These are not really the same size class, and that is the honest framing here. The Sony ULT Tower 7 ranks #1 of 39 party speakers by sound quality at $649.99; the Soundboks 4 ranks #6 of 14 battery-powered PA speakers by sound quality at $1199.
This pits Sony’s Tower 7, a 360-degree consumer party speaker, against the Soundboks 4, a performer-focused battery PA. The Tower 7 offers seven drivers for 360-degree sound, a claimed 30-hour battery, wheels, IPX4 splash resistance, 10-band EQ and a full RCA/XLR/USB-C/mic input section. The Soundboks 4 offers dual 10-inch woofers rated to 126dB max SPL, a removable 40-hour battery, IP65 weatherproofing, and XLR/instrument combo inputs.
Choose the Tower 7 for wheels for easier transport, immersive 360-degree party sound and a lower price: Its wheels also make it easier to roll between rooms or events. Its 360-degree drivers and ULT1/ULT2/EQ modes suit a living-room-to-backyard party speaker better than a performer-focused PA cabinet. At $649.99 it also costs less.
Choose the Soundboks 4 for higher peak output and full weatherproofing: Its claimed 40h battery beats the Tower 7’s 30h.
Buy the Sony ULT Tower 7 ($649.99) for a party speaker; the Soundboks 4 ($1199) suits a battery-powered PA speaker instead.
Want more options? Browse the full Portable Bluetooth rankings and PA & Live Sound rankings.
Specifications Side By Side
| Sony ULT Tower 7 | Soundboks 4 | |
|---|---|---|
| Price | $649.99 | $1199 |
| Ranked | #1 of 39 in Party Size Portable Bluetooth Speakers | #6 of 14 in Battery-Powered PA Speakers |
| App | Yes (Sony Sound Connect) | Yes |
| Aux Input | RCA input | Yes |
| Battery Life | 30 hours (lights off; manufacturer specified) | 40 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC, AAC, LDAC | SBC |
| Bluetooth Version | 5.3 | 5.0 |
| 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) | 25.6" x 17" x 13" (650.2 x 431.8 x 330.2 mm) |
| Drivers | 7 drivers: 1x woofer, 2x midrange, 2x front tweeter, 2x rear tweeter | 2x 10" woofers, 1" compression driver |
| EQ | Yes (10 band; ULT1 / ULT2 / Flat) | Yes |
| Guitar Input | No | Yes |
| IP Rating | IPX4 | IP65 |
| Microphone Input | Yes | Yes |
| Omnidirectional | Yes (360 degree Party Sound) | No |
| Amplifier Power | 420W | 216W (3x 72W) |
| Party Mode | Yes (Auracast) | Yes (TeamUp, up to 5 speakers) |
| Power Bank | Yes (USB charging) | No |
| Power Input | AC power cord | AC Power cord |
| Removable Battery | No | Yes |
| Stereo | Yes | Yes |
| TWS | Yes (Stereo Pair) | Yes |
| USB Playback | Yes (USB-A) | No |
| Weight | 50.3 lbs (22.8 kg) | 34 lbs (15.4 kg) |
| Wi-Fi | No | - |
| Lights | Yes | - |
| Wheels | Yes | - |
| Bass Extension (-10dB) | - | 52Hz |
| Frequency Response | - | 40Hz - 20kHz (Manufacturer specified) |
| Inputs | - | 2x XLR/6.3mm combo (mic/instrument), 3.5mm stereo, Bluetooth |
| Maximum SPL | - | 126dB |
| XLR Input | - | Yes (2x combo) |
| SKAA | - | Yes |
| Configuration | - | Battery-powered 3-way active PA |
| Cabinet Material | - | Poplar plywood |
| Rigging | - | Not specified |
| Coverage | - | Not specified |
| Bass Extension (-3dB) | - | Not specified |
| DSP | - | App EQ |
| Bluetooth | - | Yes |
Related Speaker Comparisons
More worthwhile head-to-heads for Sony ULT Tower 7:
- Sony ULT Tower 7 vs JBL Partybox 330
- Sony ULT Tower 7 vs JBL Partybox Stage 320
- Sony ULT Tower 5 vs Sony ULT Tower 7
- Sony ULT Tower 7 vs Sony SRS-XP700
- Sony ULT Tower 7 vs Sony SRS-XP500
Prices on this page were last checked September 15, 2026 at 12:52 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.
As an eBay Partner, we may be compensated if you make a purchase.
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 →
| Amplifier Power | 420W |
|---|---|
| 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 |
| Lights | Yes |
| Microphone Input | Yes |
| Omnidirectional | Yes (360 degree Party Sound) |
| 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) |
| Wheels | Yes |
| Wi-Fi | No |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Sony ULT Tower 7 vs JBL Partybox 330
- Sony ULT Tower 7 vs JBL Partybox Stage 320
- Sony ULT Tower 7 vs Sony ULT Tower 5
- Sony ULT Tower 7 vs Sony SRS-XP700
- Sony ULT Tower 7 vs Sony SRS-XP500
- Sony ULT Tower 7 vs JBL Partybox 520
- Sony ULT Tower 7 vs Sony ULT Tower Max
- Sony ULT Tower 7 vs Sony ULT Tower 9
- See all 22 comparisons
Soundboks 4: $1199 Soundboks Amazon eBay
Pros: Tied for the loudest battery powered speaker. Removable 40 hour battery. High efficiency drivers reach 2-3x the volume of typical speakers for the same wattage. Measured bass extension of 52Hz (-10dB).
Cons: Very large. Not as neutral or as deep of bass as the above Partyboxes. Not stereo. External power brick for charging.
Full Soundboks 4 review and specifications →
| Amplifier Power | 216W (3x 72W) |
|---|---|
| App | Yes |
| Aux Input | Yes |
| Bass Extension (-10dB) | 52Hz |
| Bass Extension (-3dB) | Not specified |
| Battery Life | 40 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.0 |
| Cabinet Material | Poplar plywood |
| Configuration | Battery-powered 3-way active PA |
| Coverage | Not specified |
| DSP | App EQ |
| Digital Aux Input | No |
| Dimensions | 25.6" x 17" x 13" (650.2 x 431.8 x 330.2 mm) |
| Drivers | 2x 10" woofers, 1" compression driver |
| EQ | Yes |
| Frequency Response | 40Hz - 20kHz (Manufacturer specified) |
| Guitar Input | Yes |
| IP Rating | IP65 |
| Inputs | 2x XLR/6.3mm combo (mic/instrument), 3.5mm stereo, Bluetooth |
| Maximum SPL | 126dB |
| Microphone Input | Yes |
| Omnidirectional | No |
| Party Mode | Yes (TeamUp, up to 5 speakers) |
| Power Bank | No |
| Power Input | AC Power cord |
| Removable Battery | Yes |
| Rigging | Not specified |
| SKAA | Yes |
| Stereo | Yes |
| TWS | Yes |
| USB Playback | No |
| Weight | 34 lbs (15.4 kg) |
| XLR Input | Yes (2x combo) |
- Links
- Reviews, Comparisons and Sound Samples
- GYMCADDY: SOUNDBOKS Gen 4 Review - Better Sound And More Power Efficient More from GYMCADDY →
- Flossy Carter: SOUNDBOKS 4 - The World’s LOUDEST Bluetooth Speaker! More from FlossyCarter →
- Oluv Patreon: SoundBoks 4 vs Stormbox Blast - first impressions More from Oluv’Sone →
- GYMCADDY: JBL Partybox Ultimate Vs SOUNDBOKS 4 & Sony XV900 - Is It Worth It?
- M1MTechChannel: SOUNDBOKS hat gekocht: Die neue MIX liefert brutal ab! More from M1MTechChannel →
- Head-to-Head Comparisons