Short answer: the Sony ULT Tower 7 for better sound quality, the JBL Partybox Stage 320 for the lower price. The Sony ULT Tower 7 ranks #1 of 53 party speakers at $649.99. The JBL Partybox Stage 320 ranks #3 at $499.95, $150.04 cheaper.
The Tower 7 is the larger, feature-richer Sony option. It has 420W output, a claimed 30-hour battery, a 360-degree seven-driver layout, 10-band EQ and RCA, XLR, USB-C and microphone inputs. The PartyBox Stage 320 is a more compact battery-powered JBL with a familiar PartyBox interface and wheels.
Choose the Tower 7 for broader coverage and wired inputs: Its rear tweeters and 360-degree presentation are intended to cover more of a room, while XLR and RCA make it more accommodating for DJ or karaoke hardware.
Choose the Stage 320 for compact transport: It weighs less and is easier to roll between rooms or events. Check the side-by-side specifications below for the battery, weight and input tradeoffs.
Buy the Sony ULT Tower 7 if sound quality matters more than the price. Buy the JBL Partybox Stage 320 if the price matters more than sound quality.
If battery life is a priority, the Sony ULT Tower 7 is rated for 30 hours versus 18 hours for the JBL Partybox Stage 320.
Still deciding? The full Portable Bluetooth rankings cover every ranked option.
Specifications Side By Side
| Sony ULT Tower 7 | JBL Partybox Stage 320 | |
|---|---|---|
| Price | $649.99 | $499.95 |
| Ranked | #1 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 | 30 hours (lights off; 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 | 13.7" x 16.6" x 28" (348 x 422 x 711 mm) | - |
| Drivers | 7 drivers: 1x woofer, 2x midrange, 2x front tweeter, 2x rear 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 | Yes (360 degree Party Sound) | No |
| Output Power | 420W | 240W |
| Party Mode | Yes (Auracast) | Yes (Auracast) |
| Power Bank | Yes (USB charging) | Yes (USB-A, 5V/2.1A) |
| Power Input | AC power cord | AC Power cord |
| Removable Battery | No | Yes |
| Stereo | Yes | Partially |
| TWS | Yes (Stereo Pair) | Yes |
| USB Playback | Yes (USB-A) | Yes |
| Weight | 50.3 lbs / 22.8 kg | 36.4 lbs / 16.5 kg |
| Wifi | No | - |
Related Speaker Comparisons
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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 7: $649.99 Amazon eBay
Pros: A compelling large-party value at $649.99: 420W output, an IPX4-rated 30-hour battery, 360-degree sound, wheels and four carry handles at 22.8kg. The full review praises its punchy, clean ULT1 bass, ULT2’s higher-output mode, simplified controls and unusually complete I/O: USB-C, USB-A, RCA, balanced XLR and mic input.
Cons: The reviewer notes that Auracast pairing is not backward-compatible with Sony’s older Party Connect speakers, and the hard-plastic corners lack protective rubber bumpers. IPX4 is splash resistance rather than full weatherproofing; the 30-hour claim requires lights off.
Full Sony ULT Tower 7 review and specifications →
| App | Yes (Sony Sound Connect) |
|---|---|
| Aux Input | RCA input |
| Battery Life | 30 hours (lights off; manufacturer specified) |
| Bluetooth Codecs | SBC, AAC, LDAC |
| Bluetooth Version | 5.3 |
| Built in Microphone | No |
| Digital Aux Input | Yes (USB-C) |
| Dimensions | 13.7" x 16.6" x 28" (348 x 422 x 711 mm) |
| Drivers | 7 drivers: 1x woofer, 2x midrange, 2x front tweeter, 2x rear tweeter |
| EQ | Yes (10 band; ULT1 / ULT2 / Flat) |
| Guitar Input | No |
| IP Rating | IPX4 |
| Microphone Input | Yes |
| Omnidirectional | Yes (360 degree Party Sound) |
| Output Power | 420W |
| Party Mode | Yes (Auracast) |
| Power Bank | Yes (USB charging) |
| Power Input | AC power cord |
| Removable Battery | No |
| Stereo | Yes |
| TWS | Yes (Stereo Pair) |
| USB Playback | Yes (USB-A) |
| Weight | 50.3 lbs / 22.8 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 →
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- 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 ?
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