Short answer: the KEF Muo gen2, if you are buying new. The Minirig 3 ranks higher than it (#8 vs #94 of 164 medium speakers, 4.3/5 vs 3.1/5) but is discontinued, so only consider it used; the KEF Muo gen2 is still sold new at $249.99.
The Minirig 3 is the better-sounding, lighter option. Modular, can easily attach a subwoofer. At 1.2 lbs (550 g) it weighs noticeably less than the KEF Muo gen2 at 1.6 lbs (740 g). It keeps a wired aux input, which the KEF Muo gen2 lacks. The tradeoff: Calls itself splash resistant and has no official water rating.
The KEF Muo gen2 is the tougher pick. KEF seemed to have fixed the rolled off treble and overall balance. It is rated IP67 against Splash resistant for the Minirig 3. It supports aptX Adaptive Bluetooth, which the Minirig 3 lacks. It plays in stereo from a single unit, unlike the Minirig 3. Watch for: Lacking deeper bass.
Buy the KEF Muo gen2 if you want one new; the Minirig 3 is discontinued, so only look for it used.
Want more options? Browse the full Portable Bluetooth rankings.
Specifications Side By Side
| Minirig 3 | KEF Muo gen2 | |
|---|---|---|
| Price | $140 Discontinued | $249.99 |
| Ranked | #8 of 164 in Medium Size Portable Bluetooth Speakers | #94 of 164 in Medium Size Portable Bluetooth Speakers |
| App | Yes | Yes |
| Aux Input | Yes | No |
| Aux Latency | 0ms | - |
| Bass Extension (-10dB) | 53Hz | - |
| Battery Life | 30 hours (Manufacturer specified) | 24 hours (Manufacturer specified) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | aptX, AAC, SBC | SBC, aptX Adaptive up to 48 kHz 24 bit |
| Built-in Microphone | No | - |
| EQ | Yes | Yes |
| IP Rating | Splash resistant | IP67 |
| Bluetooth Latency | 60ms | - |
| Maximum SPL | 105dB (measured by Alan Ross Reviews) | 90dB (Manufacturer specified) |
| Power Bank | No | - |
| Power Input | Proprietary USB cable | USB-C |
| Stereo | No | Yes |
| Omnidirectional | Pointing up | No |
| TWS | Yes (Bluetooth or cable) | Yes |
| Weight | 1.2 lbs (550 g) | 1.6 lbs (740 g) |
| Bluetooth Version | 5.0 | 5.4 |
| Dimensions | 4” x 2.9” (101.6 x 73 mm) (diameter x height) | 8.5” x 3.2” x 2.3” (216 x 82 x 59 mm) |
| Drivers | 70mm custom driver | 1x 58x117mm racetrack woofer, 1x 20mm tweeter |
| Frequency Response | 60Hz - 18kHz (Manufacturer specified) | 43Hz - 20kHz (Manufacturer specified) |
| Amplifier Power | 40W | 40W |
| Digital Aux Input | No | Yes (USB-C) |
| Party Mode | - | Yes (Auracast) |
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- Minirig 3 vs Minirig 4
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Prices on this page were last checked October 4, 2026 at 9:58 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
Minirig 3: $140 Discontinued eBay
Newer model: the Minirig 4, ranked higher, rated 4.3/5.
Pros: Modular, can easily attach a subwoofer. Measured bass extension of 53Hz (-10dB).
Cons: Not stereo. Calls itself splash resistant and has no official water rating. App is buggy. Wireless TWS pairing is buggy. A bit expensive. Has reliability issues more often than any other speaker. Discontinued; Minirig now sells only the Minirig 4, and the old product page redirects to it.
Full Minirig 3 review and specifications →
| Amplifier Power | 40W |
|---|---|
| App | Yes |
| Aux Input | Yes |
| Aux Latency | 0ms |
| Bass Extension (-10dB) | 53Hz |
| Battery Life | 30 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | aptX, AAC, SBC |
| Bluetooth Latency | 60ms |
| Bluetooth Version | 5.0 |
| Built-in Microphone | No |
| 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 | 105dB (measured by Alan Ross Reviews) |
| Omnidirectional | Pointing up |
| Power Bank | No |
| Power Input | Proprietary USB cable |
| Stereo | No |
| TWS | Yes (Bluetooth or cable) |
| Weight | 1.2 lbs (550 g) |
- Reviews, Comparisons and Sound Samples
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- Alan Ross Reviews: Minirig 4 vs Minirig 3, stuff they tell you, stuff they don’t! 😂
- Beautiful Zar DJ: MINIRIG 4 Vs MINIRIG 3 (50-100%Volume Audio Test)
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- Head-to-Head Comparisons
KEF Muo gen2: $249.99 Amazon eBay
Pros: KEF seemed to have fixed the rolled off treble and overall balance
Cons: Lacking deeper bass. Very thuddy bass. Appears to be the exact same hardware but with updated tuning. Bass distorts as volume increases, and the claimed 43Hz extension is really only audible at low listening volumes, with a few seconds of lag after volume changes. Loses most of its bass off-axis. Customer reviews are mixed, ranging from praise for detail at low volume to complaints of a boxy, hollow sound.
Full KEF Muo gen2 review and specifications →
| Amplifier Power | 40W |
|---|---|
| App | Yes |
| Aux Input | No |
| Battery Life | 24 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC, aptX Adaptive up to 48 kHz 24 bit |
| Bluetooth Version | 5.4 |
| Digital Aux Input | Yes (USB-C) |
| Dimensions | 8.5” x 3.2” x 2.3” (216 x 82 x 59 mm) |
| Drivers | 1x 58x117mm racetrack woofer, 1x 20mm tweeter |
| EQ | Yes |
| Frequency Response | 43Hz - 20kHz (Manufacturer specified) |
| IP Rating | IP67 |
| Maximum SPL | 90dB (Manufacturer specified) |
| Omnidirectional | No |
| Party Mode | Yes (Auracast) |
| Power Input | USB-C |
| Stereo | Yes |
| TWS | Yes |
| Weight | 1.6 lbs (740 g) |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons