The Sony ULT FIELD 7 is a large portable Bluetooth speaker built for loud, bass-heavy sound. It pairs two 114 mm X-Balanced woofers and two 46 mm tweeters with dual passive radiators, and adds two ULT bass modes plus a 7-band EQ in the Sony Music Center app. Its IP67 rating, 30-hour battery and vertical or horizontal placement make it a party and outdoor speaker. It is heavy at 6.3 kg, so it is a carry-around-the-house or car-trunk speaker rather than a backpack one. Against smaller rivals it trades portability for volume and low-end punch.
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Owners describe the ULT FIELD 7 as a loud, bass-forward party speaker that holds up outdoors. Most praise the low-end punch and rugged build; the main complaints are its weight and size.
The Sony ULT FIELD 7 is a wireless portable speaker with a 2-way system: 2 woofers, 2 tweeters and dual passive radiators. It has an IP67 rating, so it is waterproof, dustproof and rustproof. It can be placed horizontally or vertically, and built-in multi-color ambient LED lighting sits on the side passive radiators.
Two bass modes change the sound. ULT1 gives deep, low-frequency bass enhancement. ULT2 is a punchier, higher-impact mode. Sound Field Optimization measures ambient room noise and adjusts the EQ automatically. A custom 7-band EQ is available in the Sony | Music Center app.
The speaker runs on its internal rechargeable battery or on AC power. It connects over Bluetooth 5.2 and supports LDAC, AAC and SBC. Two ULT FIELD 7 speakers can be paired for left/right stereo sound, and Party Connect links up to 100 compatible Sony speakers. A 1/4-inch mic/guitar input and a USB-A port are included.
