| Name | Sony ULT Tower 9 | Soundboks 4 |
|---|---|---|
| Image |  |
 |
| Type | Party | Party |
| MSRP | $899.99 | $999 |
| Released | 2025 | 2023 |
| Availability | Available | Available |
| Current price | Amazon | Amazon |
| Speaker configuration | ||
| Audio channels | 1.0 (mono) | 1.0 (mono) |
| Woofers | 1× 320 mm, 2×120 mm (mid-range) | 2× 10″ |
| Tweeters | 2× 50 mm (front), 2× 40 mm (back) | 1× comp. driver |
| Subwoofers | - | - |
| Audio specs & features | ||
| Watts RMS | Not specified | 216 W |
| Frequency range | Not specified | 40 Hz - 20 kHz |
| Wireless stereo pairing? | ✔ TWS | ✔ via app |
| Party mode? (mono) | ✔ (Party Connect) | ✔ TeamUP (5 max) |
| Other (special) audio features? | Karaoke: mix music w/ mic input | None |
| Connectivity | ||
| Bluetooth version? | 5.3 | 5.0 |
| Wi-Fi? | ❌ | ❌ |
| NFC? (for pairing) | ❌ | ❌ |
| Radio? | ❌ | ❌ |
| Audio inputs & outputs | ||
| Buit-in mic? (and function) | ❌ | ❌ |
| Guitar/mic input? | 1× TRS (mic), 1× TRS (guitar/mic) | 2× TRS/XLR combo (guitar/mic) |
| USB-A playback? | ✔ | ❌ |
| 3.5 mm AUX in? | ✔ | ✔ |
| 3.5 mm AUX out? | ❌ | ✔ |
| Other in/outputs? | Optical in | ❌ |
| Battery, power & charging | ||
| Battery? | ✔ | ✔ |
| Battery life | 25 hours | 40 hours (mid vol.), 6 hours (max vol.) |
| Charge time | 3 hrs | 2 hrs |
| Battery capacity | ? | 99.84 Wh |
| Swappable battery? | ❌ | ✔ (extra battery sold separately) |
| Charging port(s): | AC | USB-C |
| Powerbank function? | Yes; 1× USB-A 7.5W | Yes; 1× USB-C 10W |
| Buttons & controls | ||
| Sound mode button(s)? | Bass boost | ❌ |
| Sound effect buttons? | Echo, Key control | ❌ |
| Other (special) buttons? | Guitar/mic vol. knobs | ❌ |
| App? | Sony Sound Connect | SOUNDBOKS app |
| Voice assistant? | ❌ | ❌ |
| Lights | ||
| Colored LEDS? | 2× ring (top, bottom) | ❌ |
| Strobe LEDS? | ❌ | ❌ |
| Size & weight | ||
| Size (cm H×W×D): | 91.0×41.0×45.6 | 66.0×43×32 |
| Size (inch H×W×D): | 35.9×16.2×18.0 | 25.98×16.93×12.60 |
| Weight (kg): | 29.6 | 16.1 |
| Weight (lbs): | 65.26 | 35.5 |
| Physical features | ||
| IP Code | None | IP65 |
| Transportation method? | Wheels, handles | 1 handle |
| Color options: | 1 color: Black | 2 colors: Black, gray |
| Other features? | Mic holders | Detachable grill, pole mount |
| In the box | ||
| Charger/cables? | AC power cable, Optical cable | Power adapter not included! (+$59) |
| Accessories? | - | Grill removal tool |
| More info | ||
| Model number | YY7864E, SRS-ULT900 | 11-SB4_B |
| User guide / manual | Help Guide | User Manual |
| Official site link: | Sony.com | Soundboks.com |
Sony ULT Tower 9 vs Soundboks 4
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