshall Kilburn II if sound quality matters most, the W-King T9 if price matters most. The Marshall Kilburn II ranks #36 of 77 large speakers at $279. The W-King T9 ranks #38 at $130, $149 cheaper.
What the Marshall Kilburn II offers: 20W Class D amp + dual 8W tweeters. 20+ hour battery with quick-charge (20 min charges 3 hours of play). Rugged design with leather handle and reinforced corners, IPX2 rated. Thrives with rock music. Bluetooth 5.0 with 30ft range. Watch for: Boosted upper bass, not very detailed, not as deep bass as competitors, upper mids peak. Very low IPX2 water rating. AC charging
What the W-King T9 offers: 80W output power, 106dB max volume, 24-hour battery life, power bank function, Bluetooth 5.3 with 100ft range, TWS stereo pairing with wireless microphone, dual subwoofers, RGB lighting, MicroSD and AUX support, USB-C charging, karaoke capability Watch for: Peaks in the upper mids which makes it sound a bit harsh.
Buy the Marshall Kilburn II if sound quality matters more than the price. Buy the W-King T9 if the price matters more than sound quality.
Specifications Side By Side
| Marshall Kilburn II | W-King T9 | |
|---|---|---|
| Price | $279.00 | $130 |
| Ranked | #36 of 77 in Large Size Portable Bluetooth Speakers | #38 of 77 in Large Size Portable Bluetooth Speakers |
| Aux Input | Yes | Yes |
| Bass Extension (-10dB) | ~58Hz | 47Hz |
| Battery Life | 20 hours (Manufacturer specified) | 24 hours (Manufacturer specified) |
| IP Rating | IPX2 | None |
| Weight | 5.5 lbs / 2.49 kg | 10.1 lbs / 4.6 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) |
| Power Input | USB-C | USB-C |
| Stereo | Yes | Yes |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| Output Power | 36W | 80W |
| Dimensions | 9.6" x 6.4" x 5.5" (243 x 162 x 140 mm) | 11.8" x 5.9" x 4.7" (300 x 150 x 120 mm) |
| Drivers | 1x 4" (102mm) woofer + 2x 20mm dome tweeters | 2x 4.04" subwoofers + drivers |
| Max Volume | 102dB | 106dB |
| Digital Aux Input | No | No |
| MicroSD Playback | - | Yes |
| Bluetooth Version | - | 5.3 |
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Prices on this page were last checked August 27, 2026 at 10:09 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
Marshall Kilburn II: $279.00 Amazon eBay
Pros: 20W Class D amp + dual 8W tweeters. 20+ hour battery with quick-charge (20 min charges 3 hours of play). Rugged design with leather handle and reinforced corners, IPX2 rated. Thrives with rock music. Bluetooth 5.0 with 30ft range.
Cons: Boosted upper bass, not very detailed, not as deep bass as competitors, upper mids peak. Very low IPX2 water rating. AC charging
Full Marshall Kilburn II review and specifications →
| App | No |
|---|---|
| Aux Input | Yes |
| Bass Extension (-10dB) | ~58Hz |
| Battery Life | 20 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC |
| Built in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 9.6" x 6.4" x 5.5" (243 x 162 x 140 mm) |
| Drivers | 1x 4" (102mm) woofer + 2x 20mm dome tweeters |
| EQ | No |
| IP Rating | IPX2 |
| Max Volume | 102dB |
| Omnidirectional | No |
| Output Power | 36W |
| Party Mode | No |
| Power Bank | No |
| Power Input | USB-C |
| Stereo | Yes |
| TWS | Yes |
| Weight | 5.5 lbs / 2.49 kg |
- Reviews, Comparisons and Sound Samples
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W-King T9: $130 Amazon Aliexpress eBay
Pros: 80W output power, 106dB max volume, 24-hour battery life, power bank function, Bluetooth 5.3 with 100ft range, TWS stereo pairing with wireless microphone, dual subwoofers, RGB lighting, MicroSD and AUX support, USB-C charging, karaoke capability
Cons: Peaks in the upper mids which makes it sound a bit harsh.
Full W-King T9 review and specifications →
| App | No |
|---|---|
| Aux Input | Yes |
| Bass Extension (-10dB) | 47Hz |
| Battery Life | 24 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.3 |
| Built in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 11.8" x 5.9" x 4.7" (300 x 150 x 120 mm) |
| Drivers | 2x 4.04" subwoofers + drivers |
| EQ | No |
| IP Rating | None |
| Max Volume | 106dB |
| MicroSD Playback | Yes |
| Omnidirectional | No |
| Output Power | 80W |
| Party Mode | No |
| Power Bank | Yes (USB-A) |
| Power Input | USB-C |
| Stereo | Yes |
| TWS | Yes |
| Weight | 10.1 lbs / 4.6 kg |
- Links
- Reviews, Comparisons and Sound Samples
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- Jay’s Straight Up Reviews & More: W-King T9 🆚 ONN Large Party Speaker -By Request for Big Tee. Can the Smaller T9 Hang With The ONN? More from JaysStraightUpReviews →
- Reddit Search for W-King T9 Review
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