Short answer: a tie on sound quality. Both are rated 4.2/5 (#22 and #25 of 120 large speakers), so choose on features and fit.

Sound: the SoundLink Plus has boosted, thuddy bass and no EQ adjustment. The Cross 2 sounds almost identical to the original Cross, which is fairly neutral and vocal focused with punchy bass, and its app EQ adds more bass punch.
Battery: 38 hours claimed for the Cross 2, or 46 in Eco Mode, against close to 20 for the SoundLink Plus.
Toughness and size favor the Bose: IP67 against IPX5, and 3.3 lbs (1.5 kg) against 5.3 lbs (2.4 kg).
Connectivity favors the Teufel: a 3.5mm aux input, a USB-C sound card, AAC and multipoint. Both have a power bank and stereo pairing.
Buy the Teufel Rockster Cross 2 or the Bose SoundLink Plus on features: they are rated the same for sound quality at close to the same price.
Want more options? Browse the full Portable Bluetooth rankings.
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Specifications Side By Side
| Teufel Rockster Cross 2 | Bose SoundLink Plus | |
|---|---|---|
| Price | €249.99 | $179.00 |
| Ranked | #22 of 120 in Large Size Portable Bluetooth Speakers | #25 of 120 in Large Size Portable Bluetooth Speakers |
| App | Yes (Teufel Go) | Yes |
| Aux Input | Yes | No |
| Battery Life | 38 hours (Manufacturer specified) | 20 hours (Manufacturer specified) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC, AAC | SBC |
| Bluetooth Version | 5.3 | 5.4 |
| Dimensions | 15.4” x 5.9” x 5.1” (390 x 150 x 130 mm) | 9.1” x 3.9” x 3.4” (231 x 99 x 86 mm) |
| Digital Aux Input | Yes (USB-C) | No |
| Drivers | 120mm woofer, 2x 20mm textile dome tweeters + 2x passive radiators | 1x 2.5” (63.5mm) woofer + 1x ~0.78” (20mm) tweeter + 4x passive radiators |
| EQ | Yes (bass and treble, presets) | No |
| Frequency Response | 50Hz - 20kHz (Manufacturer specified) | - |
| IP Rating | IPX5 | IP67 |
| Maximum SPL | 101dB (measured by M1M Tech Channel) | - |
| Amplifier Power | 40W RMS | - |
| Omnidirectional | No | No |
| Party Mode | Yes (Party Link, up to 100 speakers) | Yes (Bose Party mode) |
| Power Bank | Yes (USB-C) | Yes (USB-C) |
| Power Input | USB-C | USB-C |
| Stereo | Partially | Yes |
| TWS | Yes (Party Link Stereo) | Yes |
| Weight | 5.3 lbs (2.4 kg) | 3.3 lbs (1.5 kg) |
| Strap | Yes (adjustable strap) | Yes (built-in loop) |
| Built-in Microphone | - | No |
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