In a world saturated with portable speakers, Sony is making a loud statement with its new ULT Power Sound series. The ULT Field 7 aims to be the life of the party, promising ground-shaking bass you can feel, not just hear. It’s a bold claim that challenges the established leaders in go-anywhere audio.
Sony’s latest portable powerhouse, the ULT Field 7, is a speaker built with a singular, unapologetic focus: bass. From its rugged design to its feature set, everything is engineered to deliver low-end frequencies that dominate the soundscape. It’s a large, substantial unit, tipping the scales at over 14 pounds. While the comfortable, well-placed handles make it manageable to carry from the car to the backyard, its heft pushes the definition of “portable.” However, that size is justified by its robust construction. With an IP67 rating, the Field 7 is completely dustproof and can be fully submerged in water, making it an ideal companion for beach trips, poolside parties, or dusty campsites. The build quality is classic Sony—solid, clean, and durable, with a fabric grille and sturdy plastic housing that feels ready for action.
The star of the show is the prominent “ULT” button. This isn’t just a simple bass boost; it offers two distinct levels of enhancement. ULT1 delivers a deep, resonant bass that adds weight and warmth to tracks, ideal for hip-hop or electronic music. ULT2 kicks things up a notch, providing a punchier, more aggressive bass that you can physically feel, perfect for high-energy party anthems. The effect is undeniable and genuinely impressive, powered by Sony’s X-Balanced speaker units which manage to push massive air without succumbing to distortion at high volumes. The trade-off, however, is that this bass-forward tuning can sometimes crowd out the mids and highs, sacrificing a bit of clarity for raw power. Audiophiles seeking a neutral sound signature should look elsewhere; this speaker is for those who want to feel the beat.
Beyond the bass, the Field 7 is packed with thoughtful features. Battery life is a standout, rated for up to 30 hours, though expect that number to drop significantly with the volume cranked, ULT modes engaged, and the ambient LED lights pulsing. Connectivity is excellent, with Bluetooth 5.2 supporting the high-resolution LDAC codec for compatible devices. A unique and highly valuable addition is the quarter-inch input, complete with its own gain control, allowing you to plug in a microphone for karaoke or a guitar for a small jam session. The Sony Music Center app provides control over lighting, EQ settings, and the Party Connect feature, which allows you to sync up to 100 compatible speakers for a massive wall of sound.
Ultimately, the Sony ULT Field 7 carves out a specific niche. It’s not trying to be the most balanced or portable speaker on the market. Instead, it’s a specialized tool for generating a party atmosphere anywhere you go. It delivers on its promise of powerful, tangible bass in a durable, feature-rich package. For those who prioritize a fun, high-energy listening experience over critical, analytical sound, the Field 7 is a compelling and formidable contender in the portable party speaker arena.
Where to Buy:
Sony ULT Field 7 Portable Speaker Quick Summary
Key Scores:
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Value:
80% -
Design:
78% -
Performance:
86% -
Quality:
90% -
Popularity:
82%
Top Pros
- ✅ Powerful, room-filling sound with deep and impactful bass modes.
- ✅ Excellent IP67 rating makes it truly dustproof and waterproof.
- ✅ Impressive 30-hour battery life provides all-day listening power.
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Key Cons
- ❌ Large size and significant weight challenge its overall portability.
- ❌ Aggressive bass focus can overshadow mid-range and treble details.
- ❌ Premium price point places it in a highly competitive category.
