Short answer: the Harman Kardon Luna, if you are buying new. The Minirig 2 ranks higher than it (#9 vs #26 of 164 medium speakers, 4.3/5 vs 4.0/5) but is discontinued, so only consider it used; the Harman Kardon Luna is still sold new at $290.99.
The Minirig 2 is the longer-running, lighter pick. Modular, can easily attach a subwoofer. It is rated for 40 hours of battery against 12 for the Harman Kardon Luna. At 1.1 lbs (488 g) it weighs much less than the Harman Kardon Luna at 2.5 lbs (1.13 kg). It supports aptX Bluetooth, which the Harman Kardon Luna lacks. The catch: Calls itself splash resistant and has no official water rating.
The Harman Kardon Luna is the tougher option. The sound is fairly balanced apart from the boosted bass. It is rated IP67 against Splash resistant for the Minirig 2. The catch: Boosted bass, and less detailed than higher-ranked speakers.
Buy the Harman Kardon Luna new; the Minirig 2 is no longer sold new, so it only makes sense as a used find.
Still deciding? The full Portable Bluetooth rankings cover every ranked option.
Specifications Side By Side
| Minirig 2 | Harman Kardon Luna | |
|---|---|---|
| Price | $140 Discontinued | $290.99 |
| Ranked | #9 of 164 in Medium Size Portable Bluetooth Speakers | #26 of 164 in Medium Size Portable Bluetooth Speakers |
| App | Yes | No |
| Aux Input | Yes | No |
| Aux Latency | 0ms | - |
| Bass Extension (-10dB) | 54Hz | 57Hz |
| Battery Life | 40 hours (Manufacturer specified) | 12 hours (Manufacturer specified) |
| Built-in Microphone | No | - |
| EQ | Yes | No |
| IP Rating | Splash resistant | IP67 |
| Maximum SPL | 95dB (measured by Alan Ross Reviews) | - |
| Power Bank | No | - |
| Power Input | Proprietary USB cable | USB-C |
| Stereo | No | No |
| Omnidirectional | Pointing up | No |
| TWS | Yes (cable) | Yes |
| Weight | 1.1 lbs (488 g) | 2.5 lbs (1.13 kg) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | aptX | SBC |
| Bluetooth Latency | 150ms (1 speaker) / 500ms (2 speakers stereo) | - |
| Bluetooth Version | 4.2 | 5.3 |
| Drivers | 70mm speaker driver | 48mm x 90mm woofer, 20mm tweeter |
| Amplifier Power | 15W | 40W |
| Dimensions | 4” x 3” (102 x 76 mm) (diameter x height) | 8.3” x 3.1” x 3.1” (210 x 78 x 80 mm) |
| Digital Aux Input | No | No |
| MicroSD Playback | - | No |
| USB Playback | - | Yes |
| Frequency Response | - | 60Hz - 20kHz (Manufacturer specified) |
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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 2: $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 54Hz (-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’s current lineup is the Minirig 4, Subwoofer 4 Ultra and Finite MR-79.
Full Minirig 2 review and specifications →
| Amplifier Power | 15W |
|---|---|
| App | Yes |
| Aux Input | Yes |
| Aux Latency | 0ms |
| Bass Extension (-10dB) | 54Hz |
| Battery Life | 40 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | aptX |
| Bluetooth Latency | 150ms (1 speaker) / 500ms (2 speakers stereo) |
| Bluetooth Version | 4.2 |
| Built-in Microphone | No |
| Digital Aux Input | No |
| Dimensions | 4” x 3” (102 x 76 mm) (diameter x height) |
| Drivers | 70mm speaker driver |
| EQ | Yes |
| IP Rating | Splash resistant |
| Maximum SPL | 95dB (measured by Alan Ross Reviews) |
| Omnidirectional | Pointing up |
| Power Bank | No |
| Power Input | Proprietary USB cable |
| Stereo | No |
| TWS | Yes (cable) |
| Weight | 1.1 lbs (488 g) |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
Harman Kardon Luna: $290.99 Amazon eBay
Newer model: the Harman Kardon Luna 2, ranked higher, rated 4.1/5.
Pros: Harman Kardon Luna uses 48mm x 90mm woofer, 20mm tweeter. Its 1.13 kg, claimed 12 hours (Manufacturer specified) battery life, IP67 protection and mono playback make it a practical option for its intended room or portable use. The sound is fairly balanced apart from the boosted bass. Measured bass extension of 57Hz (-10dB).
Cons: Bass is limited by its 57Hz specification. There is no companion app. No EQ adjustment. Boosted bass, and less detailed than higher-ranked speakers.
Full Harman Kardon Luna review and specifications →
| Amplifier Power | 40W |
|---|---|
| App | No |
| Aux Input | No |
| Bass Extension (-10dB) | 57Hz |
| Battery Life | 12 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.3 |
| Digital Aux Input | No |
| Dimensions | 8.3” x 3.1” x 3.1” (210 x 78 x 80 mm) |
| Drivers | 48mm x 90mm woofer, 20mm tweeter |
| EQ | No |
| Frequency Response | 60Hz - 20kHz (Manufacturer specified) |
| IP Rating | IP67 |
| MicroSD Playback | No |
| Omnidirectional | No |
| Power Input | USB-C |
| Stereo | No |
| TWS | Yes |
| USB Playback | Yes |
| Weight | 2.5 lbs (1.13 kg) |
- Links
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