Short answer: the Teufel Rockster Cross 2. It ranks #22 of 120 large speakers by sound quality (rated 4.2/5); the JBL Xtreme 4 ranks #43 (rated 3.8/5).
The sound comparison carries over from the original Cross. The Rockster Cross 2 sounds almost identical to the original Cross with default settings, since it uses the same drivers and amplifier. Against the Xtreme 4, the original Cross is more vocal and midrange focused, with nicer upper bass detail, but not as deep or full in the bass. The Cross 2’s app EQ adds noticeable bass punch, which narrows that gap.
Volume: the Xtreme 4 measured about 106dB, against about 101dB for the Cross 2 with EQ.
Toughness and features favor the JBL. The Xtreme 4 is IP67 against the Cross 2’s IPX5, has a replaceable battery, a 5-band app EQ and Auracast. It has no aux input, which the Cross 2 keeps along with a USB-C sound card.
Battery: the Cross 2 claims 38 hours, or 46 in Eco Mode, against 24 for the Xtreme 4. Both have a power bank and weigh within 0.7 lbs (300 g) of each other.
Buy the Teufel Rockster Cross 2. It is rated higher for sound quality than the JBL Xtreme 4.
Looking for alternatives? See the complete Portable Bluetooth rankings.
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Specifications Side By Side
| Teufel Rockster Cross 2 | JBL Xtreme 4 | |
|---|---|---|
| Price | €249.99 | $309.95 |
| Ranked | #22 of 120 in Large Size Portable Bluetooth Speakers | #43 of 120 in Large Size Portable Bluetooth Speakers |
| App | Yes (Teufel Go) | Yes |
| Aux Input | Yes | No |
| Battery Life | 38 hours (Manufacturer specified) | 24 hours (Manufacturer specified) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC, AAC | SBC |
| Bluetooth Version | 5.3 | 5.3 |
| Dimensions | 15.4” x 5.9” x 5.1” (390 x 150 x 130 mm) | 11.7” x 5.9” x 5.6” (297 x 149 x 141 mm) |
| Digital Aux Input | Yes (USB-C) | No |
| Drivers | 120mm woofer, 2x 20mm textile dome tweeters + 2x passive radiators | 2x 70mm woofers, 2x 19mm tweeters + 2x passive radiators |
| EQ | Yes (bass and treble, presets) | Yes (5 band) |
| Frequency Response | 50Hz - 20kHz (Manufacturer specified) | 44Hz - 20kHz (Manufacturer specified) |
| IP Rating | IPX5 | IP67 |
| Maximum SPL | 101dB (measured by M1M Tech Channel) | 106dB (measured by Alan Ross Reviews) |
| Amplifier Power | 40W RMS | 100W |
| Omnidirectional | No | No |
| Party Mode | Yes (Party Link, up to 100 speakers) | Yes (Auracast) |
| 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) | 4.6 lbs (2.1 kg) |
| Strap | Yes (adjustable strap) | Yes (detachable shoulder strap) |
| Bluetooth Latency | - | 220ms |
| Removable Battery | - | Yes |
| Built-in Microphone | - | Yes |
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