Short answer: the Treblab HD-Max, though neither ranks well in its class. It ranks #73 of 82 large speakers by sound quality, rated 2.4/5, at $129.97. The Zealot S67 ranks #81, rated 2.0/5, at $70.94, $59.03 cheaper, not enough of a saving to outweigh the sound-quality gap. Both are rated below 3.0/5 among the 82 large speakers, and the Tribit Stormbox Lava, ranked #3 at $100, is a better place to start if sound quality matters.
What the Treblab HD-Max does well: 50W incredibly loud for size with four monstrous drivers, tested 22.4-hour battery (25+ hours at 50% volume). The tradeoff: Boosted upper bass, not much lower bass.
What the Zealot S67 does well: It offers a lot of practical hardware for a 2.4kg budget speaker: IPX6 water resistance, USB-C charging, aux and microSD playback, speakerphone, a claimed 20-hour battery and TWS pairing for a second unit. The catch: Sound quality is the catch.
Buy the Treblab HD-Max. It is rated higher for sound quality, and the $59.03 saving on the Zealot S67 is not enough to make up the difference.
Looking for alternatives? See the complete Portable Bluetooth rankings.
Specifications Side By Side
| Treblab HD-Max | Zealot S67 | |
|---|---|---|
| Price | $129.97 | $70.94 |
| Ranked | #73 of 82 in Large Size Portable Bluetooth Speakers | #81 of 82 in Large Size Portable Bluetooth Speakers |
| Bass Extension (-10dB) | ~60Hz | - |
| Battery Life | 20 hours (Manufacturer specified) | 20 hours (Manufacturer specified) |
| IP Rating | IPX6 | IPX6 |
| Power Bank | Yes (USB-A, 5V) | No |
| Power Input | USB-C | USB-C |
| Weight | 5.1 lbs (2.3 kg) | 5.3 lbs (2.4 kg) |
| App | No | No |
| Aux Input | Yes | Yes |
| Bluetooth Codecs | SBC | SBC |
| Built-in Microphone | Yes | Yes |
| EQ | No | No |
| Party Mode | No | No |
| Stereo | Yes | Yes |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| Bluetooth Version | 5.3 | 5.2 |
| Drivers | 2x 75mm woofers, 2x 30mm tweeters | 60W: Dual drivers + passive radiator |
| Dimensions | 12.2” x 5.3” x 5.6” (310 x 135 x 143 mm) | 11.6” x 4.8” x 5.2” (294 x 122 x 132 mm) |
| Frequency Response | 30Hz - 16kHz (Manufacturer specified) | - |
| Amplifier Power | 60W | 60W |
| Digital Aux Input | No | No |
| MicroSD Playback | - | Yes |
Related Speaker Comparisons
How Treblab HD-Max compares with other leading options:
- JBL Xtreme 5 vs Treblab HD-Max
- Soundcore Boom 2 vs Treblab HD-Max
- Bose SoundLink Max vs Treblab HD-Max
- Soundcore Motion X600 vs Treblab HD-Max
- Soundcore Rave Neo 2 vs Treblab HD-Max
Prices on this page were last checked September 26, 2026 at 11:14 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
Treblab HD-Max: $129.97 Amazon eBay
Pros: 50W incredibly loud for size with four monstrous drivers, tested 22.4-hour battery (25+ hours at 50% volume). IPX6 water-resistant for elements exposure. Power bank feature with 10W USB-A output for device charging. Three sound modes with unique EQ properties. Excellent construction, well-made components. Measured bass extension of ~60Hz (-10dB).
Cons: Boosted upper bass, not much lower bass. Only IPX6 water rating
Full Treblab HD-Max review and specifications →
| Amplifier Power | 60W |
|---|---|
| App | No |
| Aux Input | Yes |
| Bass Extension (-10dB) | ~60Hz |
| Battery Life | 20 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.3 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 12.2” x 5.3” x 5.6” (310 x 135 x 143 mm) |
| Drivers | 2x 75mm woofers, 2x 30mm tweeters |
| EQ | No |
| Frequency Response | 30Hz - 16kHz (Manufacturer specified) |
| IP Rating | IPX6 |
| Omnidirectional | No |
| Party Mode | No |
| Power Bank | Yes (USB-A, 5V) |
| Power Input | USB-C |
| Stereo | Yes |
| TWS | Yes |
| Weight | 5.1 lbs (2.3 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
Zealot S67: $70.94 AliExpress eBay
Pros: It offers a lot of practical hardware for a 2.4kg budget speaker: IPX6 water resistance, USB-C charging, aux and microSD playback, speakerphone, a claimed 20-hour battery and TWS pairing for a second unit. The large enclosure and dual-driver/passive-radiator layout can provide useful party-level volume.
Cons: Sound quality is the catch. Independent reviewer comparisons report obvious distortion once volume rises past roughly halfway, little true deep bass, and a rolled-off, low-detail treble. There is no app or real EQ to correct that balance, so its long feature list does not make it a good pick for attentive music listening.
Full Zealot S67 review and specifications →
| Amplifier Power | 60W |
|---|---|
| App | No |
| Aux Input | Yes |
| Battery Life | 20 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.2 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 11.6” x 4.8” x 5.2” (294 x 122 x 132 mm) |
| Drivers | 60W: Dual drivers + passive radiator |
| EQ | No |
| IP Rating | IPX6 |
| MicroSD Playback | Yes |
| Omnidirectional | No |
| Party Mode | No |
| Power Bank | No |
| Power Input | USB-C |
| Stereo | Yes |
| TWS | Yes |
| Weight | 5.3 lbs (2.4 kg) |
- Links
- Reviews, Comparisons and Sound Samples
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