Short answer: the Vifa Oslo for sound quality, the Kilburn II for rugged portability. The Oslo delivers extreme treble detail with decent bass and a full, natural, accurate sound at higher volumes from opposing 65mm woofers, plus 10 hours of battery, though it dips at 270Hz. The Kilburn II has a 20W Class D amp, dual 8W tweeters, 20+ hours of battery and a rugged build, but boosts upper bass and peaks in the upper mids.
Buy the Marshall Kilburn II if you want one new; the Vifa Oslo is discontinued, so only look for it used.
Looking for alternatives? See the complete Portable Bluetooth rankings.
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Specifications Side By Side
| Marshall Kilburn II | Vifa Oslo | |
|---|---|---|
| Price | $219.00 | $549.00 Discontinued |
| Ranked | #42 of 120 in Large Size Portable Bluetooth Speakers | #8 of 120 in Large Size Portable Bluetooth Speakers |
| Aux Input | Yes | Yes |
| Bass Extension (-10dB) | ~58Hz | 50Hz |
| Battery Life | 20 hours (Manufacturer specified) | 8 hours (Manufacturer specified) |
| IP Rating | IPX2 | None |
| Weight | 5.5 lbs (2.49 kg) | 5.3 lbs (2.4 kg) |
| App | No | No (official app is broken, 3rd party android app only) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | aptX, SBC |
| Built-in Microphone | Yes | Yes |
| EQ | No | No |
| Party Mode | No | No |
| Power Bank | No | No |
| Power Input | USB-C | AC Power brick |
| Stereo | Yes | Partially (1 woofer) |
| Omnidirectional | No | No |
| TWS | Yes | No |
| Amplifier Power | 36W | 50W |
| Dimensions | 9.6” x 6.4” x 5.5” (243 x 162 x 140 mm) | 10.6” x 7.1” x 3.5” (268 x 181 x 90 mm) |
| Drivers | 1x 4” (102mm) woofer + 2x 20mm dome tweeters | 2x 50mm fullrange, 2x 80mm woofers + passive radiators |
| Maximum SPL | 102dB (Manufacturer specified) | - |
| Digital Aux Input | No | No |
| Bluetooth Version | 5.0 | 4.1 |
| Strap | Yes (built-in strap) | - |
| Frequency Response | - | 55Hz - 20kHz (Manufacturer specified) |
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