Short answer: the JBL Partybox Stage 320. It ranks #3 of 39 party speakers by sound quality at $499.95; the Diamondboxx L2 ranks #27 and costs $1000, so there is little reason to consider the other one.
Short answer: between the two, the JBL Partybox Stage 320 rates higher, 4.6 versus 2.9. The JBL Partybox Stage 320 stands out here: Handle and wheels are convenient. The Diamondboxx L2 offers high-fidelity Class A/B amps with good bass response and clear sound at all volumes.
Where they differ on paper:
- IP Rating: IPX4 vs None
- Drivers: 2x 6.5” woofers, 2x 25mm tweeters vs 5.5” woofer, 1” tweeter
- Amplifier Power: 240W vs 260W RMS
- Bluetooth Codecs: SBC vs aptX HD, SBC
Consider the JBL Partybox Stage 320: Handle and wheels are convenient. Watch for: slightly sibilant in the treble at full blast. Price also favors it, $499.95 versus $1000.
Choose the Diamondboxx L2 for high-fidelity Class A/B amps with good bass response and clear sound: Watch for: boomyness in the 100hz region. It costs more too, at $1000 against $499.95.
Buy the JBL Partybox Stage 320. It ranks higher for sound quality than the Diamondboxx L2 and costs less, which settles it without a real tradeoff to make.
Water resistance is not close: the JBL Partybox Stage 320 is rated at IPX4 (splashing), well ahead of the Diamondboxx L2 at no water resistance.
Want more options? Browse the full Portable Bluetooth rankings.
Specifications Side By Side
| JBL Partybox Stage 320 | Diamondboxx L2 | |
|---|---|---|
| Price | $499.95 | $1000 Discontinued |
| Ranked | #3 of 39 in Party Size Portable Bluetooth Speakers | #27 of 39 in Party Size Portable Bluetooth Speakers |
| App | Yes | No |
| Aux Input | Yes | Yes |
| Battery Life | 18 hours (Manufacturer specified) | - |
| Bluetooth Codecs | SBC | aptX HD, SBC |
| Bluetooth Version | 5.4 | 4.2 |
| Drivers | 2x 6.5" woofers, 2x 25mm tweeters | 5.5" woofer, 1" tweeter |
| EQ | Yes (5 band) | No |
| Guitar Input | Yes | - |
| IP Rating | IPX4 | None |
| Microphone Input | Yes (Karaoke mode with echo effect) | - |
| Party Mode | Yes (Auracast) | No |
| Power Bank | Yes (USB-A, 5V/2.1A) | No |
| Power Input | AC Power cord | AC Power brick |
| Removable Battery | Yes | - |
| Stereo | Partially | Yes |
| Omnidirectional | No | No |
| TWS | Yes | No |
| USB Playback | Yes | No |
| Weight | 36.4 lbs (16.5 kg) | 24.3 lbs (11 kg) |
| Amplifier Power | 240W | 260W RMS |
| Digital Aux Input | No | No |
| Lights | Yes | - |
| Wheels | Yes | - |
| Charging Time | - | 9 hours |
| Discontinued | - | Yes |
| Dimensions | - | 23" x 14.5" x 9.5" (584.2 x 368.3 x 241.3 mm) |
| Frequency Response | - | 40Hz - 22kHz (Manufacturer specified) |
Related Speaker Comparisons
How JBL Partybox Stage 320 compares with other leading options:
- Sony ULT Tower 7 vs JBL Partybox Stage 320
- JBL Partybox 330 vs JBL Partybox Stage 320
- JBL Partybox 310 vs JBL Partybox Stage 320
- Sony ULT Tower 5 vs JBL Partybox Stage 320
- JBL Partybox Club 120 vs JBL Partybox Stage 320
Prices on this page were last checked September 17, 2026 at 12:43 AM 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 Stage 320: $499.95 Amazon B&H Photo Video eBay
Pros: Handle and wheels are convenient. Customizable color lighting modes. Keeps more bass than the 310 at high volume. Removable battery.
Cons: Slightly sibilant in the treble at full blast. Very large.
Full JBL Partybox Stage 320 review and specifications →
| Amplifier Power | 240W |
|---|---|
| App | Yes |
| Aux Input | Yes |
| Battery Life | 18 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.4 |
| Digital Aux Input | No |
| Drivers | 2x 6.5" woofers, 2x 25mm tweeters |
| EQ | Yes (5 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 |
| Removable Battery | Yes |
| Stereo | Partially |
| TWS | Yes |
| USB Playback | Yes |
| Weight | 36.4 lbs (16.5 kg) |
| Wheels | Yes |
- Links
- Reviews, Comparisons and Sound Samples
- Oluv Patreon: JBL Partybox 320 vs 520 - indoor listening session More from Oluv’Sone →
- Oluv Patreon: JBL Partybox 320 vs 520 - outdoor test
- Jay’s Straight Up Reviews & More: JBL Partybox Stage 320 vs 310 🛜 Defcon 5🚨 Bass Alert! Take Shelter Immediately! 😲 Best Bass Goes To? More from JaysStraightUpReviews →
- Jay’s Straight Up Reviews & More: JBL Partybox Stage 320 vs 310 🥳 A Family Feud! Battery Powered🔋Bluetooth Party Speakers Face-Off🤬
- GYMCADDY: JBL PartyBox Stage 320 Review - Big Upgrades Everywhere, Worth The Upgrade More from GYMCADDY →
- M1MTechChannel: Welche JBL Partybox ist die BESTE ? Alle Partyboxen im Vergleich | 2026 More from M1MTechChannel →
- M1MTechChannel: soundcore Rave 3S mit 200W | LAUTER als die JBL Partybox 320 ?
- Head-to-Head Comparisons
- JBL Partybox Stage 320 vs JBL Partybox 330
- JBL Partybox Stage 320 vs JBL Partybox 310
- JBL Partybox Stage 320 vs Sony ULT Tower 5
- JBL Partybox Stage 320 vs Sony ULT Tower 7
- JBL Partybox Stage 320 vs JBL Partybox Club 120
- JBL Partybox Stage 320 vs JBL Partybox 130
- JBL Partybox Stage 320 vs JBL Partybox 100
- JBL Partybox Stage 320 vs JBL Partybox 110
- See all 66 comparisons
Diamondboxx L2: $1000 Discontinued eBay
Pros: High-fidelity Class A/B amps with good bass response and clear sound at all volumes. Fills large spaces at under 50% volume, comparable to medium bookshelf speakers. Stable bass response even at 15-20% volume. 6-48 hours battery on 400+ watts (9 hours full recharge). Built-in 2.1A USB power for charging devices. Over 1000 recharge cycles.
Cons: Boomyness in the 100hz region. Gets distorted. Too much treble. Too expensive. Discontinued.
Full Diamondboxx L2 review and specifications →
| Amplifier Power | 260W RMS |
|---|---|
| App | No |
| Aux Input | Yes |
| Bluetooth Codecs | aptX HD, SBC |
| Bluetooth Version | 4.2 |
| Charging Time | 9 hours |
| Digital Aux Input | No |
| Dimensions | 23" x 14.5" x 9.5" (584.2 x 368.3 x 241.3 mm) |
| Discontinued | Yes |
| Drivers | 5.5" woofer, 1" tweeter |
| EQ | No |
| Frequency Response | 40Hz - 22kHz (Manufacturer specified) |
| IP Rating | None |
| Omnidirectional | No |
| Party Mode | No |
| Power Bank | No |
| Power Input | AC Power brick |
| Stereo | Yes |
| TWS | No |
| USB Playback | No |
| Weight | 24.3 lbs (11 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