Short answer: the JBL Partybox Encore Essential. It ranks #8 of 113 boombox speakers by sound quality, rated 4.2/5, at $299.95. The Onn Pro X Large Boom Boombox ranks #49, rated 3.4/5, at $199, $100.95 cheaper, not enough of a saving to outweigh the sound-quality gap.
The JBL Partybox Encore Essential is the better-sounding, lighter option. A compact stereo party speaker with great sound, strong output, and splash resistance for backyard parties. At 13 lbs (5.9 kg) it weighs noticeably less than the Onn Pro X Large Boom Boombox at 17.2 lbs (7.8 kg).
The Onn Pro X Large Boom Boombox is the longer-running, tougher choice. A powerful, waterproof party boombox with a 20 hour battery and light modes at a low price. It is rated for 20 hours of battery against 6 for the JBL Partybox Encore Essential. It is rated IP67 against IPX4 for the JBL Partybox Encore Essential. The catch: Bass not as deep as higher ranked speakers like the JBL Boombox 3, JBL Boombox 4, or Tribit Stormbox Blast.
Buy the JBL Partybox Encore Essential. It is rated higher for sound quality, and the $100.95 saving on the Onn Pro X Large Boom Boombox is not enough to make up the difference.
Still deciding? The full Portable Bluetooth rankings cover every ranked option.
Prices on this page were last checked November 14, 2026 at 6:17 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 Encore Essential | Onn Pro X Large Boom Boombox | |
|---|---|---|
| Price | $299.95 | $199.00 |
| Ranked | #8 of 113 in Boombox Size Portable Bluetooth Speakers | #49 of 113 in Boombox Size Portable Bluetooth Speakers |
| App | Yes (JBL PartyBox app) | - |
| Aux Input | Yes | Yes |
| Aux Latency | 17ms | - |
| Bass Extension (-10dB) | 38Hz | - |
| Battery Life | 6 hours (Manufacturer specified) | 20 hours (Manufacturer specified) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | SBC (inferred; additional codecs unverified) |
| Built-in Microphone | No | - |
| EQ | Yes (3 band App EQ) | Yes (Bass Boost) |
| IP Rating | IPX4 | IP67 |
| Bluetooth Latency | 100ms | - |
| Party Mode | Yes (PartyBoost up to 100 speakers) | Yes (Auracast) |
| Power Bank | Yes (USB-A, 5V/0.5A) | Yes (USB-A, 5V/2A) |
| Power Input | AC Power cord | AC Power cord |
| Stereo | Yes | - |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| USB Playback | Yes | - |
| Weight | 13 lbs (5.9 kg) | 17.2 lbs (7.8 kg) |
| Bluetooth Version | 5.1 | 5.4 (Manufacturer specified) |
| Amplifier Power | 100W RMS | 180W RMS (540W peak) |
| Dimensions | 10.9” x 12.9” x 11.5” (276 x 327 x 293 mm) | 20.1” x 10.3” x 9” (510 x 261 x 228 mm) |
| Drivers | 135mm woofer + 2x 44mm tweeters | 5 speakers |
| Maximum SPL | 110dB (measured by Alan Ross Reviews) | - |
| Digital Aux Input | No | No |
| Strap | No | - |
| Removable Battery | - | No |
| Frequency Response | - | 50Hz - 20kHz (Manufacturer specified) |
| Lights | - | Yes |
Where the Ratings Come From
- JBL Partybox Encore Essential: reviews by Alan Ross, DLX Willington and Jay’s Straight Up Reviews & More.
- Onn Pro X Large Boom Boombox: reviews by Josh’s Gadgets and More.
This comparison is generated from the ratings, specifications and measurements on each product’s own page, and it updates when that data changes. How we rank explains how each rating is decided.
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