These are not really the same size class, and that is the honest framing here. The JBL Partybox 130 ranks #7 of 53 party speakers by sound quality at $449.95; the Yeahbox Sonic Boom Ultra ranks #11 of 113 boombox speakers by sound quality at $388.

Different sizes. The PartyBox 130 is an 24.9 lbs (11.3 kg) party speaker with a foldable handle. The Sonic Boom Ultra is an 24.3 lbs (11 kg) boombox. Each is rated within its own class, and they weigh almost the same.
The PartyBox 130 is balanced and powerful for its format, with a removable battery, a claimed 15 hours, mic and guitar inputs, USB audio, Auracast and a light show. It is bass forward and less clear than the PartyBox 120 in direct comparisons.
The Sonic Boom Ultra was the loudest boombox in comparison tests, reaches audible bass near 30Hz on its Country preset, and has HDMI ARC for TV use and a claimed 24 hours. It gets noisy above about 80 to 90% volume and has no Auracast or removable battery.
Weather: IPX6 on the Yeahbox against IPX4 on the PartyBox 130.
Buy the JBL Partybox 130 at $449.95 for a party speaker, or the Yeahbox Sonic Boom Ultra at $388 for a boombox speaker instead.
Looking for alternatives? See the complete Portable Bluetooth rankings.
Prices on this page were last checked November 7, 2026 at 7:34 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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Specifications Side By Side
| JBL Partybox 130 | Yeahbox Sonic Boom Ultra | |
|---|---|---|
| Price | $449.95 | $388.00 |
| Ranked | #7 of 53 in Party Size Portable Bluetooth Speakers | #11 of 113 in Boombox Size Portable Bluetooth Speakers |
| App | Yes | Yes |
| Aux Input | Yes | Yes |
| Battery Life | 15 hours (Manufacturer specified) | 24 hours (Manufacturer specified) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | SBC (inferred; additional codecs unverified) |
| Bluetooth Version | 6.0 | 6.0 |
| Charging Time | 3 hours | - |
| Drivers | 2x 5.2” woofers, 2x 1” tweeters | 6x9in racetrack woofer (200W) + 2x 4.5in midrange (40W each) + 2x tweeters (20W each), true 3-way |
| EQ | Yes (7 band) | Yes (Country, Classic, and custom app EQ; custom settings don’t persist after the app closes) |
| Frequency Response | 40Hz - 20kHz (Manufacturer specified) | - |
| Guitar Input | Yes | - |
| IP Rating | IPX4 | IPX6 |
| Microphone Input | Yes (Karaoke mode with echo effect) | - |
| Party Mode | Yes (Auracast) | No (TWS stereo pairing of 2 units only, no Auracast) |
| Power Bank | Yes (USB-C) | - |
| Power Input | AC Power cord | USB-C (60W fast charging) |
| Removable Battery | Yes | - |
| Stereo | Partially | Yes |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| USB Playback | Yes | Yes |
| Weight | 24.9 lbs (11.3 kg) | 24.3 lbs (11 kg) |
| Amplifier Power | 200W | 320W RMS / 500W Peak |
| Digital Aux Input | No | No |
| Lights | Yes | Yes |
| Dimensions | 22.6”H x 11.7”W x 11.9”D (575 x 298.4 x 303 mm) | 23.4” x 9.8” x 12.3” (595 x 248 x 313 mm) |
| Strap | No | No |
| Battery Capacity | - | 45000mAh (Reviewer estimated) |
| Inputs | - | HDMI ARC (in/out, usable as a TV soundbar), AUX in/out, USB drive, microSD, optional wired mic |
| MicroSD Playback | - | Yes |
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