These are not really the same size class, and that is the honest framing here. The Harman Kardon Luna 2 ranks #25 of 179 medium speakers by sound quality at $199.95; the Marshall Middleton ranks #33 of 120 large speakers by sound quality at $257.52.
The Harman Kardon Luna 2 is the lighter pick. A stylish waterproof speaker with clear, spacious mids, tight bass that stays clean at volume, and stereo pairing with a second unit. At 1.6 lbs (735 g) it weighs much less than the Marshall Middleton at 4 lbs (1.8 kg). It has an adjustable EQ, which the Marshall Middleton lacks. The tradeoff: Treble can sound bright and edgy, and it loses more output off-axis than some rivals.
The Marshall Middleton is the longer-running choice. A waterproof stereo speaker with very deep bass for its size, a long battery, a power bank and a detachable strap. It is rated for 20 hours of battery against 12 for the Harman Kardon Luna 2. It keeps a wired aux input, which the Harman Kardon Luna 2 lacks. It plays in stereo from a single unit, unlike the Harman Kardon Luna 2. The catch: 5db dip at 1.7kHz and 6.3kHz.
Buy the Harman Kardon Luna 2 ($199.95) for a medium speaker; the Marshall Middleton ($257.52) suits a large speaker instead.
Looking for alternatives? See the complete Portable Bluetooth rankings.
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Specifications Side By Side
| Harman Kardon Luna 2 | Marshall Middleton | |
|---|---|---|
| Price | $199.95 | $257.52 |
| Ranked | #25 of 179 in Medium Size Portable Bluetooth Speakers | #33 of 120 in Large Size Portable Bluetooth Speakers |
| App | Yes | No |
| Aux Input | No | Yes |
| Battery Life | 12 hours (Manufacturer specified) | 20 hours (Manufacturer specified) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | SBC |
| EQ | Yes (4 presets + custom) | No |
| IP Rating | IP67 | IPX7 |
| MicroSD Playback | No | - |
| Power Input | USB-C | USB-C |
| Stereo | No | Yes |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| USB Playback | No | - |
| Weight | 1.6 lbs (735 g) | 4 lbs (1.8 kg) |
| Bluetooth Version | 5.4 | 5.1 |
| Dimensions | 8.5” x 3.3” x 3.2” (216 x 84 x 81 mm) | 9.1” x 3.7” x 4.3” (230 x 95 x 109 mm) |
| Drivers | 62mm x 82mm woofer with passive radiator, 20mm tweeter | 2x 75mm woofers, 2x 0.625” tweeters + 2x passive radiators |
| Frequency Response | 58Hz - 20kHz (-6dB) (Manufacturer specified) | 50Hz - 20kHz (Manufacturer specified) |
| Amplifier Power | 40W (25W woofer + 15W tweeter) | 50W |
| Digital Aux Input | No | No |
| Strap | No | Yes (detachable strap) |
| Bass Extension (-10dB) | - | 39Hz |
| Maximum SPL | - | 99dB (measured by Alan Ross Reviews) |
| Party Mode | - | Yes (Marshall Stack) |
| Power Bank | - | Yes (USB-C) |
| Built-in Microphone | - | Yes |
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