These are not really the same size class, and that is the honest framing here. The Sony ULT Field 7 ranks #61 of 113 boombox speakers by sound quality at $448; the Klipsch Detroit ranks #81 of 120 large speakers by sound quality at $235.11.
The Sony ULT Field 7 is the longer-running choice. A waterproof stereo party speaker with a 30 hour battery and karaoke mic and guitar inputs. It is rated for 30 hours of battery against 20 for the Klipsch Detroit. It supports LDAC Bluetooth, which the Klipsch Detroit lacks. It has an adjustable EQ, which the Klipsch Detroit lacks. The tradeoff: A peak around 8kHz, and bass does not reach as deep as the top-ranked speakers.
The Klipsch Detroit is the lighter choice. A rugged, fully waterproof stereo boombox with a long battery, fast USB-C charging, and power bank output. At 5.5 lbs (2.5 kg) it weighs much less than the Sony ULT Field 7 at 13.9 lbs (6.3 kg). The tradeoff: Weird boosted upper bass, bass not very deep.
Buy the Sony ULT Field 7 ($448) for a boombox speaker; the Klipsch Detroit ($235.11) suits a large speaker instead.
Want more options? Browse the full Portable Bluetooth rankings.
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Specifications Side By Side
| Sony ULT Field 7 | Klipsch Detroit | |
|---|---|---|
| Price | $448.00 | $235.11 |
| Ranked | #61 of 113 in Boombox Size Portable Bluetooth Speakers | #81 of 120 in Large Size Portable Bluetooth Speakers |
| Aux Input | Yes | Yes |
| Bass Extension (-10dB) | ~52Hz | ~55Hz |
| Battery Life | 30 hours (Manufacturer specified) | 20 hours (Manufacturer specified) |
| Guitar Input | Yes | - |
| IP Rating | IP67 | IP67 |
| Microphone Input | Yes (Karaoke mode with echo effect) | - |
| Party Mode | Yes (Party Connect up to 100 speakers) | Yes (Broadcast Mode) |
| Power Bank | Yes (USB-A, 5V/1.5A) | Yes (USB-C, 10W) |
| Power Input | AC Power cord | USB-C |
| Stereo | Yes | Yes |
| Omnidirectional | No | No |
| USB Playback | Yes | - |
| Weight | 13.9 lbs (6.3 kg) | 5.5 lbs (2.5 kg) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC, AAC, LDAC | SBC |
| App | No | Yes |
| EQ | Yes (App + ULT button) | No |
| TWS | Yes | Yes |
| Built-in Microphone | Yes | Yes |
| Bluetooth Version | 5.2 | 5.3 |
| Dimensions | 20.2” x 8.8” x 8.7” (512 x 224 x 222 mm) | 13.1” x 4.2” x 4.7” (334 x 107 x 119 mm) |
| Amplifier Power | 100W | 30W RMS |
| Drivers | 2x 114mm x 114mm X-Balanced woofers + 2x 46mm (1.9”) tweeters | 2x 76mm fullrange, 2x 25mm tweeters |
| Digital Aux Input | No | No |
| Strap | No | Yes (detachable strap) |
| Frequency Response | - | 55Hz - 20kHz (Manufacturer specified) |
| Maximum SPL | - | 93dB (Manufacturer specified) |
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