These are not really the same size class, and that is the honest framing here. The Brane X ranks #4 of 78 large speakers by sound quality at $500; the JBL Authentics 500 ranks #3 of 5 powered desktop speakers by sound quality at $600.
The case for the Brane X: 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. The tradeoff: The front-facing design has only moderate dispersion, so sound changes noticeably off to the sides or behind it.
The case for the JBL Authentics 500: JBL Authentics 500 uses 6.5” (down-firing subwoofer), 3x 2.75” midranges, 3x 1” (25mm aluminum dome) tweeters. The tradeoff: Its 40Hz - 20kHz (-6dB) (Manufacturer specified) specification points to limited deep-bass reach for the cabinet size.
Buy the Brane X ($500) for a large speaker; the JBL Authentics 500 ($600) suits a powered desktop speaker instead.
Water resistance is not close: the Brane X is rated at IP57 (brief submersion), well ahead of the JBL Authentics 500 at no water resistance.
Want more options? Browse the full Portable Bluetooth rankings and Powered Home rankings.
Specifications Side By Side
| Brane X | JBL Authentics 500 | |
|---|---|---|
| Price | $500 | $600 each |
| Ranked | #4 of 78 in Large Size Portable Bluetooth Speakers | #3 of 5 in Large Size Powered Desktop Speakers |
| Aux Input | Yes | Yes |
| Aux Latency | 295ms default, 33ms with aux pass-through | - |
| Bass Extension (-10dB) | 31Hz | - |
| Battery Life | 12 hours (Manufacturer specified) | No Battery |
| Bluetooth Codecs | aptX HD, aptX, AAC, SBC | SBC |
| IP Rating | IP57 | None |
| Bluetooth Latency | 100ms | - |
| Maximum SPL | 106dB (measured by Alan Ross Reviews) | - |
| Party Mode | Yes (Brane app, up to 8 speakers) | Yes (Wi-Fi multi-room) |
| Power Input | AC Power brick | 100 - 240V AC, ~ 50/60Hz |
| Stereo | Yes | Yes |
| Omnidirectional | No | - |
| TWS | Yes | - |
| Weight | 7.7 lbs (3.5 kg) | 17.2 lbs (7.8 kg) |
| Wi-Fi | Yes | Yes (IEEE 802.11 a/b/g/n/ac/ax, 2.4GHz/5GHz) |
| App | No | Yes |
| Built-in Microphone | Yes | - |
| Voice Assistants | Amazon Alexa | Amazon Alexa & Google Assistant (simultaneous) |
| EQ | No | Yes |
| Power Bank | No | - |
| Dimensions | 9.3" x 7" x 6.1" (236 x 178 x 155 mm) | 17.6" x 9.4" x 10.1" (447 x 240 x 255.7 mm) |
| Drivers | 2x 2.5" midrange, 2x 0.75" tweeters + 6.5"x9" subwoofer | 6.5" (down-firing subwoofer), 3x 2.75" midranges, 3x 1" (25mm aluminum dome) tweeters |
| Frequency Response | 30Hz - 20kHz (Manufacturer specified) | 40Hz - 20kHz (-6dB) (Manufacturer specified) |
| Amplifier Power | 200W | 270W (Max @ THD 1%) |
| Digital Aux Input | No | - |
| Bluetooth Version | 5.1 | 5.3 |
| Dolby Atmos | - | Yes (virtual) |
| Ethernet | - | Yes |
| Configuration | - | 3.1 channel |
| Streaming Services | - | AirPlay 2, Chromecast, Spotify Connect, Tidal Connect, Alexa MRM |
| Inputs | - | USB-C (USB playback, US only) |
| XLR Input | - | No |
| RCA Input | - | No |
| TRS Input | - | No |
| Optical Input | - | No |
| Coaxial Input | - | No |
| USB Input | - | Yes |
| HDMI Input | - | No |
| AES Input | - | No |
| Bluetooth | - | Yes, 5.3 |
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- Brane X vs Minirig 4 with subwoofer
- Brane X vs Minirig 3 with subwoofer
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
JBL Authentics 500: $600 each Amazon eBay
Pros: JBL Authentics 500 uses 6.5” (down-firing subwoofer), 3x 2.75” midranges, 3x 1” (25mm aluminum dome) tweeters. Its 7.8 kg, aux input and stereo playback make it a practical option for its intended room or portable use.
Cons: Its 40Hz - 20kHz (-6dB) (Manufacturer specified) specification points to limited deep-bass reach for the cabinet size.
Full JBL Authentics 500 review and specifications →
| AES Input | No |
|---|---|
| Amplifier Power | 270W (Max @ THD 1%) |
| App | Yes |
| Aux Input | Yes |
| Battery Life | No Battery |
| Bluetooth | Yes, 5.3 |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.3 |
| Coaxial Input | No |
| Configuration | 3.1 channel |
| Dimensions | 17.6" x 9.4" x 10.1" (447 x 240 x 255.7 mm) |
| Dolby Atmos | Yes (virtual) |
| Drivers | 6.5" (down-firing subwoofer), 3x 2.75" midranges, 3x 1" (25mm aluminum dome) tweeters |
| EQ | Yes |
| Ethernet | Yes |
| Frequency Response | 40Hz - 20kHz (-6dB) (Manufacturer specified) |
| HDMI Input | No |
| IP Rating | None |
| Inputs | USB-C (USB playback, US only) |
| Optical Input | No |
| Party Mode | Yes (Wi-Fi multi-room) |
| Power Input | 100 - 240V AC, ~ 50/60Hz |
| RCA Input | No |
| Stereo | Yes |
| Streaming Services | AirPlay 2, Chromecast, Spotify Connect, Tidal Connect, Alexa MRM |
| TRS Input | No |
| USB Input | Yes |
| Voice Assistants | Amazon Alexa & Google Assistant (simultaneous) |
| Weight | 17.2 lbs (7.8 kg) |
| Wi-Fi | Yes (IEEE 802.11 a/b/g/n/ac/ax, 2.4GHz/5GHz) |
| XLR Input | No |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
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