Short answer: the Vifa Oslo if sound quality matters most, the Teufel Rockster Cross if price matters most. The Vifa Oslo ranks #8 of 82 large speakers, rated 4.5/5, at $549. The Teufel Rockster Cross ranks #23, rated 4.2/5, at $199.99, $349.01 cheaper.
The case for the Vifa Oslo: Extreme treble details with decent bass. The catch: Dip at 270Hz.
What the Teufel Rockster Cross does well: Pretty neutral frequency response. Watch for: Outdoor mode can sound somewhat harsh due to the 4kHz peak.
Buy the Vifa Oslo if sound quality is the priority over the price, or the Teufel Rockster Cross if the price is the priority over sound quality.
Battery life favors the Teufel Rockster Cross: rated for 16 hours against 8 hours for the Vifa Oslo.
If water resistance matters to you, the Teufel Rockster Cross at IPX5 (water jets) holds up far better than the Vifa Oslo at no water resistance.
Want more options? Browse the full Portable Bluetooth rankings.
Specifications Side By Side
| Vifa Oslo | Teufel Rockster Cross | |
|---|---|---|
| Price | $549.00 | $199.99 |
| Ranked | #8 of 82 in Large Size Portable Bluetooth Speakers | #23 of 82 in Large Size Portable Bluetooth Speakers |
| App | No (official app is broken, 3rd party android app only) | No |
| Aux Input | Yes | Yes |
| Bass Extension (-10dB) | 50Hz | 51Hz |
| Battery Life | 8 hours (Manufacturer specified) | 16 hours (Manufacturer specified) |
| Bluetooth Codecs | aptX, SBC | SBC, aptX |
| IP Rating | None | IPX5 |
| Power Input | AC Power brick | DC barrel jack |
| Stereo | Partially (1 woofer) | Partially |
| Omnidirectional | No | No |
| TWS | No | Yes |
| Weight | 5.3 lbs (2.4 kg) | 5.3 lbs (2.4 kg) |
| Built-in Microphone | Yes | Yes |
| EQ | No | No |
| Party Mode | No | No |
| Power Bank | No | Yes (USB-A) |
| Bluetooth Version | 4.1 | 5.0 |
| Dimensions | 10.6” x 7.1” x 3.5” (268 x 181 x 90 mm) | 15” x 6.3” x 5.1” (380 x 160 x 130 mm) |
| Drivers | 2x 50mm fullrange, 2x 80mm woofers + passive radiators | 5” woofer, 2x textile dome tweeters + 2x passive radiators |
| Frequency Response | 55Hz - 20kHz (Manufacturer specified) | 50Hz - 20kHz (Manufacturer specified) |
| Digital Aux Input | No | No |
| Amplifier Power | 50W | 30W |
Related Speaker Comparisons
How Vifa Oslo compares with other leading options:
- Vifa Helsinki vs Vifa Oslo
- JBL Xtreme 5 vs Vifa Oslo
- Tribit Stormbox Lava vs Vifa Oslo
- Brane X vs Vifa Oslo
- Minirig 3 with subwoofer vs Vifa Oslo
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
Vifa Oslo: $549.00 Amazon eBay
Pros: Extreme treble details with decent bass. Full, natural, accurate sound at higher volumes. Rich, full bass from opposing 65mm woofers. Premium Kvadrat wool fabric with aluminum handle. 10 hour battery life. Measured bass extension of 50Hz (-10dB).
Cons: Dip at 270Hz. The Vifa Helsinki is cheaper and generally has a more neutral frequency response, so it is the better buy if you specifically want a Vifa. This one is hard to recommend generally these days: the Uboom L has 95% of the sound quality with more features and a much cheaper price.
Full Vifa Oslo review and specifications →
| Amplifier Power | 50W |
|---|---|
| App | No (official app is broken, 3rd party android app only) |
| Aux Input | Yes |
| Bass Extension (-10dB) | 50Hz |
| Battery Life | 8 hours (Manufacturer specified) |
| Bluetooth Codecs | aptX, SBC |
| Bluetooth Version | 4.1 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 10.6” x 7.1” x 3.5” (268 x 181 x 90 mm) |
| Drivers | 2x 50mm fullrange, 2x 80mm woofers + passive radiators |
| EQ | No |
| Frequency Response | 55Hz - 20kHz (Manufacturer specified) |
| IP Rating | None |
| Omnidirectional | No |
| Party Mode | No |
| Power Bank | No |
| Power Input | AC Power brick |
| Stereo | Partially (1 woofer) |
| TWS | No |
| Weight | 5.3 lbs (2.4 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- No independent measurement review is linked for this model; it is ranked from hands-on listening and comparison against similarly priced speakers.
- Head-to-Head Comparisons
Teufel Rockster Cross: $199.99 Amazon eBay
Newer model: the Teufel Rockster Cross 2, 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 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 |
| 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
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- See all 52 comparisons