Different classes, so treat this as a step-up-or-not question rather than a head-to-head. The Sony ULT Tower 9 ranks #9 of 12 large party speakers by sound quality at $748; the W-King T12 ranks #19 of 40 party speakers by sound quality at $379.04.
The case for the Sony ULT Tower 9: Slightly better sounding than the ULT Tower 10. The tradeoff: Not as deep of bass and loses more bass at high volume even compared to the lower end Partybox speakers.
The case for the W-King T12: A large, capable karaoke-party package with dual 8-inch woofers, independent bass and treble controls, mic and guitar inputs with echo, USB and microSD playback, USB-A charging and TWS pairing. The tradeoff: Reviewer comparisons find the tuning boxy and less clear than the better-ranked party speakers, so its size and quoted power do not automatically translate to refined sound.
Buy the Sony ULT Tower 9 at $748 for a large party speaker, or the W-King T12 at $379.04 for a party speaker instead.
Looking for alternatives? See the complete Portable Bluetooth rankings.
Specifications Side By Side
| Sony ULT Tower 9 | W-King T12 | |
|---|---|---|
| Price | $748.00 | $379.04 |
| Ranked | #9 of 12 in Large Party Size Portable Bluetooth Speakers | #19 of 40 in Party Size Portable Bluetooth Speakers |
| App | Yes | No |
| Aux Input | Yes | Yes |
| Battery Life | 25 hours (Manufacturer specified) | 25 hours (Manufacturer specified) |
| EQ | Yes (10 band) | Yes (Bass and treble) |
| Guitar Input | Yes | Yes |
| Microphone Input | Yes (Karaoke mode with echo effect) | Yes (Karaoke mode with echo effect) |
| Party Mode | Yes (Auracast up to 100 speakers) | No |
| Power Bank | Yes (USB-A, 5V/1.5A) | Yes (USB-A) |
| Power Input | AC Power cord | AC Power cord |
| Removable Battery | No | No |
| TWS | Yes | Yes |
| USB Playback | Yes | Yes |
| Weight | 65.3 lbs (29.6 kg) | 33.1 lbs (15 kg) |
| Built-in Microphone | No | No |
| IP Rating | None | None |
| Stereo | Yes | Yes |
| Omnidirectional | No | No |
| Wi-Fi | No | No |
| Bluetooth Codecs | SBC, AAC, LDAC | SBC |
| Bluetooth Version | 5.3 | 5.4 |
| Dimensions | 16.1” x 35.8” x 18” (410 x 910 x 456 mm) | 13.7” x 29.6” x 13.6” (347 x 751 x 346 mm) |
| Drivers | 7 drivers: 1x 12.6”x12.6” woofer, 2x 4.7” midrange, 2x 2” tweeter, 2x 1.6” rear tweeter | 2x 8” subwoofer, 2x 1.5” dome tweeter |
| Amplifier Power | 148W | 370W |
| Digital Aux Input | No | No |
| Lights | Yes | Yes |
| Strap | No | No |
| MicroSD Playback | - | Yes |
| Wheels | - | Yes |
Related Speaker Comparisons
More worthwhile head-to-heads for W-King T12:
- Sony ULT Tower 7 vs W-King T12
- JBL Partybox 330 vs W-King T12
- JBL Partybox Stage 320 vs W-King T12
- JBL Partybox 310 vs W-King T12
- Sony ULT Tower 5 vs W-King T12
Prices on this page were last checked September 26, 2026 at 11:14 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 9: $748.00 Amazon eBay
Older model: the Sony SRS-XV900 (rated 3.7/5).
Pros: Slightly better sounding than the ULT Tower 10
Cons: Not as deep of bass and loses more bass at high volume even compared to the lower end Partybox speakers. Bass drops off a lot at higher volumes. Not quite as loud as the ULT Tower 10
Full Sony ULT Tower 9 review and specifications →
| Amplifier Power | 148W |
|---|---|
| App | Yes |
| Aux Input | Yes |
| Battery Life | 25 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC, AAC, LDAC |
| Bluetooth Version | 5.3 |
| Built-in Microphone | No |
| Digital Aux Input | No |
| Dimensions | 16.1” x 35.8” x 18” (410 x 910 x 456 mm) |
| Drivers | 7 drivers: 1x 12.6”x12.6” woofer, 2x 4.7” midrange, 2x 2” tweeter, 2x 1.6” rear tweeter |
| EQ | Yes (10 band) |
| Guitar Input | Yes |
| IP Rating | None |
| Lights | Yes |
| Microphone Input | Yes (Karaoke mode with echo effect) |
| Omnidirectional | No |
| Party Mode | Yes (Auracast up to 100 speakers) |
| Power Bank | Yes (USB-A, 5V/1.5A) |
| Power Input | AC Power cord |
| Removable Battery | No |
| Stereo | Yes |
| Strap | No |
| TWS | Yes |
| USB Playback | Yes |
| Weight | 65.3 lbs (29.6 kg) |
| Wi-Fi | No |
- Links
- Reviews, Comparisons and Sound Samples
- Oluv Patreon: Sony ULT Tower 9 vs JBL Partybox 720 - indoor listening test More from Oluv’Sone →
- Oluv Patreon: Sony ULT Tower 9 vs JBL Partybox 720 - power generator test
- GYMCADDY: Sony ULT Tower 9 Vs Sony ULT Tower 10 - Size Doesn’t Matter More from GYMCADDY →
- GYMCADDY: Sony ULT Tower 9 Review - Amazing Instrument Separation
- GYMCADDY: JBL Partybox 720 Vs Sony ULT Tower 9
- Joy & Oluv’Sone 3DAudio & Music: Sony ULT9 vs JBL Partybox 720 - the king of battery powered party speakers
- Head-to-Head Comparisons
- Sony ULT Tower 9 vs Sony ULT Tower 10
- Sony ULT Tower 9 vs Teufel Rockster
- Sony ULT Tower 9 vs JBL Partybox 520
- Sony ULT Tower 9 vs Sony SRS-XV900
- Sony ULT Tower 9 vs JBL Partybox 710
- Sony ULT Tower 9 vs Marshall Bromley 750
- Sony ULT Tower 9 vs JBL Partybox 720
- Sony ULT Tower 9 vs Teufel Rockster 2
- See all 20 comparisons
W-King T12: $379.04 Amazon AliExpress eBay
Pros: A large, capable karaoke-party package with dual 8-inch woofers, independent bass and treble controls, mic and guitar inputs with echo, USB and microSD playback, USB-A charging and TWS pairing. Its claimed 25-hour battery and trolley-style form make it practical where high output matters more than compact size.
Cons: Reviewer comparisons find the tuning boxy and less clear than the better-ranked party speakers, so its size and quoted power do not automatically translate to refined sound. It is a 15kg, 75cm-tall speaker with no water rating and no app; the physical tone controls are its only meaningful way to adjust the sound.
Full W-King T12 review and specifications →
| Amplifier Power | 370W |
|---|---|
| App | No |
| Aux Input | Yes |
| Battery Life | 25 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.4 |
| Built-in Microphone | No |
| Digital Aux Input | No |
| Dimensions | 13.7” x 29.6” x 13.6” (347 x 751 x 346 mm) |
| Drivers | 2x 8” subwoofer, 2x 1.5” dome tweeter |
| EQ | Yes (Bass and treble) |
| Guitar Input | Yes |
| IP Rating | None |
| Lights | Yes |
| MicroSD Playback | Yes |
| Microphone Input | Yes (Karaoke mode with echo effect) |
| Omnidirectional | No |
| Party Mode | No |
| Power Bank | Yes (USB-A) |
| Power Input | AC Power cord |
| Removable Battery | No |
| Stereo | Yes |
| Strap | No |
| TWS | Yes |
| USB Playback | Yes |
| Weight | 33.1 lbs (15 kg) |
| Wheels | Yes |
| Wi-Fi | No |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons