Short answer: the Teufel Rockster Cross 2. It ranks #22 of 82 large speakers by sound quality (rated 4.2/5); the JBL Xtreme 4 ranks #40 (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 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.
Specifications Side By Side
| Teufel Rockster Cross 2 | JBL Xtreme 4 | |
|---|---|---|
| Price | €249.99 | $309.95 |
| Ranked | #22 of 82 in Large Size Portable Bluetooth Speakers | #40 of 82 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 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) |
| Bluetooth Latency | - | 220ms |
| Removable Battery | - | Yes |
| Built-in Microphone | - | Yes |
| Strap | - | Yes (detachable shoulder strap) |
Related Speaker Comparisons
How Teufel Rockster Cross 2 compares with other leading options:
- JBL Xtreme 5 vs Teufel Rockster Cross 2
- Tribit Stormbox Lava vs Teufel Rockster Cross 2
- Soundcore Boom 2 vs Teufel Rockster Cross 2
- Marshall Stockwell II vs Teufel Rockster Cross 2
- Bose SoundLink Max vs Teufel Rockster Cross 2
Prices on this page were last checked September 26, 2026 at 11:14 PM UTC. Product prices and availability are accurate as of that date/time and are subject to change; the price and availability shown on Amazon at the time of purchase will apply to the purchase of this product.
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The Two Speakers In Full
Teufel Rockster Cross 2: €249.99 Teufel eBay
Older model: the Teufel Rockster Cross (rated 4.2/5).
Pros: Keeps the original Rockster Cross’s sound, which was fairly neutral and vocal focused with punchy, well controlled bass, and the new Teufel Go app EQ gets noticeably more bass punch out of it than the original could manage. Claimed battery life more than doubles to 38 hours, or 46 in Eco Mode. USB-C charging with a power bank output and a built-in USB-C sound card, a 3.5mm aux input, multipoint pairing, AAC, and Party Link for a true stereo pair or up to 100 current Teufel speakers.
Cons: It uses the same drivers and amplifier as the 2018 original, so without EQ the two sound almost identical, even at maximum volume, and it measured about the same 101dB. In a direct comparison it struggles somewhat against the Soundcore Boom 2. aptX was dropped, water protection is still only IPX5 (water jets, not submersion), Party Link does not work with the original Cross, and the app’s bass and treble controls are limited. It is not sold in the US.
Full Teufel Rockster Cross 2 review and specifications →
| Amplifier Power | 40W RMS |
|---|---|
| App | Yes (Teufel Go) |
| Aux Input | Yes |
| Battery Life | 38 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC, AAC |
| Bluetooth Version | 5.3 |
| Digital Aux Input | Yes (USB-C) |
| Dimensions | 15.4” x 5.9” x 5.1” (390 x 150 x 130 mm) |
| Drivers | 120mm woofer, 2x 20mm textile dome tweeters + 2x passive radiators |
| EQ | Yes (bass and treble, presets) |
| Frequency Response | 50Hz - 20kHz (Manufacturer specified) |
| IP Rating | IPX5 |
| Maximum SPL | 101dB (measured by M1M Tech Channel) |
| Omnidirectional | No |
| Party Mode | Yes (Party Link, up to 100 speakers) |
| Power Bank | Yes (USB-C) |
| Power Input | USB-C |
| Stereo | Partially |
| TWS | Yes (Party Link Stereo) |
| Weight | 5.3 lbs (2.4 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
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JBL Xtreme 4: $309.95 Amazon B&H Photo Video eBay
Newer model: the JBL Xtreme 5, rated 4.6/5.
Pros: A rugged 2.1kg portable with IP67 protection, a replaceable battery, USB-C power-bank output, Auracast, stereo pairing and a useful 5-band app EQ. Independent reviews find the midrange detailed and the sound clear, punchy and refined for outdoor use; it also reaches a strong 106dB maximum level and has excellent real-world battery life.
Cons: It cannot produce the deep rumble of a larger speaker, and bass compression increases near maximum volume. The front-facing layout has only modest off-axis consistency, Bluetooth latency is high for video, and the default balance benefits from EQ adjustment. There is no aux input, so wired sources are not supported. Out of the box it leans bass-boosted, with a dip between the upper bass and midrange that EQ cannot fix, and it pushes the upper mids and treble at high volume. It is also expensive.
Full JBL Xtreme 4 review and specifications →
| Amplifier Power | 100W |
|---|---|
| App | Yes |
| Aux Input | No |
| Battery Life | 24 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC |
| Bluetooth Latency | 220ms |
| Bluetooth Version | 5.3 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 11.7” x 5.9” x 5.6” (297 x 149 x 141 mm) |
| Drivers | 2x 70mm woofers, 2x 19mm tweeters + 2x passive radiators |
| EQ | Yes (5 band) |
| Frequency Response | 44Hz - 20kHz (Manufacturer specified) |
| IP Rating | IP67 |
| Maximum SPL | 106dB (measured by Alan Ross Reviews) |
| Omnidirectional | No |
| Party Mode | Yes (Auracast) |
| Power Bank | Yes (USB-C) |
| Power Input | USB-C |
| Removable Battery | Yes |
| Stereo | Yes |
| Strap | Yes (detachable shoulder strap) |
| TWS | Yes |
| Weight | 4.6 lbs (2.1 kg) |
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- Alan Ross Reviews: JBL Xtreme 4 vs Flip 7 vs Charge 6 – The ULTIMATE JBL Speaker Showdown! More from alanrossreviews →
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