Short answer: the Sony ULT Tower 7. It ranks #1 of 44 party speakers by sound quality (rated 4.7/5) at $648 and is still sold new; the Soundboks Go ranks #30 (rated 3.1/5) and is discontinued, so it is only an option used.
The Sony ULT Tower 7 is the better-sounding, tougher option. A compelling large-party value at $648: 420W output, an IPX4-rated 30-hour battery, 360-degree sound, wheels and four carry handles at 50.3 lbs (22.8 kg). It is rated IPX4, while the Soundboks Go has no water resistance. It supports LDAC Bluetooth, which the Soundboks Go lacks. It has an adjustable EQ, which the Soundboks Go lacks. The tradeoff: 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.
The Soundboks Go is the longer-running, lighter option. Exceptional 40-hour battery life at mid-volume (10 hours at full volume), swappable design (second battery $200 available). It is rated for 40 hours of battery against 30 for the Sony ULT Tower 7. At 19.8 lbs (9 kg) it weighs much less than the Sony ULT Tower 7 at 50.3 lbs (22.8 kg). The catch: Not as loud as the other Soundboks.
Buy the Sony ULT Tower 7. It is rated higher for sound quality, and the Soundboks Go is discontinued, so it is only available used.
Want more options? Browse the full Portable Bluetooth rankings.
Specifications Side By Side
| Sony ULT Tower 7 | Soundboks Go | |
|---|---|---|
| Price | $648.00 | $799 Discontinued |
| Ranked | #1 of 44 in Party Size Portable Bluetooth Speakers | #30 of 44 in Party Size Portable Bluetooth Speakers |
| App | Yes (Sony Sound Connect) | No |
| Aux Input | RCA input | Yes |
| Battery Life | 30 hours (lights off; manufacturer specified) | 40 hours (Manufacturer specified) |
| Bluetooth | Yes | Yes |
| 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) | 18” x 12” x 10” (457.2 x 304.8 x 254 mm) |
| Drivers | 7 drivers: 1x woofer, 2x midrange, 2x front tweeter, 2x rear tweeter | 10” woofer, 1” tweeter |
| EQ | Yes (10 band; ULT1 / ULT2 / Flat) | No |
| Guitar Input | No | - |
| IP Rating | IPX4 | None |
| Microphone Input | Yes | - |
| Omnidirectional | Yes (360 degree Party Sound) | No |
| Amplifier Power | 420W | 2 x 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) | No |
| USB Playback | Yes (USB-A) | No |
| Weight | 50.3 lbs (22.8 kg) | 19.8 lbs (9 kg) |
| Wi-Fi | No | - |
| Lights | Yes | - |
| Wheels | Yes | - |
| Strap | No | - |
| Bass Extension (-10dB) | - | 55Hz |
| Frequency Response | - | 40Hz - 20kHz (Manufacturer specified) |
| Maximum SPL | - | 121dB (Manufacturer specified) |
Related Speaker Comparisons
How Sony ULT Tower 7 compares with other leading options:
- Sony ULT Tower 7 vs JBL Partybox 330
- Sony ULT Tower 7 vs JBL Partybox Stage 320
- Sony ULT Tower 7 vs JBL Partybox 310
- Sony ULT Tower 5 vs Sony ULT Tower 7
- JBL Partybox Club 120 vs Sony ULT Tower 7
Prices on this page were last checked October 4, 2026 at 9:58 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: $648.00 Amazon eBay
Pros: A compelling large-party value at $648: 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 | Yes |
| 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 |
| Strap | No |
| 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 JBL Partybox 310
- Sony ULT Tower 7 vs Sony ULT Tower 5
- Sony ULT Tower 7 vs JBL Partybox Club 120
- Sony ULT Tower 7 vs JBL Partybox 130
- Sony ULT Tower 7 vs JBL Partybox 100
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Soundboks Go: $799 Discontinued eBay
Newer model: the Soundboks Mix, ranked higher, rated 3.2/5.
Pros: Exceptional 40-hour battery life at mid-volume (10 hours at full volume), swappable design (second battery $200 available). 7.8Ah Li-ion with external charging option and pass-through charging capability. 121dB max volume (Bass+ mode). Premium audio quality, durable ABS polycarbonate with rubberized bumpers. Portable enough for vehicle adventures. High efficiency drivers reach 2-3x the volume of typical speakers for the same wattage. Measured bass extension of 55Hz (-10dB).
Cons: Not as loud as the other Soundboks. Not as neutral or as much bass as the above Partyboxes. Not stereo. External power brick for charging. Discontinued; Soundboks has removed it from their lineup and the product page is gone.
Full Soundboks Go review and specifications →
| Amplifier Power | 2 x 72W |
|---|---|
| App | No |
| Aux Input | Yes |
| Bass Extension (-10dB) | 55Hz |
| Battery Life | 40 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.0 |
| Digital Aux Input | No |
| Dimensions | 18” x 12” x 10” (457.2 x 304.8 x 254 mm) |
| Drivers | 10” woofer, 1” tweeter |
| EQ | No |
| Frequency Response | 40Hz - 20kHz (Manufacturer specified) |
| IP Rating | None |
| Maximum SPL | 121dB (Manufacturer specified) |
| Omnidirectional | No |
| Party Mode | Yes (TeamUp, up to 5 speakers) |
| Power Bank | No |
| Power Input | AC Power cord |
| Removable Battery | Yes |
| Stereo | Yes |
| TWS | No |
| USB Playback | No |
| Weight | 19.8 lbs (9 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- GYMCADDY: Soundboks Go Vs Soundboks 3 - Which One Is Right For You? More from GYMCADDY →
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