Short answer: the JBL Partybox Stage 320 for better sound quality, the Sony ULT Tower 5 for the lower price. The JBL Partybox Stage 320 ranks #3 of 53 party speakers at $499.95. The Sony ULT Tower 5 ranks #5 at $449.99, $49.96 cheaper.
Both are removable-battery party speakers built around a single dual-tweeter cabinet, but they’re sized for different jobs. The Tower 5 packs a single 9-inch woofer, 10-band EQ and balanced XLR/RCA/USB-C connectivity into a smaller, lighter case, while the Stage 320 uses a dual 6.5-inch woofer layout with a handle and wheels built for rolling it to the party rather than carrying it.
The Tower 5 advantage: At 12.7kg it’s roughly a third lighter than the Stage 320’s 16.5kg, with a longer claimed battery life, finer 10-band EQ, and XLR/USB-C inputs the Stage 320 doesn’t have.
The Stage 320 advantage: Its handle-and-wheels design and dual-woofer layout suit a speaker that’s going to sit in one spot for a whole event rather than get carried around. Compare the input rows and dimensions below before choosing.
Buy the Sony ULT Tower 5 if the price is the priority over sound quality, or the JBL Partybox Stage 320 if sound quality is the priority over the price.
Want more options? Browse the full Portable Bluetooth rankings.
Specifications Side By Side
| Sony ULT Tower 5 | JBL Partybox Stage 320 | |
|---|---|---|
| Price | $449.99 | $499.95 |
| Ranked | #5 of 53 in Party Size Portable Bluetooth Speakers | #3 of 53 in Party Size Portable Bluetooth Speakers |
| App | Yes (Sony Sound Connect) | Yes |
| Aux Input | RCA input | Yes |
| Battery Life | 20 hours (manufacturer specified) | 18 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC, AAC, LDAC | SBC |
| Bluetooth Version | 5.3 | 5.4 |
| Built in Microphone | No | - |
| Digital Aux Input | Yes (USB-C) | No |
| Dimensions | 14.1" x 21.1" x 11.1" (358 x 536 x 282 mm) | - |
| Drivers | 3 drivers: 1x 9" woofer, 2x 2.4" tweeter | 2x 6.5" woofers, 2x 25mm tweeters |
| EQ | Yes (10 band; ULT1 / ULT2 / Flat) | Yes (5 band) |
| Guitar Input | No | Yes |
| IP Rating | IPX4 | IPX4 |
| Microphone Input | Yes | Yes (Karaoke mode with echo effect) |
| Omnidirectional | No | No |
| Output Power | 300W | 240W |
| Party Mode | Yes (Auracast) | Yes (Auracast) |
| Power Bank | Yes (USB-C charging) | Yes (USB-A, 5V/2.1A) |
| Power Input | AC power cord | AC Power cord |
| Removable Battery | Yes | Yes |
| Stereo | Yes | Partially |
| TWS | Yes (Stereo Pair) | Yes |
| USB Playback | Yes (USB-A and USB-C) | Yes |
| Weight | 28 lbs (12.7 kg) | 36.4 lbs (16.5 kg) |
| Wifi | No | - |
Related Speaker Comparisons
More top alternatives to JBL Partybox Stage 320:
- 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
- JBL Partybox Club 120 vs JBL Partybox Stage 320
- JBL Partybox 130 vs JBL Partybox Stage 320
Prices on this page were last checked September 12, 2026 at 9:50 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
Sony ULT Tower 5: $449.99 Amazon eBay
Pros: At $449.99, its 300W system with a 9-inch woofer delivers a notably capable party-speaker package: a removable 20-hour battery, IPX4 splash resistance, 10-band EQ and ULT1/ULT2 modes. AudioTribe’s first impressions praise its deeper bass and clearer sound than the JBL PartyBox Club 120; it also has USB-C and USB-A, RCA, balanced XLR and mic inputs for DJ and karaoke use.
Cons: It has a shorter 20-hour battery claim than the Tower 7’s 30 hours, no wheels, and only IPX4 splash resistance. Its single-woofer, two-tweeter layout lacks the Tower 7’s 360-degree rear-driver array, and the reviewer describes the sound assessment as first impressions rather than a controlled measurement comparison.
Full Sony ULT Tower 5 review and specifications →
| App | Yes (Sony Sound Connect) |
|---|---|
| Aux Input | RCA input |
| Battery Life | 20 hours (manufacturer specified) |
| Bluetooth Codecs | SBC, AAC, LDAC |
| Bluetooth Version | 5.3 |
| Built in Microphone | No |
| Digital Aux Input | Yes (USB-C) |
| Dimensions | 14.1" x 21.1" x 11.1" (358 x 536 x 282 mm) |
| Drivers | 3 drivers: 1x 9" woofer, 2x 2.4" tweeter |
| EQ | Yes (10 band; ULT1 / ULT2 / Flat) |
| Guitar Input | No |
| IP Rating | IPX4 |
| Microphone Input | Yes |
| Omnidirectional | No |
| Output Power | 300W |
| Party Mode | Yes (Auracast) |
| Power Bank | Yes (USB-C charging) |
| Power Input | AC power cord |
| Removable Battery | Yes |
| Stereo | Yes |
| TWS | Yes (Stereo Pair) |
| USB Playback | Yes (USB-A and USB-C) |
| Weight | 28 lbs (12.7 kg) |
| Wifi | No |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
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 →
| 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 |
| Microphone Input | Yes (Karaoke mode with echo effect) |
| Omnidirectional | No |
| Output Power | 240W |
| 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) |
- 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 7
- JBL Partybox Stage 320 vs JBL Partybox Club 120
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