Short answer: the Onn Pro X Large Boom Boombox. It ranks #49 of 113 boombox speakers by sound quality, rated 3.4/5, at $199; the Turtlebox Grande ranks #81, rated 2.6/5, and costs $730, so there is not much of a tradeoff to weigh.
The Onn Pro X Large Boom Boombox is the better-sounding pick. A powerful, waterproof party boombox with a 20 hour battery and light modes at a low price. It has an adjustable EQ, which the Turtlebox Grande lacks. The catch: Bass not as deep as higher ranked speakers like the JBL Boombox 3, JBL Boombox 4, or Tribit Stormbox Blast.
Why pick the Turtlebox Grande: A rugged, submersible, crush-proof speaker with a 10 inch woofer and a battery that lasts for days. The tradeoff: In YouTube sound samples it sounds only okay, and bass is shallow for a 10 inch woofer, only down 10dB at about 55Hz.
Buy the Onn Pro X Large Boom Boombox. It is rated higher for sound quality than the Turtlebox Grande and costs less, so it is the default pick unless a specific strength of the other one matters more to you.
Want more options? Browse the full Portable Bluetooth rankings.
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
| Onn Pro X Large Boom Boombox | Turtlebox Grande | |
|---|---|---|
| Price | $199.00 | $730.00 |
| Ranked | #49 of 113 in Boombox Size Portable Bluetooth Speakers | #81 of 113 in Boombox Size Portable Bluetooth Speakers |
| Battery Life | 20 hours (Manufacturer specified) | 25 hours (Manufacturer specified) |
| IP Rating | IP67 | IP67 |
| Amplifier Power | 180W RMS (540W peak) | 86W |
| Weight | 17.2 lbs (7.8 kg) | 18.8 lbs (8.53 kg) |
| Dimensions | 20.1” x 10.3” x 9” (510 x 261 x 228 mm) | 14” x 8.4” x 11.5” (355.6 x 213.4 x 292.1 mm) |
| Drivers | 5 speakers | 1x 10” (254mm) woofer + 1x 1.25” (32mm) titanium tweeter |
| Power Input | AC Power cord | DC Barrel Connector (20V/3A) |
| Removable Battery | No | - |
| Party Mode | Yes (Auracast) | Yes (Turtlebox Party Mode) |
| Aux Input | Yes | Yes |
| Power Bank | Yes (USB-A, 5V/2A) | Yes (USB-C) |
| TWS | Yes | Yes |
| Bluetooth | Yes | Yes |
| Bluetooth Version | 5.4 (Manufacturer specified) | 5.4 |
| Frequency Response | 50Hz - 20kHz (Manufacturer specified) | - |
| Omnidirectional | No | No |
| Bluetooth Codecs | SBC (inferred; additional codecs unverified) | SBC |
| Lights | Yes | - |
| Digital Aux Input | No | No |
| EQ | Yes (Bass Boost) | No |
| Bass Extension (-10dB) | - | ~55Hz |
| Built-in Microphone | - | Yes |
| MicroSD Playback | - | Yes |
| Stereo | - | Yes |
| App | - | No |
| USB Playback | - | No |
| Strap | - | No |
Where the Ratings Come From
- Onn Pro X Large Boom Boombox: reviews by Josh’s Gadgets and More.
- Turtlebox Grande: reviews by Everyday Man, Cast South and R J.
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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