Short answer: the Brane X for the deepest bass, the Zealot S97 for the price. The Brane X has the absolute deepest bass in this category, at the cost of boosted upper bass around 120Hz and rolled-off treble. The S97 is the budget pick, since the notes say there is nothing else at its price with that deep bass and reasonable tuning, but it does not get very loud.
Buy the Brane X if sound quality matters more than the price. Buy the Zealot S97 if the price matters more than sound quality.
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
| Brane X | Zealot S97 | |
|---|---|---|
| Price | $549.00 | $79.98 |
| Ranked | #4 of 120 in Large Size Portable Bluetooth Speakers | #66 of 120 in Large Size Portable Bluetooth Speakers |
| Aux Input | Yes | Yes |
| Aux Latency | 295ms default, 33ms with aux pass-through | - |
| Bass Extension (-10dB) | 31Hz | - |
| Battery Life | 12 hours (Manufacturer specified) | 12 hours (Manufacturer specified) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | aptX HD, aptX, AAC, SBC | SBC |
| IP Rating | IP57 | IPX6 |
| Bluetooth Latency | 100ms | - |
| Maximum SPL | 106dB (measured by Alan Ross Reviews) | - |
| Party Mode | Yes (Brane app, up to 8 speakers) | Yes (PartyAdd up to 100 speakers) |
| Power Input | AC Power brick | USB-C |
| Stereo | Yes | Yes |
| Omnidirectional | No | No |
| TWS | Yes | No |
| Weight | 7.7 lbs (3.5 kg) | 7.3 lbs (3.3 kg) |
| Wi-Fi | Yes | - |
| App | Yes (Brane app) | No |
| Built-in Microphone | Yes | Yes |
| Voice Assistants | Amazon Alexa | - |
| EQ | Yes (5 band) | 3 EQ presets |
| Power Bank | No | Yes (USB-A + USB-C) |
| Dimensions | 9.3” x 7” x 6.1” (236 x 178 x 155 mm) | 12.6” x 7.3” x 5.9” (321 x 185 x 151 mm) |
| Drivers | 2x 2.5” midrange, 2x 0.75” tweeters + 6.5”x9” subwoofer | 2x 76mm (3”) woofers + 2x 38mm tweeters + 2x passive radiators |
| Frequency Response | 30Hz - 20kHz (Manufacturer specified) | - |
| Amplifier Power | 200W | 80W |
| Digital Aux Input | No | No |
| Bluetooth Version | 5.1 | 5.2 |
| Strap | No | - |
| MicroSD Playback | - | Yes |
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