Short answer: pick the Teufel Rockster Cross if you want sound quality that has been measured and ranked; the Bumpboxx Thump is unmeasured so far, so its case rests on features and price.
What the Bumpboxx Thump offers: A compact 120W boombox that uses a sealed chamber with passive radiators for bass, in a 3.2kg cabinet about half the weight of the Flare 8.
On paper: The Bumpboxx Thump has more amplifier power, 120W against 30W. The Bumpboxx Thump is rated for 32 hours of battery against 16 hours. The Teufel Rockster Cross is lighter, 2.4 kg against 3.2 kg.
Price: the Bumpboxx Thump lists at $179 and the Teufel Rockster Cross at $199.99.
Buy the Teufel Rockster Cross if you want a speaker whose sound quality has been measured and ranked. It also has less weight.
Buy the Bumpboxx Thump if you want more power and longer battery life, and you can wait for measurements to confirm how it sounds.
Want more options? Browse the full Portable Bluetooth rankings.
Specifications Side By Side
| Bumpboxx Thump | Teufel Rockster Cross | |
|---|---|---|
| Price | $179.00 | $199.99 |
| Ranked | - | #23 of 85 in Large Size Portable Bluetooth Speakers |
| Amplifier Power | 120W | 30W |
| Aux Input | Yes | Yes |
| Battery Life | 32 hours (Manufacturer specified) | 16 hours (Manufacturer specified) |
| Bluetooth | Yes | Yes |
| Dimensions | 184H x 362W x 136D mm | 15” x 6.3” x 5.1” (380 x 160 x 130 mm) |
| Drivers | Sealed chamber drivers with passive radiators | 5” woofer, 2x textile dome tweeters + 2x passive radiators |
| IP Rating | IPX6 | IPX5 |
| Lights | Yes | - |
| Omnidirectional | No | No |
| Strap | Yes (strap) | Yes (detachable shoulder strap) |
| TWS | Yes | Yes |
| USB Playback | Yes | - |
| Weight | 3.2 kg | 5.3 lbs (2.4 kg) |
| Bass Extension (-10dB) | - | 51Hz |
| Power Input | - | DC barrel jack |
| App | - | No |
| Bluetooth Codecs | - | SBC, aptX |
| Built-in Microphone | - | Yes |
| EQ | - | No |
| Party Mode | - | No |
| Power Bank | - | Yes (USB-A) |
| Stereo | - | Partially |
| Bluetooth Version | - | 5.0 |
| Frequency Response | - | 50Hz - 20kHz (Manufacturer specified) |
| Digital Aux Input | - | No |
Prices on this page were last checked September 29, 2026 at 3:43 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
Bumpboxx Thump: $179.00 Amazon eBay
Pros: A compact 120W boombox that uses a sealed chamber with passive radiators for bass, in a 3.2kg cabinet about half the weight of the Flare 8. Bumpboxx rates the battery at up to 32 hours, and it is IPX6 water resistant, the first Bumpboxx to carry a rating. Bluetooth, USB playback and a 3.5mm aux input, stereo pairing with a second Thump, five RGB lighting modes, a carry handle and an adjustable strap.
Cons: No independent measurements or tested reviews have been published, so its tonal balance, bass extension and real output can’t be compared with ranked speakers. Bumpboxx doesn’t publish its driver sizes, frequency response or Bluetooth codec support, and there are no microphone or guitar inputs like the larger Flare models have. IPX6 covers splashes and rain but not submersion.
Full Bumpboxx Thump review and specifications →
| Amplifier Power | 120W |
|---|---|
| Aux Input | Yes |
| Battery Life | 32 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Dimensions | 184H x 362W x 136D mm |
| Drivers | Sealed chamber drivers with passive radiators |
| IP Rating | IPX6 |
| Lights | Yes |
| Omnidirectional | No |
| Strap | Yes (strap) |
| TWS | Yes |
| USB Playback | Yes |
| Weight | 3.2 kg |
- Links
- Reviews, Comparisons and Sound Samples
- These figures are manufacturer-specified rather than independently measured.
- Head-to-Head Comparisons
Teufel Rockster Cross: $199.99 Amazon eBay
Newer model: the Teufel Rockster Cross 2, ranked higher, rated 4.2/5.
Pros: Pretty neutral frequency response. More vocal/midrange-focused than the JBL Xtreme 4, thanks to a larger mid/bass driver: better suited to rock and jazz. Nicer upper-bass detail than the JBL Xtreme 4. Punchy, well-controlled bass that suits rock music, unlike the Soundcore Boom 2 Plus’s overboosted, uncontrolled bass even at stock tuning. Clear, detailed audio with good vocal presence and solid Bluetooth codec support even a couple years after release. Measured bass extension of 51Hz (-10dB).
Cons: Outdoor mode can sound somewhat harsh due to the 4kHz peak. Not as deep or full-sounding in the bass as the JBL Xtreme 4.
Full Teufel Rockster Cross review and specifications →
| Amplifier Power | 30W |
|---|---|
| App | No |
| Aux Input | Yes |
| Bass Extension (-10dB) | 51Hz |
| Battery Life | 16 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC, aptX |
| Bluetooth Version | 5.0 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 15” x 6.3” x 5.1” (380 x 160 x 130 mm) |
| Drivers | 5” woofer, 2x textile dome tweeters + 2x passive radiators |
| EQ | No |
| Frequency Response | 50Hz - 20kHz (Manufacturer specified) |
| IP Rating | IPX5 |
| Omnidirectional | No |
| Party Mode | No |
| Power Bank | Yes (USB-A) |
| Power Input | DC barrel jack |
| Stereo | Partially |
| Strap | Yes (detachable shoulder strap) |
| TWS | Yes |
| Weight | 5.3 lbs (2.4 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Teufel Rockster Cross vs Bogasing S8 Pro Max
- Teufel Rockster Cross vs Teufel Rockster Cross 2
- Teufel Rockster Cross vs Soundcore Rave Neo 2
- Teufel Rockster Cross vs Bose SoundLink Plus
- Teufel Rockster Cross vs onn Portable FM Boombox
- Teufel Rockster Cross vs Loewe We. Hear Pro
- Teufel Rockster Cross vs Soundcore Motion X600
- Teufel Rockster Cross vs Soundcore Motion X500
- See all 53 comparisons