Short answer: the Brane X for deep bass, the Minirig mk3 for balance. The Brane X reaches the absolute deepest bass in this category, but boosted upper bass around 120Hz and rolled-off treble cost it detail up top. The Minirig mk3 with subwoofer is the more balanced of the two, though it is not stereo and its app is buggy.
What the Brane X gets right: Very deep bass, the absolute deepest from this category. The catch: Boosted upper bass ~120Hz, rolled off treble, so it’s missing detail up top.
On the Minirig mk3 with subwoofer side: Very balanced sound. Set against that: Not stereo, app is buggy.
Buy the Brane X when sound quality outweighs the price for you, and the Minirig 3 with subwoofer when the price outweighs sound quality instead.
There is a real battery-life gap here: the Minirig 3 with subwoofer is rated for 30 hours, the Brane X only 12 hours.
Water resistance is not close: the Brane X is rated at IP57 (brief submersion), well ahead of the Minirig 3 with subwoofer at Splash resistant (splashing).
Looking for alternatives? See the complete Portable Bluetooth rankings.
Specifications Side By Side
| Brane X | Minirig 3 with subwoofer | |
|---|---|---|
| Price | $500 | $260 |
| Ranked | #4 of 78 in Large Size Portable Bluetooth Speakers | #6 of 78 in Large Size Portable Bluetooth Speakers |
| Aux Input | Yes | Yes |
| Aux Latency | 295ms default, 33ms with aux pass-through | 1ms |
| Bass Extension (-10dB) | 31Hz | 47Hz |
| Battery Life | 12 hours (Manufacturer specified) | 30 hours (Manufacturer specified) |
| Bluetooth Codecs | aptX HD, aptX, AAC, SBC | SBC |
| IP Rating | IP57 | Splash resistant |
| Bluetooth Latency | 100ms | 60ms |
| Maximum SPL | 106dB (measured by Alan Ross Reviews) | 103dB (measured by Alan Ross Reviews) |
| Party Mode | Yes (Brane app, up to 8 speakers) | No |
| Power Input | AC Power brick | Proprietary USB cable |
| Stereo | Yes | No |
| Omnidirectional | No | Pointing up |
| TWS | Yes | Yes (Bluetooth or cable) |
| Weight | 7.7 lbs (3.5 kg) | 3.1 lbs (1.42 kg) |
| Wi-Fi | Yes | - |
| App | No | Yes |
| Built-in Microphone | Yes | Yes |
| Voice Assistants | Amazon Alexa | - |
| EQ | No | Yes |
| Power Bank | No | No |
| Dimensions | 9.3" x 7" x 6.1" (236 x 178 x 155 mm) | 4" x 2.9" (101.6 x 73 mm) (diameter x height) |
| Drivers | 2x 2.5" midrange, 2x 0.75" tweeters + 6.5"x9" subwoofer | 70mm custom driver |
| Frequency Response | 30Hz - 20kHz (Manufacturer specified) | 60Hz - 18kHz (Manufacturer specified) |
| Amplifier Power | 200W | 40W |
| Digital Aux Input | No | No |
| Bluetooth Version | 5.1 | 5.0 |
Related Speaker Comparisons
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Prices on this page were last checked September 22, 2026 at 5:11 AM 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
Brane X: $500 Amazon eBay
Pros: The Brane X pairs a dedicated RAD subwoofer with two midrange drivers and two tweeters to achieve extraordinary low bass for a 3.5kg portable: its measured -10dB extension is 31Hz. Independent testing finds it loud, with well-balanced mids, a smooth treble balance and useful bass-level controls; Wi-Fi, AirPlay, Alexa, quality Bluetooth codecs and low-latency aux pass-through make it unusually versatile. Measured bass extension of 31Hz (-10dB).
Cons: The front-facing design has only moderate dispersion, so sound changes noticeably off to the sides or behind it. Bass response shifts at maximum volume, the default aux mode has very high latency, and some listeners find the upper register edgy or need EQ to achieve their preferred balance. Its claimed 12-hour runtime and premium cost make it more of a compact high-end system than a carefree all-day speaker.
Full Brane X review and specifications →
| Amplifier Power | 200W |
|---|---|
| App | No |
| Aux Input | Yes |
| Aux Latency | 295ms default, 33ms with aux pass-through |
| Bass Extension (-10dB) | 31Hz |
| Battery Life | 12 hours (Manufacturer specified) |
| Bluetooth Codecs | aptX HD, aptX, AAC, SBC |
| Bluetooth Latency | 100ms |
| Bluetooth Version | 5.1 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 9.3" x 7" x 6.1" (236 x 178 x 155 mm) |
| Drivers | 2x 2.5" midrange, 2x 0.75" tweeters + 6.5"x9" subwoofer |
| EQ | No |
| Frequency Response | 30Hz - 20kHz (Manufacturer specified) |
| IP Rating | IP57 |
| Maximum SPL | 106dB (measured by Alan Ross Reviews) |
| Omnidirectional | No |
| Party Mode | Yes (Brane app, up to 8 speakers) |
| Power Bank | No |
| Power Input | AC Power brick |
| Stereo | Yes |
| TWS | Yes |
| Voice Assistants | Amazon Alexa |
| Weight | 7.7 lbs (3.5 kg) |
| Wi-Fi | Yes |
- Links
- Reviews, Comparisons and Sound Samples
- Alan Ross Reviews: This speaker left me shocked! Brane X, they said it defies the laws of physics! More from alanrossreviews →
- Alan Ross Reviews: Brane X vs JBL Xtreme 5: Maximum Bass, No Mercy
- Alan Ross Reviews: JBL Boombox 4 HUMILIATES Brane X?! Ultimate Bass Battle!
- Alan Ross Reviews: Minirig 2.1 or the Brane X or the Harman Kardon Go Play 3?
- mark: Brane X Speaker Review 2
- mark: Brane X Speaker Review
- Head-to-Head Comparisons
Minirig 3 with subwoofer: $260 Minirigs eBay
Pros: Very balanced sound. Measured bass extension of 47Hz (-10dB).
Cons: Not stereo, app is buggy. Wireless TWS pairing is buggy. Not easy to carry on the go, no handle and there’s 2 pieces. Calls itself splash resistant but has no official water rating. A bit expensive. Has reliability issues more often than any other speaker
Full Minirig 3 with subwoofer review and specifications →
| Amplifier Power | 40W |
|---|---|
| App | Yes |
| Aux Input | Yes |
| Aux Latency | 1ms |
| Bass Extension (-10dB) | 47Hz |
| Battery Life | 30 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC |
| Bluetooth Latency | 60ms |
| Bluetooth Version | 5.0 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 4" x 2.9" (101.6 x 73 mm) (diameter x height) |
| Drivers | 70mm custom driver |
| EQ | Yes |
| Frequency Response | 60Hz - 18kHz (Manufacturer specified) |
| IP Rating | Splash resistant |
| Maximum SPL | 103dB (measured by Alan Ross Reviews) |
| Omnidirectional | Pointing up |
| Party Mode | No |
| Power Bank | No |
| Power Input | Proprietary USB cable |
| Stereo | No |
| TWS | Yes (Bluetooth or cable) |
| Weight | 3.1 lbs (1.42 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Alan Ross Reviews: Tribit Stormbox Blast or two Motion Boom Pluses for best cheap boombox? More from alanrossreviews →
- Alan Ross Reviews: Minirig mk3 sub vs mk2 subwoofer - full sound test, 1.1, 2.1, 2.2
- Alan Ross Reviews: Soundcore Motion Boom vs JBL Xtreme 3 LG PN7 & Minirig mk3 💯👍
- Alan Ross Reviews: Minirig mk3 2.2 (2x subwoofers) vs 2x Soundcore Motion Booms 🤑
- Alan Ross Reviews: Minirig 4 vs Minirig 3, stuff they tell you, stuff they don’t! 😂
- Head-to-Head Comparisons
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