Short answer: the Teufel Rockster Cross 2. It ranks #22 of 120 large speakers by sound quality (rated 4.2/5); the Marshall Stockwell III ranks #84 (rated 3.0/5).
The Cross 2 is the better sounding speaker. It sounds almost identical to the original Cross, which is fairly neutral with punchy bass, and its app EQ adds more bass punch. The Stockwell III sounds muffled by default, with recessed highs even with the treble maxed, boomy bass, and harshness well below maximum volume.
Battery: both last a very long time, 40 hours or more for the Stockwell III and 38 for the Cross 2, or 46 in Eco Mode. The Stockwell III’s battery is user replaceable.
Size: the Stockwell III weighs 2.9 lbs (1.3 kg) against 5.3 lbs (2.4 kg) for the Cross 2.
Features: both have an aux input and a power bank. The Stockwell III has a parametric app EQ and IP55. The Cross 2 has IPX5, multipoint, a USB-C sound card and Party Link.
Buy the Teufel Rockster Cross 2. It is rated higher for sound quality than the Marshall Stockwell III.
Still deciding? The full Portable Bluetooth rankings cover every ranked option.
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Specifications Side By Side
| Teufel Rockster Cross 2 | Marshall Stockwell III | |
|---|---|---|
| Price | €249.99 | $249.99 |
| Ranked | #22 of 120 in Large Size Portable Bluetooth Speakers | #84 of 120 in Large Size Portable Bluetooth Speakers |
| App | Yes (Teufel Go) | Yes |
| Aux Input | Yes | Yes |
| Battery Life | 38 hours (Manufacturer specified) | 40+ hours (Manufacturer specified) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC, AAC | SBC, AAC, LE Audio with LC3 |
| Bluetooth Version | 5.3 | 5.3 |
| Dimensions | 15.4” x 5.9” x 5.1” (390 x 150 x 130 mm) | 7.1” x 6.4” x 2.9” (180 x 162 x 74 mm) |
| Digital Aux Input | Yes (USB-C) | No |
| Drivers | 120mm woofer, 2x 20mm textile dome tweeters + 2x passive radiators | 1x 3” woofer, 2x 1.75” wide-band drivers |
| EQ | Yes (bass and treble, presets) | Yes (parametric, via app) |
| Frequency Response | 50Hz - 20kHz (Manufacturer specified) | 54Hz - 20kHz (Manufacturer specified) |
| IP Rating | IPX5 | IP55 |
| Maximum SPL | 101dB (measured by M1M Tech Channel) | - |
| Amplifier Power | 40W RMS | 44W |
| Omnidirectional | No | Yes |
| Party Mode | Yes (Party Link, up to 100 speakers) | - |
| Power Bank | Yes (USB-C) | Yes |
| Power Input | USB-C | USB-C |
| Stereo | Partially | Partially |
| TWS | Yes (Party Link Stereo) | No |
| Weight | 5.3 lbs (2.4 kg) | 2.9 lbs (1.3 kg) |
| Strap | Yes (adjustable strap) | Yes (detachable strap) |
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