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Sony ULT POWER SOUND™ series | ULT TOWER 9AC Party Speaker
Massive bass. Ultimate vibe.
Dive into the front row of a concert with a speaker built for music lovers. Experience heart-pounding audio with dynamic sound and massive bass. Get ready for the ultimate vibe.
All your favorite features in the box
- Press the ULT button to experience the powerful sound of ULT1 and ULT2 bass boost modes.
- 360° party sound carries powerful sound to every corner of the room.
- Powerful sound with X-Balanced Speaker Unit.
- Bring the festival feeling with 360° party light.
- Hear your music exactly as you like it with 10 Band Equalizer.
- Perfect karaoke partner.
- Enhance your video content with TV sound booster.
- Easy to move with handle and caster.
- Add an extra compatible speaker for stereo sound.
- Bluetooth Fast Pair and multipoint connection.
Dealers selling Sony near you
Room-shaking bass is the headline: the ULT TOWER 9AC pairs tunable low end with dual ULT modes and broad high-frequency dispersion from four tweeters, delivering authentic 360° Party Sound plus synchronized lighting for immersive events. App control and optical input expand connectivity, and the Post Malone collaboration is highlighted by Best of High End.
Pros
- Tunable bass with ULT1/ULT2 modes lets users choose deep or punchy low end tailored to party or music listening.
- Wide, room-filling coverage and clarity from a multi‑driver array (including four tweeters) combined with 360° Party Sound and synchronized lights for large gatherings.
- Robust feature set and connectivity—Sound Connect app compatibility, optical input, karaoke/guitar support and TV Sound Booster—make it versatile beyond just music playback.
Sound Quality
84/100
Bass
88/100
Driver complement lists woofer + multiple mid/tweeter elements and the product is positioned as a party tower, implying emphasis on low end. At $749, Sony likely tunes for impactful, room-filling bass for casual/listening-party use; lacking review measurements, score is generous but conservative relative to multi-woofer towers.
Mid
85/100
Configuration includes woofer/mid (L/R), suggesting dedicated midrange drivers for vocal and instrumental clarity. No reviewer timbre data available; score assumes competent voicing typical of Sony party-class designs with decent coherence through crossover regions.
Treble
82/100
Multiple tweeters (including rear tweeters) indicate emphasis on high-frequency dispersion and added 'air' for large-room coverage. Without reviewer reports on brightness or harshness, score is modestly positive but restrained to allow for potential party-sound tuning.
Soundstage Imaging
80/100
Rear tweeters and multi-driver layout imply a wide, room-filling soundstage suitable for parties, though imaging precision for critical listening is likely secondary. No placement/room-sensitivity reports available; score reflects likely broad but not ultra-focused imaging.
Dynamics
84/100
Designed as a powered party tower with substantial driver array and mains power, so macro dynamics and transient slam should be strong for lively playback. Absence of reviewer comments on headroom forces a conservative but positive mark.
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Build Quality
82/100
Sony typically uses solid enclosures and robust finishes for this product class; supplied accessories (optical cable, AC cord) and clear driver layout point to competent engineering. No reviewer teardown or crossover details available, so score is optimistic but cautious.
Features Connectivity
86/100
Unit is powered and includes Sound Connect app compatibility, optical input and mains power; network standby spec provided. For an active party tower this is a strong and practical feature set (wireless/app control likely present), so the score reflects useful connectivity rather than passive baseline.
Value for Money
78/100
At $749.99 the speaker sits in the mid-premium party-tower segment. With no reviewer performance comparisons or explicit praise, value is judged as reasonable for a well-featured Sony tower but not exceptional without measurements or comparative reviews.
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