Short answer: the Teufel Rockster Cross 2. It ranks #22 of 120 large speakers by sound quality (rated 4.2/5); the Sony ULT Field 5 ranks #59 (rated 3.5/5).
Sound: The Rockster Cross 2 sounds almost identical to the original Cross with default settings, since it uses the same drivers and amplifier, which is fairly neutral and vocal focused with punchy, controlled bass. The ULT Field 5 prioritizes bass and loudness, with subdued upper mids and highs and limited stereo separation.
Battery is close: 38 hours claimed for the Cross 2, or 46 in Eco Mode, against 25 for the ULT Field 5.
The ULT Field 5 is tougher and more featured, with IP67 against IPX5, LDAC, a 10-band app EQ and Party Connect for up to 100 speakers. The Cross 2 has AAC, multipoint and a USB-C sound card.
Both have an aux input, a power bank and stereo pairing. The Cross 2 is lighter, at 5.3 lbs (2.4 kg) against 7.3 lbs (3.3 kg).
Buy the Teufel Rockster Cross 2. It is rated higher for sound quality than the Sony ULT Field 5.
Looking for alternatives? See the complete Portable Bluetooth rankings.
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Specifications Side By Side
| Teufel Rockster Cross 2 | Sony ULT Field 5 | |
|---|---|---|
| Price | €249.99 | $348.00 |
| Ranked | #22 of 120 in Large Size Portable Bluetooth Speakers | #59 of 120 in Large Size Portable Bluetooth Speakers |
| App | Yes (Teufel Go) | Yes |
| Aux Input | Yes | Yes |
| Battery Life | 38 hours (Manufacturer specified) | 25 hours (Manufacturer specified) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC, AAC | SBC, AAC, LDAC |
| Bluetooth Version | 5.3 | 5.3 |
| Dimensions | 15.4” x 5.9” x 5.1” (390 x 150 x 130 mm) | 12.6” x 5.7” x 4.9” (320 x 144 x 125 mm) |
| Digital Aux Input | Yes (USB-C) | No |
| Drivers | 120mm woofer, 2x 20mm textile dome tweeters + 2x passive radiators | 2x 46mm tweeters + 1x 79mm x 107mm woofer |
| EQ | Yes (bass and treble, presets) | Yes (App + ULT button) |
| Frequency Response | 50Hz - 20kHz (Manufacturer specified) | - |
| IP Rating | IPX5 | IP67 |
| Maximum SPL | 101dB (measured by M1M Tech Channel) | - |
| Amplifier Power | 40W RMS | 27W |
| Omnidirectional | No | No |
| Party Mode | Yes (Party Link, up to 100 speakers) | Yes (Party Connect up to 100 speakers) |
| 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) | 7.3 lbs (3.3 kg) |
| Strap | Yes (adjustable strap) | Yes (detachable shoulder strap) |
| Built-in Microphone | - | Yes |
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