Short answer: the W-King D20. It ranks #41 of 112 boombox speakers by sound quality, rated 3.6/5, at $193; the Turtlebox Grande ranks #80, rated 2.6/5, and costs $730, so there is little reason to consider the other one.
What the Turtlebox Grande does well: A rugged, submersible, crush-proof speaker with a 10 inch woofer and a battery that lasts for days. It links with other speakers (Turtlebox Party Mode), which the W-King D20 cannot. The catch: In YouTube sound samples it sounds only okay, and bass is shallow for a 10 inch woofer, only down 10dB at about 55Hz.
The W-King D20 is the better-sounding, deeper-bass choice. A loud stereo party speaker with two wireless microphones, a 24 hour battery and water resistance. Its bass reaches about 42Hz before falling 10dB, against 55Hz for the Turtlebox Grande. At 14.3 lbs (6.5 kg) it weighs noticeably less than the Turtlebox Grande at 18.8 lbs (8.53 kg). It has an adjustable EQ, which the Turtlebox Grande lacks. The tradeoff: Rising frequency response but upper treble rolled off, 700Hz and 1.2kHz peaks.
Buy the W-King D20. It is rated higher for sound quality than the Turtlebox Grande and costs less, so only choose the other one for a particular feature it does better.
Want more options? Browse the full Portable Bluetooth rankings.
A rugged, submersible, crush-proof speaker with a 10 inch woofer and a battery that lasts for days.
A loud stereo party speaker with two wireless microphones, a 24 hour battery and water resistance.
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Specifications Side By Side
| Turtlebox Grande | W-King D20 | |
|---|---|---|
| Price | $730.00 | $193 |
| Ranked | #80 of 112 in Boombox Size Portable Bluetooth Speakers | #41 of 112 in Boombox Size Portable Bluetooth Speakers |
| Aux Input | Yes | Yes |
| Bass Extension (-10dB) | ~55Hz | ~42Hz |
| Battery Life | 25 hours (Manufacturer specified) | 24 hours (Manufacturer specified) |
| Built-in Microphone | Yes | No |
| IP Rating | IP67 | IPX6 |
| MicroSD Playback | Yes | Yes |
| Party Mode | Yes (Turtlebox Party Mode) | No |
| Power Input | DC Barrel Connector (20V/3A) | USB-C |
| Stereo | Yes | Yes |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| Weight | 18.8 lbs (8.53 kg) | 14.3 lbs (6500 g) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | SBC |
| App | No | Yes (W-King app) |
| EQ | No | Yes (App + button modes) |
| Power Bank | Yes (USB-C) | Yes |
| USB Playback | No | Yes |
| Bluetooth Version | 5.4 | 5.3 |
| Amplifier Power | 86W | 200W |
| Dimensions | 14” x 8.4” x 11.5” (355.6 x 213.4 x 292.1 mm) | 19.9” x 8.5” x 10.6” (506 x 217 x 270 mm) |
| Drivers | 1x 10” (254mm) woofer + 1x 1.25” (32mm) titanium tweeter | 4.5” + 3.5” drivers + 1.2” tweeters |
| Digital Aux Input | No | No |
| Strap | No | - |
| Maximum SPL | - | 112dB (measured by Alan Ross Reviews) |
| Wireless Microphones | - | Yes |
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