Short answer: the Teufel Rockster. It ranks #8 of 13 large party speakers by sound quality (rated 4.4/5); the Sony SRS-XV900 ranks #11 (rated 3.7/5).
The case for the Teufel Rockster: Teufel Rockster uses 2-way: 1x 15” (380mm) woofer, 1x 1” horn-loaded tweeter. The catch: There is no companion app.
What the Sony SRS-XV900 does well: Can get slightly louder than a Partybox 310. The catch: Not as deep of bass and loses more bass at high volume compared to the Partybox 310 and every other speaker on this page.
Worth knowing: the Teufel Rockster has been discontinued and is hard to find new at this point.
Buy the Teufel Rockster. It is rated higher for sound quality than the Sony SRS-XV900.
Want more options? Browse the full Portable Bluetooth rankings.
Specifications Side By Side
| Teufel Rockster | Sony SRS-XV900 | |
|---|---|---|
| Price | €950 Discontinued | $900 Discontinued |
| Ranked | #8 of 13 in Large Party Size Portable Bluetooth Speakers | #11 of 13 in Large Party Size Portable Bluetooth Speakers |
| Aux Input | Yes | Yes |
| Battery Life | 30 hours (Manufacturer specified) | 25 hours (Manufacturer specified) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | aptX, SBC | SBC, AAC, LDAC |
| Guitar Input | Yes | Yes |
| IP Rating | None | None |
| Microphone Input | Yes | Yes (Karaoke mode with echo effect) |
| Power Bank | Yes | Yes (USB-A) |
| Power Input | AC Power cord | AC Power cord |
| Weight | 68.3 lbs (31 kg) | 58.6 lbs (26.6 kg) |
| XLR Input | Yes | - |
| App | No | Yes |
| Built-in Microphone | No | No |
| EQ | Yes | Yes |
| Party Mode | Yes (Party Link, up to 100 speakers) | Yes (Party Connect up to 100 speakers) |
| Stereo | Yes | Yes |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| USB Playback | Yes | Yes |
| Wi-Fi | No | No |
| Bluetooth Version | 4.0 | 5.2 |
| Dimensions | 23.1” x 30.2” x 17.8” (588 x 768 x 451 mm) | 16.1” x 34.6” x 17.3” (410 x 880 x 439 mm) |
| Drivers | 2-way: 1x 15” (380mm) woofer, 1x 1” horn-loaded tweeter | 9 drivers: 1x 12.6”x12.6” woofer, 2x 4.7” midrange, 2x 2” front tweeter, 2x 1.6” side tweeter, 2x 1.6” rear tweeter |
| Amplifier Power | 450W | 100W |
| Maximum SPL | 115dB (Manufacturer specified) | - |
| Digital Aux Input | No | No |
| Strap | No | No |
| Inputs | - | Optical |
| Removable Battery | - | No |
| Lights | - | Yes |
| Wheels | - | Yes |
Related Speaker Comparisons
More worthwhile head-to-heads for Teufel Rockster:
- JBL Partybox Ultimate vs Teufel Rockster
- JBL Partybox 1000 vs Teufel Rockster
- Teufel Rockster 2 vs Teufel Rockster
- JBL Partybox 720 vs Teufel Rockster
- JBL Partybox 710 vs Teufel Rockster
Prices on this page were last checked September 30, 2026 at 2:57 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.
As an eBay Partner, we may be compensated if you make a purchase.
The Two Speakers In Full
Teufel Rockster: €950 Discontinued eBay
Newer model: the Teufel Rockster Neo, rated 4.2/5.
Pros: Teufel Rockster uses 2-way: 1x 15” (380mm) woofer, 1x 1” horn-loaded tweeter. Its 31 kg, claimed 30 hours (Manufacturer specified) battery life, aux input, up to 115dB and stereo playback make it a practical option for its intended room or portable use.
Cons: There is no companion app. Discontinued.
Full Teufel Rockster review and specifications →
| Amplifier Power | 450W |
|---|---|
| App | No |
| Aux Input | Yes |
| Battery Life | 30 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | aptX, SBC |
| Bluetooth Version | 4.0 |
| Built-in Microphone | No |
| Digital Aux Input | No |
| Dimensions | 23.1” x 30.2” x 17.8” (588 x 768 x 451 mm) |
| Drivers | 2-way: 1x 15” (380mm) woofer, 1x 1” horn-loaded tweeter |
| EQ | Yes |
| Guitar Input | Yes |
| IP Rating | None |
| Maximum SPL | 115dB (Manufacturer specified) |
| Microphone Input | Yes |
| Omnidirectional | No |
| Party Mode | Yes (Party Link, up to 100 speakers) |
| Power Bank | Yes |
| Power Input | AC Power cord |
| Stereo | Yes |
| Strap | No |
| TWS | Yes |
| USB Playback | Yes |
| Weight | 68.3 lbs (31 kg) |
| Wi-Fi | No |
| XLR Input | Yes |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Teufel Rockster vs JBL Partybox 520
- Teufel Rockster vs Sony ULT Tower 9
- Teufel Rockster vs JBL Partybox 710
- Teufel Rockster vs Sony ULT Tower 10
- Teufel Rockster vs JBL Partybox 720
- Teufel Rockster vs Teufel Rockster 2
- Teufel Rockster vs Marshall Bromley 750
- Teufel Rockster vs JBL Partybox 1000
- See all 14 comparisons
Sony SRS-XV900: $900 Discontinued eBay
Newer model: the Sony ULT Tower 9, ranked higher, rated 4.2/5.
Pros: Can get slightly louder than a Partybox 310. Handle and wheels are convenient.
Cons: Not as deep of bass and loses more bass at high volume compared to the Partybox 310 and every other speaker on this page. Discontinued; Sony replaced the XV line with the ULT Tower series.
Full Sony SRS-XV900 review and specifications →
| Amplifier Power | 100W |
|---|---|
| App | Yes |
| Aux Input | Yes |
| Battery Life | 25 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC, AAC, LDAC |
| Bluetooth Version | 5.2 |
| Built-in Microphone | No |
| Digital Aux Input | No |
| Dimensions | 16.1” x 34.6” x 17.3” (410 x 880 x 439 mm) |
| Drivers | 9 drivers: 1x 12.6”x12.6” woofer, 2x 4.7” midrange, 2x 2” front tweeter, 2x 1.6” side tweeter, 2x 1.6” rear tweeter |
| EQ | Yes |
| Guitar Input | Yes |
| IP Rating | None |
| Inputs | Optical |
| Lights | Yes |
| Microphone Input | Yes (Karaoke mode with echo effect) |
| Omnidirectional | No |
| Party Mode | Yes (Party Connect up to 100 speakers) |
| Power Bank | Yes (USB-A) |
| Power Input | AC Power cord |
| Removable Battery | No |
| Stereo | Yes |
| Strap | No |
| TWS | Yes |
| USB Playback | Yes |
| Weight | 58.6 lbs (26.6 kg) |
| Wheels | Yes |
| Wi-Fi | No |
- Links
- Reviews, Comparisons and Sound Samples
- Jay’s Straight Up Reviews & More: Sony SRS-XV900 vs JBL Partybox 310 - Can the JBL Middleweight 💪🏽 Compete With The Sony Heavyweight? More from JaysStraightUpReviews →
- Jay’s Straight Up Reviews & More: JBL Partybox 710 ☣️ vs Sony SRS XV900 ☢️- Basement Brawl Speaker Comparison. Can XV900 Top the 710❓
- GYMCADDY: Sony XV900 Review - Finally, A Good Speaker From Sony! More from GYMCADDY →
- Head-to-Head Comparisons
- Sony SRS-XV900 vs Sony ULT Tower 10
- Sony SRS-XV900 vs Marshall Bromley 750
- Sony SRS-XV900 vs Sony ULT Tower 9
- Sony SRS-XV900 vs JBL Partybox 520
- Sony SRS-XV900 vs JBL Partybox 710
- Sony SRS-XV900 vs JBL Partybox 720
- Sony SRS-XV900 vs Teufel Rockster 2
- Sony SRS-XV900 vs JBL Partybox 1000
- See all 15 comparisons