These are not really the same size class, and that is the honest framing here. The Sony ULT Field 7 ranks #43 of 76 boombox speakers by sound quality at $400; the Klipsch Detroit ranks #57 of 82 large speakers by sound quality at $235.99.
The case for the Sony ULT Field 7: Sony ULT Field 7 uses 2x 114mm x 114mm X-Balanced woofers + 2x 46mm (1.9”) tweeters. The catch: Bass is limited by its ~52Hz specification.
The case for the Klipsch Detroit: Dual 1” tweeters + 3” woofers deliver excellent sound detail and robust bass. The catch: Weird boosted upper bass, bass not very deep.
Buy the Sony ULT Field 7 ($400) for a boombox speaker; the Klipsch Detroit ($235.99) suits a large speaker instead.
Battery life favors the Sony ULT Field 7: rated for 30 hours against 20 hours for the Klipsch Detroit.
Want more options? Browse the full Portable Bluetooth rankings.
Specifications Side By Side
| Sony ULT Field 7 | Klipsch Detroit | |
|---|---|---|
| Price | $400 | $235.99 |
| Ranked | #43 of 76 in Boombox Size Portable Bluetooth Speakers | #57 of 82 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 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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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 Field 7: $400 Amazon eBay
Older model: the Sony SRS-XG500 (rated 3/5).
Pros: Sony ULT Field 7 uses 2x 114mm x 114mm X-Balanced woofers + 2x 46mm (1.9”) tweeters. Its 6.3 kg, claimed 30 hours (Manufacturer specified) battery life, IP67 protection, aux input and stereo playback make it a practical option for its intended room or portable use. Measured bass extension of ~52Hz (-10dB).
Cons: Bass is limited by its ~52Hz specification. There is no companion app. A peak around 8kHz, and bass does not reach as deep as the top-ranked speakers.
Full Sony ULT Field 7 review and specifications →
| Amplifier Power | 100W |
|---|---|
| App | No |
| Aux Input | Yes |
| Bass Extension (-10dB) | ~52Hz |
| Battery Life | 30 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC, AAC, LDAC |
| Bluetooth Version | 5.2 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 20.2” x 8.8” x 8.7” (512 x 224 x 222 mm) |
| Drivers | 2x 114mm x 114mm X-Balanced woofers + 2x 46mm (1.9”) tweeters |
| EQ | Yes (App + ULT button) |
| Guitar Input | Yes |
| IP Rating | IP67 |
| Microphone Input | Yes (Karaoke mode with echo effect) |
| Omnidirectional | No |
| Party Mode | Yes (Party Connect up to 100 speakers) |
| Power Bank | Yes (USB-A, 5V/1.5A) |
| Power Input | AC Power cord |
| Stereo | Yes |
| Strap | No |
| TWS | Yes |
| USB Playback | Yes |
| Weight | 13.9 lbs (6.3 kg) |
- Links
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Klipsch Detroit: $235.99 Amazon eBay
Pros: Dual 1” tweeters + 3” woofers deliver excellent sound detail and robust bass. IP67 dust/waterproof rating submersible 1m for 30 min. 20-hour battery life at moderate volume (12-15 hours at high volume). USB-C fast-charge in 2 hours with two-way power for device charging. Measured bass extension of ~55Hz (-10dB).
Cons: Weird boosted upper bass, bass not very deep. Boosted lower treble, somewhat harsh sounding like most other Klipsch speakers. Not very loud.
Full Klipsch Detroit review and specifications →
| Amplifier Power | 30W RMS |
|---|---|
| App | Yes |
| Aux Input | Yes |
| Bass Extension (-10dB) | ~55Hz |
| Battery Life | 20 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.3 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 13.1” x 4.2” x 4.7” (334 x 107 x 119 mm) |
| Drivers | 2x 76mm fullrange, 2x 25mm tweeters |
| EQ | No |
| Frequency Response | 55Hz - 20kHz (Manufacturer specified) |
| IP Rating | IP67 |
| Maximum SPL | 93dB (Manufacturer specified) |
| Omnidirectional | No |
| Party Mode | Yes (Broadcast Mode) |
| Power Bank | Yes (USB-C, 10W) |
| Power Input | USB-C |
| Stereo | Yes |
| Strap | Yes (detachable strap) |
| TWS | Yes |
| Weight | 5.5 lbs (2.5 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Walts TV: The Austin NEW Klipsch Bluetooth Speaker Review + Sound Test More from Williston Audio Labs →
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