Short answer: the Teufel Rockster for battery-powered loudness, the JBL Partybox Ultimate for the deepest bass. The Rockster is called the loudest battery powered speaker with deeper bass than the Soundboks 2/3, but it is extremely heavy, not stereo, and only available in Europe. The Ultimate ranks #2 of 12 against #8 of 12 and has the deepest bass, though it is very large and heavy with no battery.
On the JBL Partybox Ultimate side: Absolute deepest bass of any Bluetooth speaker. Handle and wheels are convenient. The catch: Very large and heavy. No battery. Note, JBL daisychain is not compatible with any other non-JBL speaker and is possibly a fully digital signal.
Buy the JBL Partybox Ultimate. It is rated higher for sound quality and still sold new, while the Teufel Rockster is discontinued.
Water resistance is not close: the JBL Partybox Ultimate is rated at IPX4 (splashing), well ahead of the Teufel Rockster at no water resistance.
Still deciding? The full Portable Bluetooth rankings cover every ranked option.
Specifications Side By Side
| JBL Partybox Ultimate | Teufel Rockster | |
|---|---|---|
| Price | $1,499.95 | €950 Discontinued |
| Ranked | #2 of 12 in Large Party Size Portable Bluetooth Speakers | #8 of 12 in Large Party Size Portable Bluetooth Speakers |
| App | Yes | No |
| Aux Input | Yes | Yes |
| Battery Life | No Battery | 30 hours (Manufacturer specified) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | aptX, SBC |
| EQ | Yes (3 band) | Yes |
| Guitar Input | Yes | Yes |
| IP Rating | IPX4 | None |
| Microphone Input | Yes (Karaoke mode with echo effect) | Yes |
| Power Bank | Yes (USB-A, 5V/2.1A) | Yes |
| Power Input | AC Power cord | AC Power cord |
| TWS | Yes | Yes |
| USB Playback | Yes | Yes |
| Weight | 86 lbs (39 kg) | 68.3 lbs (31 kg) |
| Wi-Fi | Yes | No |
| Built-in Microphone | No | No |
| Party Mode | Yes (Auracast) | Yes (Party Link, up to 100 speakers) |
| Stereo | Yes | Yes |
| Omnidirectional | No | No |
| Bluetooth Version | 5.3 | 4.0 |
| Dimensions | 17.9” x 41.3” x 17.3” (455 x 1049 x 440 mm) | 23.1” x 30.2” x 17.8” (588 x 768 x 451 mm) |
| Drivers | 2x 9” subwoofer, 2x 4.5” midrange, 2x 2.75” tweeter | 2-way: 1x 15” (380mm) woofer, 1x 1” horn-loaded tweeter |
| Amplifier Power | 1100W | 450W |
| Digital Aux Input | No | No |
| Lights | Yes | - |
| Wheels | Yes | - |
| Strap | No | No |
| XLR Input | - | Yes |
| Maximum SPL | - | 115dB (Manufacturer specified) |
Related Speaker Comparisons
More top alternatives to JBL Partybox Ultimate:
- Sony ULT Tower Max vs JBL Partybox Ultimate
- JBL Partybox 1000 vs JBL Partybox Ultimate
- JBL Partybox Ultimate vs Teufel Rockster 2
- JBL Partybox 720 vs JBL Partybox Ultimate
- JBL Partybox 710 vs JBL Partybox Ultimate
Prices on this page were last checked October 3, 2026 at 10:26 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
JBL Partybox Ultimate: $1,499.95 Amazon B&H Photo Video eBay
Newer model: the JBL Partybox Ultimate 2. It’s likely to perform similarly, though we can’t confirm that yet.
Pros: A true large-venue party speaker: its 1,100W system, dual 9-inch woofers and six-driver array produce exceptionally deep, authoritative bass and very high clean output. Independent reviews praise its unusually clear, articulate sound at extreme levels. Wi-Fi streaming, app EQ, inputs for two mics/guitar, USB playback, Auracast, a polished light show and wheels make it unusually complete for karaoke and DJ-style use.
Cons: At 39kg and more than a metre tall, this is not casually portable despite the wheels. It needs AC power, has no battery and only IPX4 splash resistance. Reviews also note that its bass-heavy presentation can obscure fine detail and overwhelm a small room; its size and cost only make sense for very large spaces or frequent events. JBL’s wired daisy chain only works with other JBL speakers.
Full JBL Partybox Ultimate review and specifications →
| Amplifier Power | 1100W |
|---|---|
| App | Yes |
| Aux Input | Yes |
| Battery Life | No Battery |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.3 |
| Built-in Microphone | No |
| Digital Aux Input | No |
| Dimensions | 17.9” x 41.3” x 17.3” (455 x 1049 x 440 mm) |
| Drivers | 2x 9” subwoofer, 2x 4.5” midrange, 2x 2.75” tweeter |
| EQ | Yes (3 band) |
| Guitar Input | Yes |
| IP Rating | IPX4 |
| Lights | Yes |
| Microphone Input | Yes (Karaoke mode with echo effect) |
| Omnidirectional | No |
| Party Mode | Yes (Auracast) |
| Power Bank | Yes (USB-A, 5V/2.1A) |
| Power Input | AC Power cord |
| Stereo | Yes |
| Strap | No |
| TWS | Yes |
| USB Playback | Yes |
| Weight | 86 lbs (39 kg) |
| Wheels | Yes |
| Wi-Fi | Yes |
- Links
- Reviews, Comparisons and Sound Samples
- GYMCADDY: JBL Partybox Ultimate Vs SOUNDBOKS 4 & Sony XV900 - Is It Worth It? More from GYMCADDY →
- GYMCADDY: JBL Partybox Ultimate Vs Partybox 710 - They’re Both Crazy, But There Is A Clear Winner
- Flossy Carter: JBL PartyBox Ultimate VS JBL PartyBox 1000 - Which Speaker is The BEST? More from FlossyCarter →
- GYMCADDY: JBL Partybox 720 Vs JBL Partybox Ultimate
- GYMCADDY: Sony ULT Tower 10 Vs JBL Partybox Ultimate & JBL Partybox 710
- M1MTechChannel: Vorsicht LAUT ⚠️ | Teufel Rockster 2 vs JBL Partybox 720 / Ultimate More from M1MTechChannel →
- M1MTechChannel: Welche JBL Partybox ist die BESTE ? Alle Partyboxen im Vergleich | 2026
- Head-to-Head Comparisons
- JBL Partybox Ultimate vs JBL Partybox 1000
- JBL Partybox Ultimate vs Sony ULT Tower Max
- JBL Partybox Ultimate vs Teufel Rockster 2
- JBL Partybox Ultimate vs JBL Partybox 720
- JBL Partybox Ultimate vs JBL Partybox 710
- JBL Partybox Ultimate vs JBL Partybox 520
- JBL Partybox Ultimate vs Sony ULT Tower 9
- JBL Partybox Ultimate vs Sony ULT Tower 10
- See all 17 comparisons
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 Sony SRS-XV900
- Teufel Rockster vs Teufel Rockster 2
- Teufel Rockster vs Marshall Bromley 750
- See all 14 comparisons