Short answer: the Harman Kardon Luna 2 on measured sound quality, the Dayton Audio Boost on price. The Harman Kardon Luna 2 ranks #23 of 150 medium speakers, rated 4.1/5, at $199.95. The Dayton Audio Boost ranks #129, rated 2.4/5, at $29.98, $169.97 cheaper.
What the Harman Kardon Luna 2 does well: Articulate, spacious midrange with precise imaging and instrument separation. The catch: Treble can sound bright and edgy, and it loses more output off-axis than some rivals.
What the Dayton Audio Boost does well: Compact soda-can design, dual passive radiators, IPX5 waterproof, wireless stereo pairing capability, MicroSD card support. Watch for: Some midrange peaks, treble slightly rolled off.
Buy the Harman Kardon Luna 2 if sound quality is the priority over the price, or the Dayton Audio Boost if the price is the priority over sound quality.
There is a real battery-life gap here: the Harman Kardon Luna 2 is rated for 12 hours, the Dayton Audio Boost only 6 hours.
Want more options? Browse the full Portable Bluetooth rankings.
Specifications Side By Side
| Harman Kardon Luna 2 | Dayton Audio Boost | |
|---|---|---|
| Price | $199.95 | $29.98 |
| Ranked | #23 of 150 in Medium Size Portable Bluetooth Speakers | #129 of 150 in Medium Size Portable Bluetooth Speakers |
| App | Yes | No |
| Aux Input | No | Yes |
| Battery Life | 12 hours (Manufacturer specified) | 6 hours (Manufacturer specified) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | SBC (inferred; additional codecs unverified) |
| EQ | Yes (4 presets + custom) | No |
| IP Rating | IP67 | IPX7 |
| MicroSD Playback | No | Yes |
| Power Input | USB-C | USB-C |
| Stereo | No | Yes |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| USB Playback | No | - |
| Weight | 1.6 lbs (735 g) | 0.9 lbs (426 g) |
| Bluetooth Version | 5.4 | 5.0 |
| Dimensions | 8.5” x 3.3” x 3.2” (216 x 84 x 81 mm) | 3.5” x 3.5” x 4.3” (88.9 x 88.9 x 109.2 mm) |
| Drivers | 62mm x 82mm woofer with passive radiator, 20mm tweeter | 2x 1.5” full-range drivers + 2x passive radiators |
| Frequency Response | 58Hz - 20kHz (-6dB) (Manufacturer specified) | - |
| Amplifier Power | 40W (25W woofer + 15W tweeter) | - |
| Digital Aux Input | No | No |
| Strap | No | - |
| Bass Extension (-10dB) | - | 87Hz |
| Built-in Microphone | - | No |
Related Speaker Comparisons
How Harman Kardon Luna 2 compares with other leading options:
- Harman Kardon Luna 2 vs Earfun Uboom L
- Harman Kardon Luna 2 vs Soundcore Motion 300
- Harman Kardon Luna 2 vs Minirig 4
- Harman Kardon Luna 2 vs B&O Beosound A1 2nd gen
- Harman Kardon Luna 2 vs JBL Charge 6
Prices on this page were last checked September 30, 2026 at 2:57 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.
As an eBay Partner, we may be compensated if you make a purchase.
The Two Speakers In Full
Harman Kardon Luna 2: $199.95 Amazon B&H Photo Video eBay
Older model: the Harman Kardon Luna (ranked lower, rated 4/5).
Pros: Articulate, spacious midrange with precise imaging and instrument separation. Tight, well-controlled bass from the 62mm x 82mm woofer and passive radiator despite the compact body, and it stays cleaner at volume than pricier rivals like the Sonos Play. IP67 rated, and two units pair via AirTouch for true stereo sound.
Cons: Treble can sound bright and edgy, and it loses more output off-axis than some rivals. Some listeners hear mid-range rattling on certain tracks, similar to sibling JBL models. 12-hour battery life trails category leaders like the JBL Charge 6, which doubles it. Single unit is not stereo (1.1 driver layout).
Full Harman Kardon Luna 2 review and specifications →
| Amplifier Power | 40W (25W woofer + 15W tweeter) |
|---|---|
| App | Yes |
| Aux Input | No |
| Battery Life | 12 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.4 |
| Digital Aux Input | No |
| Dimensions | 8.5” x 3.3” x 3.2” (216 x 84 x 81 mm) |
| Drivers | 62mm x 82mm woofer with passive radiator, 20mm tweeter |
| EQ | Yes (4 presets + custom) |
| Frequency Response | 58Hz - 20kHz (-6dB) (Manufacturer specified) |
| IP Rating | IP67 |
| MicroSD Playback | No |
| Omnidirectional | No |
| Power Input | USB-C |
| Stereo | No |
| Strap | No |
| TWS | Yes |
| USB Playback | No |
| Weight | 1.6 lbs (735 g) |
- Links
- Reviews, Comparisons and Sound Samples
- What Hi-Fi?: Harman Kardon Luna 2 review
- Joy & Oluv’Sone: Sonos Play & Harman Kardon Luna 2 - listening test More from Oluv’Sone →
- Mateusz Cholewa: Harman Kardon Luna 2 UNBOXING vs HK Luna Short Test More from Mateusz Cholewa →
- Storytripper HD: Harman Kardon Luna vs Luna 2 More from storytripperhd →
- Head-to-Head Comparisons
- Harman Kardon Luna 2 vs Harman Kardon Luna
- Harman Kardon Luna 2 vs Bogasing G4
- Harman Kardon Luna 2 vs Xiaomi Sound Party
- Harman Kardon Luna 2 vs JBL Charge 5 Wifi
- Harman Kardon Luna 2 vs JBL Charge 5
- Harman Kardon Luna 2 vs B&O Beosound A1 3rd gen
- Harman Kardon Luna 2 vs Soundcore Boom 3i
- Harman Kardon Luna 2 vs Miatone Boompro
- See all 122 comparisons
Dayton Audio Boost: $29.98 Amazon eBay
Pros: Compact soda-can design, dual passive radiators, IPX5 waterproof, wireless stereo pairing capability, MicroSD card support. Measured bass extension of 87Hz (-10dB).
Cons: Some midrange peaks, treble slightly rolled off. Not much bass. Same hardware as the Boat Stone 350/352/358
Full Dayton Audio Boost review and specifications →
| App | No |
|---|---|
| Aux Input | Yes |
| Bass Extension (-10dB) | 87Hz |
| Battery Life | 6 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC (inferred; additional codecs unverified) |
| Bluetooth Version | 5.0 |
| Built-in Microphone | No |
| Digital Aux Input | No |
| Dimensions | 3.5” x 3.5” x 4.3” (88.9 x 88.9 x 109.2 mm) |
| Drivers | 2x 1.5” full-range drivers + 2x passive radiators |
| EQ | No |
| IP Rating | IPX7 |
| MicroSD Playback | Yes |
| Omnidirectional | No |
| Power Input | USB-C |
| Stereo | Yes |
| TWS | Yes |
| Weight | 0.9 lbs (426 g) |
- Links
- Reviews, Comparisons and Sound Samples
- No independent measurement review is linked for this model; it is ranked from hands-on listening and comparison against similarly priced speakers.
- Head-to-Head Comparisons
- Dayton Audio Boost vs Tribit Stormbox Mini+
- Dayton Audio Boost vs Marshall Emberton II
- Dayton Audio Boost vs Marshall Emberton III
- Dayton Audio Boost vs Ultimate Ears Boom 4
- Dayton Audio Boost vs Ultimate Ears Wonderboom 4
- Dayton Audio Boost vs Soundcore 2
- Dayton Audio Boost vs Tribit Stormbox 2
- Dayton Audio Boost vs Tribit Xsound Go
- See all 33 comparisons