Short answer: the B&O Beosound A1 2nd gen on measured sound quality, the Harman Kardon Luna 2 on price. The B&O Beosound A1 2nd gen ranks #11 of 177 medium speakers, rated 4.3/5, at $395. The Harman Kardon Luna 2 ranks #25, rated 4.1/5, at $199.95, $195.05 cheaper.
The Beosound A1 2nd gen is the more polished speaker. A 3.5-inch aluminum woofer and silk dome tweeter on two 30W amplifiers reach about 58Hz before falling 10dB, it claims 18 hours of battery, and it supports aptX Adaptive and AAC in an IP67 aluminum body.
The Luna 2 gets close for much less. Reviewers praise its spacious midrange, precise imaging and tight bass that stays clean at volume, and it has app EQ presets and stereo pairing. It is IP67. Its treble can sound bright, it loses output off-axis, and its battery is rated for 12 hours.
Buy the Harman Kardon Luna 2 if the price is the priority over sound quality, or the B&O Beosound A1 2nd gen if sound quality is the priority over the price.
Want more options? Browse the full Portable Bluetooth rankings.
A stylish waterproof speaker with clear, spacious mids, tight bass that stays clean at volume, and stereo pairing with a second unit.
A premium waterproof puck speaker with balanced sound, a built in strap, and a long battery for travel.
Prices on this page were last checked October 31, 2026 at 7:11 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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Specifications Side By Side
| Harman Kardon Luna 2 | B&O Beosound A1 2nd gen | |
|---|---|---|
| Price | $199.95 | $395.00 |
| Ranked | #25 of 177 in Medium Size Portable Bluetooth Speakers | #11 of 177 in Medium Size Portable Bluetooth Speakers |
| App | Yes | Yes |
| Aux Input | No | No |
| Battery Life | 12 hours (Manufacturer specified) | 18 hours (Manufacturer specified) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | SBC, AAC, aptX Adaptive |
| EQ | Yes (4 presets + custom) | Yes |
| IP Rating | IP67 | IP67 |
| MicroSD Playback | No | - |
| Power Input | USB-C | USB-C |
| Stereo | No | No |
| Omnidirectional | No | Pointing up |
| TWS | Yes | Yes |
| USB Playback | No | - |
| Weight | 1.6 lbs (735 g) | 1.2 lbs (558 g) |
| Bluetooth Version | 5.4 | 5.1 |
| Dimensions | 8.5” x 3.3” x 3.2” (216 x 84 x 81 mm) | 5.2”W x 5.2”D x 1.8”H (133 x 133 x 46 mm) |
| Drivers | 62mm x 82mm woofer with passive radiator, 20mm tweeter | 3.5mm aluminium driver + 0.75 inch silk dome tweeter |
| Frequency Response | 58Hz - 20kHz (-6dB) (Manufacturer specified) | - |
| Amplifier Power | 40W (25W woofer + 15W tweeter) | 60W total (2x 30W Class D) |
| Digital Aux Input | No | Yes (USB-C) |
| Strap | No | Yes (built-in strap) |
| Bass Extension (-10dB) | - | 58Hz |
| Built-in Microphone | - | Yes |
| Bluetooth Latency | - | 90ms |
| Maximum SPL | - | 93dB (measured by Alan Ross Reviews) |
| Power Bank | - | No |
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