Short answer: the 310 if you can still find one, the 330 if you want it new. The 310 is discontinued but still ranks #4 of 39 party speakers by sound quality, ahead of most of what is still sold new. The 330 ranks #2 at $549.95, $50 more than the 310’s last listed price of $499.95.
The extra 40W did not change how it sounds. JBL bumped rated power from 240W to 280W between the 310 and the 330, but our notes on the 330 are explicit that its sound quality is nearly identical to the 310 despite the increase. The 310 remains the speaker measured to reach 32Hz before dropping 10dB, deeper than any other battery-powered speaker on the site, and reviewers still call it the most balanced-sounding model in the Partybox lineup.
What the 330 genuinely adds:
- Auracast party mode, which the 310 never got.
- A removable battery, so a dead pack does not retire the whole speaker.
- An optical input for connecting a TV.
- USB-C lossless playback instead of USB-A.
What the 330 takes away: the dedicated microphone gain and control knobs found on the 310 and Stage 320. If you run karaoke or live sound regularly, that is a real downgrade in usability even though the input count stayed the same.
One note: the JBL Partybox 310 is discontinued, but it still ranks #4 of 39 party speakers by sound quality, ahead of most of what is still sold new, so it is worth considering used.
Buy the 310 used if you can find one near its old price. You get the better-measured speaker for less money, and the only things you give up are Auracast and a removable battery.
Buy the 330 if you want current warranty coverage and stock availability, or if the optical input and removable battery matter more to you than saving $50.
Looking for alternatives? See the complete Portable Bluetooth rankings.
Specifications Side By Side
| JBL Partybox 310 | JBL Partybox 330 | |
|---|---|---|
| Price | $499.95 Discontinued | $549.95 |
| Ranked | #4 of 39 in Party Size Portable Bluetooth Speakers | #2 of 39 in Party Size Portable Bluetooth Speakers |
| App | Yes | Yes |
| Aux Input | Yes | Yes |
| Bass Extension (-10dB) | 32Hz | - |
| Battery Life | 18 hours (Manufacturer specified) | 18 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC | SBC |
| Charging Time | 3.5 hours | 3 hours |
| EQ | Yes (3 band) | Yes (Smart EQ mode) |
| Guitar Input | Yes | Yes |
| IP Rating | IPX4 | IPX4 |
| Microphone Input | Yes (Karaoke mode with echo effect) | Yes (Karaoke mode with echo effect) |
| Party Mode | No | Yes (Auracast) |
| Power Bank | Yes (USB-A, 5V/2.1A) | Yes (USB-C, 5V/1A) |
| Power Input | AC Power cord | AC Power cord |
| Stereo | Partially | Partially |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| USB Playback | Yes | Yes |
| Weight | 37.5 lbs (17 kg) | 37.7 lbs (17.1 kg) |
| Amplifier Power | 240W | 280W |
| Drivers | 2x 6.5" (165mm) woofers + 2x 2.5" (65mm) tweeters | 2x 6.5" (165mm) woofers + 2x 1" (25mm) PEN dome tweeters |
| Discontinued | Yes | - |
| Digital Aux Input | No | No |
| Lights | Yes | Yes |
| Wheels | Yes | Yes |
| Dimensions | 12.8"H x 27.1"W x 14.5"D (325.6 x 687.7 x 367.8 mm) | 26.1"H x 13.1"W x 14.8"D (662.5 x 334 x 375 mm) |
| Bluetooth Version | 5.1 | 6.0 |
| Inputs | - | Optical |
| Removable Battery | - | Yes |
Related Speaker Comparisons
How JBL Partybox 330 compares with other leading options:
- Sony ULT Tower 7 vs JBL Partybox 330
- JBL Partybox 330 vs JBL Partybox Stage 320
- Sony ULT Tower 5 vs JBL Partybox 330
- JBL Partybox 330 vs JBL Partybox Club 120
- JBL Partybox 130 vs JBL Partybox 330
Prices on this page were last checked September 23, 2026 at 11:24 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
JBL Partybox 310: $499.95 Discontinued Amazon eBay
Pros: Absolute deepest bass of any battery powered speaker, most balanced sound in the class, handle and wheels are convenient. Increase treble one step in the app EQ to make it more neutral. Customizable color lighting modes. Very close to the JBL Partybox Stage 320 in terms of performance. Measured bass extension of 32Hz (-10dB).
Cons: Very large. Discontinued.
Full JBL Partybox 310 review and specifications →
| Amplifier Power | 240W |
|---|---|
| App | Yes |
| Aux Input | Yes |
| Bass Extension (-10dB) | 32Hz |
| Battery Life | 18 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.1 |
| Charging Time | 3.5 hours |
| Digital Aux Input | No |
| Dimensions | 12.8"H x 27.1"W x 14.5"D (325.6 x 687.7 x 367.8 mm) |
| Discontinued | Yes |
| Drivers | 2x 6.5" (165mm) woofers + 2x 2.5" (65mm) tweeters |
| EQ | Yes (3 band) |
| Guitar Input | Yes |
| IP Rating | IPX4 |
| Lights | Yes |
| Microphone Input | Yes (Karaoke mode with echo effect) |
| Omnidirectional | No |
| Party Mode | No |
| Power Bank | Yes (USB-A, 5V/2.1A) |
| Power Input | AC Power cord |
| Stereo | Partially |
| TWS | Yes |
| USB Playback | Yes |
| Weight | 37.5 lbs (17 kg) |
| Wheels | Yes |
- Links
- Reviews, Comparisons and Sound Samples
- KULAS TECH SHOW: JBL Partybox 310, 100, on the Go Sound comparison More from KULASTECHSHOW20 →
- Flossy Carter: JBL PartyBox 310 vs PartyBox 300 More from FlossyCarter →
- DLX Willington: SONY SRS XP700 vs JBL PARTYBOX 310 First Impressions Binaural Sound Sample Sound Comparison More from DLXWillington →
- GYMCADDY: Soundboks Go Vs JBL Partybox 310 Vs Sony XP700 More from GYMCADDY →
- Jay’s Straight Up Reviews & More: Basement Bass Battle 💣 Sony XV800 ☢️ LG XL7 🔆 JBL Partybox 310 ☣️ All Plugged in, Sound Comparison More from JaysStraightUpReviews →
- Jay’s Straight Up Reviews & More: JBL Partybox Stage 320 vs 310 🛜 Defcon 5🚨 Bass Alert! Take Shelter Immediately! 😲 Best Bass Goes To?
- Jay’s Straight Up Reviews & More: JBL Partybox Stage 320 vs 310 🥳 A Family Feud! Battery Powered🔋Bluetooth Party Speakers Face-Off🤬
- Jay’s Straight Up Reviews & More: LG XL7 vs JBL Partybox 310 🏠 Indoor Bluetooth Party Speaker Battle. Plugged in🔌
- GYMCADDY: LG XBOOM XL7 Vs JBL Partybox 310 Vs Sony XP700
- Stereo Specs: JBL PARTYBOX 310 VS SONY GTK XB72 SOUND TEST COMPARISON
- Jay’s Straight Up Reviews & More: Sony SRS-XV900 vs JBL Partybox 310 - Can the JBL Middleweight 💪🏽 Compete With The Sony Heavyweight?
- Head-to-Head Comparisons
- JBL Partybox 310 vs JBL Partybox Stage 320
- JBL Partybox 310 vs JBL Partybox Club 120
- JBL Partybox 310 vs JBL Partybox 130
- JBL Partybox 310 vs JBL Partybox 100
- JBL Partybox 310 vs JBL Partybox 110
- JBL Partybox 310 vs JBL Partybox 300
- JBL Partybox 310 vs Onn XL Wireless Party Speaker
- JBL Partybox 310 vs Zealot PT21
- See all 31 comparisons
JBL Partybox 330: $549.95 Amazon B&H Photo Video eBay
Pros: A highly complete rolling party speaker: removable battery, telescoping handle and wheels, light show, Auracast, USB-C lossless and optical inputs, plus dual mic/guitar inputs. It supplies a little more power than the JBL Partybox 310 and JBL Partybox Stage 320, while reviewers report better midrange clarity than the older JBL Partybox 310 and the same deep party-speaker bass.
Cons: It remains very large and heavy, and the sound improvement over the JBL Partybox Stage 320 is modest rather than transformational. JBL removed the dedicated mic gain/control knobs found on earlier models, a real drawback for frequent karaoke use. Do not upgrade from a JBL Partybox 310 or JBL Partybox Stage 320 just for the higher watt figure.
Full JBL Partybox 330 review and specifications →
| Amplifier Power | 280W |
|---|---|
| App | Yes |
| Aux Input | Yes |
| Battery Life | 18 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 6.0 |
| Charging Time | 3 hours |
| Digital Aux Input | No |
| Dimensions | 26.1"H x 13.1"W x 14.8"D (662.5 x 334 x 375 mm) |
| Drivers | 2x 6.5" (165mm) woofers + 2x 1" (25mm) PEN dome tweeters |
| EQ | Yes (Smart EQ mode) |
| Guitar Input | Yes |
| IP Rating | IPX4 |
| Inputs | Optical |
| Lights | Yes |
| Microphone Input | Yes (Karaoke mode with echo effect) |
| Omnidirectional | No |
| Party Mode | Yes (Auracast) |
| Power Bank | Yes (USB-C, 5V/1A) |
| Power Input | AC Power cord |
| Removable Battery | Yes |
| Stereo | Partially |
| TWS | Yes |
| USB Playback | Yes |
| Weight | 37.7 lbs (17.1 kg) |
| Wheels | Yes |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- JBL Partybox 330 vs JBL Partybox Stage 320
- JBL Partybox 330 vs Sony ULT Tower 7
- JBL Partybox 330 vs Sony ULT Tower 5
- JBL Partybox 330 vs JBL Partybox Club 120
- JBL Partybox 330 vs JBL Partybox 130
- JBL Partybox 330 vs JBL Partybox 100
- JBL Partybox 330 vs JBL Partybox 110
- JBL Partybox 330 vs JBL Partybox 300
- See all 73 comparisons