Short answer: the Harman Kardon Onyx Studio 9. It ranks #13 of 73 boombox speakers by sound quality at $186.99; the Sony SRS-XG500 ranks #45 and costs $349, which makes this an easy call rather than a real tradeoff.
What the Harman Kardon Onyx Studio 9 offers: Auracast multi-speaker connection alongside classic stereo pairing. Harman Kardon One app with EQ. USB-C charging, up from the previous generation’s AC power brick. Watch for: Slight recessed mids, boost in the upper mids, rolled off upper treble. Not as deep bass as previous Onyx Studio speakers.
What the Sony SRS-XG500 offers: 30 hour battery life; 10-min quick-charge gives 3 hours. Battery care function stops charging at 90% to extend longevity. IP66 water/dust resistant. Two USB-A ports (one charges devices), mic/guitar inputs, AUX. Party mode links 100+ speakers. Watch for: Thuddy upper bass, not as deep bass as others. Speaker will not remain at max volume and will turn itself down automatically.
Buy the Harman Kardon Onyx Studio 9. It ranks higher for sound quality than the Sony SRS-XG500 and costs less, which settles it without a real tradeoff to make.
There is a real battery-life gap here: the Sony SRS-XG500 is rated for 30 hours, the Harman Kardon Onyx Studio 9 only 8 hours.
If water resistance matters to you, the Sony SRS-XG500 at IP66 (powerful water jets) holds up far better than the Harman Kardon Onyx Studio 9 at no water resistance.
Specifications Side By Side
| Harman Kardon Onyx Studio 9 | Sony SRS-XG500 | |
|---|---|---|
| Price | $186.99 | $349.00 |
| Ranked | #13 of 73 in Boombox Size Portable Bluetooth Speakers | #45 of 73 in Boombox Size Portable Bluetooth Speakers |
| Bass Extension (-10dB) | 41Hz | 49Hz |
| Max Volume | 101dB | - |
| IP Rating | None | IP66 |
| Power Input | AC Power Cable (2-Prong) | USB-C |
| Stereo | Yes | Yes |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| Weight | 9.3 lbs / 4.2 kg | 12.3 lbs / 5.6 kg |
| App | Yes (Harman Kardon One app) | Yes (Music Center, Fiestable) |
| Bluetooth Codecs | SBC | SBC, AAC, LDAC |
| EQ | Yes (App EQ) | Yes (App + ClearAudio+) |
| Party Mode | Yes (Auracast) | Yes (Party Connect up to 100 speakers) |
| USB Playback | No | Yes |
| Bluetooth Version | 5.3 | 5.0 |
| Battery Life | 8 hours (Manufacturer specified) | 30 hours (Manufacturer specified) |
| Output Power | 50W RMS | 2x 25W + 2x 10W |
| Dimensions | 11.4" x 11.3" x 5.1" (289.2 x 287.5 x 130 mm) | 18.1" x 10.1" x 8.5" (460 x 256 x 215 mm) |
| Drivers | 120mm woofer + 3x 20mm tweeters | 2x 30mm tweeters + 2x 40mm mid-range + 1x 60mm woofer |
| Digital Aux Input | No | No |
| Aux Input | - | Yes |
| Power Bank | - | Yes (USB-A, 5V/1.5A) |
| Built in Microphone | - | Yes |
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Prices on this page were last checked August 27, 2026 at 10:09 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
Harman Kardon Onyx Studio 9: $186.99 Amazon eBay
Pros: Auracast multi-speaker connection alongside classic stereo pairing. Harman Kardon One app with EQ. USB-C charging, up from the previous generation’s AC power brick.
Cons: Slight recessed mids, boost in the upper mids, rolled off upper treble. Not as deep bass as previous Onyx Studio speakers.
Full Harman Kardon Onyx Studio 9 review and specifications →
| App | Yes (Harman Kardon One app) |
|---|---|
| Bass Extension (-10dB) | 41Hz |
| Battery Life | 8 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.3 |
| Digital Aux Input | No |
| Dimensions | 11.4" x 11.3" x 5.1" (289.2 x 287.5 x 130 mm) |
| Drivers | 120mm woofer + 3x 20mm tweeters |
| EQ | Yes (App EQ) |
| IP Rating | None |
| Max Volume | 101dB |
| Omnidirectional | No |
| Output Power | 50W RMS |
| Party Mode | Yes (Auracast) |
| Power Input | AC Power Cable (2-Prong) |
| Stereo | Yes |
| TWS | Yes |
| USB Playback | No |
| Weight | 9.3 lbs / 4.2 kg |
- Links
- Reviews, Comparisons and Sound Samples
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Sony SRS-XG500: $349.00 Amazon eBay
Pros: 30 hour battery life; 10-min quick-charge gives 3 hours. Battery care function stops charging at 90% to extend longevity. IP66 water/dust resistant. Two USB-A ports (one charges devices), mic/guitar inputs, AUX. Party mode links 100+ speakers.
Cons: Thuddy upper bass, not as deep bass as others. Speaker will not remain at max volume and will turn itself down automatically.
Full Sony SRS-XG500 review and specifications →
| App | Yes (Music Center, Fiestable) |
|---|---|
| Aux Input | Yes |
| Bass Extension (-10dB) | 49Hz |
| Battery Life | 30 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC, AAC, LDAC |
| Bluetooth Version | 5.0 |
| Built in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 18.1" x 10.1" x 8.5" (460 x 256 x 215 mm) |
| Drivers | 2x 30mm tweeters + 2x 40mm mid-range + 1x 60mm woofer |
| EQ | Yes (App + ClearAudio+) |
| IP Rating | IP66 |
| Omnidirectional | No |
| Output Power | 2x 25W + 2x 10W |
| Party Mode | Yes (Party Connect up to 100 speakers) |
| Power Bank | Yes (USB-A, 5V/1.5A) |
| Power Input | USB-C |
| Stereo | Yes |
| TWS | Yes |
| USB Playback | Yes |
| Weight | 12.3 lbs / 5.6 kg |
- Links
- Reviews, Comparisons and Sound Samples
- Jay’s Straight Up Reviews & More: Tribit Stormbox Blast 🆚 Sony SRS-XG500 - Tailgater Special - Battery Powered ☢️ Bass Boost Enabled. More from JaysStraightUpReviews →
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- Reddit Search for Sony SRS-XG500 Review
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