Short answer: the W-King D8 is decent, and the Kilburn II’s flaws are worse documented. The D8 sounds decent, though its mids are slightly recessed and it distorts at high volumes. The Kilburn II adds a 20W Class D amp, dual 8W tweeters and 20+ hours of battery, but has boosted upper bass, limited detail, shallower bass, an upper mids peak, IPX2 water resistance and AC charging.
Buy the Marshall Kilburn II if sound quality matters more than the price. Buy the W-King D8 if the price matters more than sound quality.
Water resistance is not close: the W-King D8 is rated at IPX7 (brief submersion), well ahead of the Marshall Kilburn II at IPX2 (light drips).
Still deciding? The full Portable Bluetooth rankings cover every ranked option.
Specifications Side By Side
| Marshall Kilburn II | W-King D8 | |
|---|---|---|
| Price | $279.00 | $69.99 |
| Ranked | #39 of 83 in Large Size Portable Bluetooth Speakers | #47 of 83 in Large Size Portable Bluetooth Speakers |
| Aux Input | Yes | Yes |
| Bass Extension (-10dB) | ~58Hz | 49Hz |
| Battery Life | 20 hours (Manufacturer specified) | 24 hours (Manufacturer specified) |
| IP Rating | IPX2 | IPX7 |
| Weight | 5.5 lbs (2.49 kg) | 5.4 lbs (2.43 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 | No |
| Amplifier Power | 36W | 90W max / 50W RMS |
| Dimensions | 9.6” x 6.4” x 5.5” (243 x 162 x 140 mm) | 12.6” x 4.8” x 4.7” (320 x 121.9 x 119.4 mm) |
| Drivers | 1x 4” (102mm) woofer + 2x 20mm dome tweeters | 2x 70mm woofers + 2x 31mm tweeters + passive radiators |
| Maximum SPL | 102dB (Manufacturer specified) | 101dB (measured by Alan Ross Reviews) |
| Digital Aux Input | No | No |
| Bluetooth Version | 5.0 | 5.0 |
| Strap | Yes (built-in strap) | - |
| MicroSD Playback | - | Yes |
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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
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. Measured bass extension of ~58Hz (-10dB).
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 →
| Amplifier Power | 36W |
|---|---|
| App | No |
| Aux Input | Yes |
| Bass Extension (-10dB) | ~58Hz |
| Battery Life | 20 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.0 |
| 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 |
| Maximum SPL | 102dB (Manufacturer specified) |
| Omnidirectional | No |
| Party Mode | No |
| Power Bank | No |
| Power Input | USB-C |
| Stereo | Yes |
| Strap | Yes (built-in strap) |
| TWS | Yes |
| Weight | 5.5 lbs (2.49 kg) |
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W-King D8: $69.99 Amazon eBay
Pros: At 2.43 kg, W-King D8 combines 2x 70mm woofers + 2x 31mm tweeters + passive radiators with Bluetooth and aux. Claimed 24 hours (manufacturer specified) battery life, ipx7 protection, up to 101db and stereo playback make its feature set practical for its intended room or portable use. Measured bass extension of 49Hz (-10dB).
Cons: Bass is limited by its 49Hz specification. There is no companion app. No EQ adjustment.
Full W-King D8 review and specifications →
| Amplifier Power | 90W max / 50W RMS |
|---|---|
| App | No |
| Aux Input | Yes |
| Bass Extension (-10dB) | 49Hz |
| Battery Life | 24 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.0 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 12.6” x 4.8” x 4.7” (320 x 121.9 x 119.4 mm) |
| Drivers | 2x 70mm woofers + 2x 31mm tweeters + passive radiators |
| EQ | No |
| IP Rating | IPX7 |
| Maximum SPL | 101dB (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 | 5.4 lbs (2.43 kg) |
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