Short answer: the Kali Audio LP-UNF. It ranks #45 of 108 powered bookshelf speakers by sound quality, rated 3.9/5, at $349; the Audioengine HD3 ranks #29, rated 3.2/5, and costs $359, so there is little reason to consider the other one.
On the Kali Audio LP-UNF side: 1” dome tweeter on a waveguide crossed unusually low at 1.9kHz to a 4.5” ported midwoofer. The tradeoff: F3 of 54Hz and F10 of 39Hz mean bass rolls off quickly below about 40Hz, bottoming out around 50Hz in-room.
Buy the Kali Audio LP-UNF. It is rated higher for sound quality than the Audioengine HD3 and costs less, so it is the default pick unless a specific strength of the other one matters more to you.
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Specifications Side By Side
| Audioengine HD3 | Kali Audio LP-UNF | |
|---|---|---|
| Price | $359.00 per pair | $349.00 per pair |
| Ranked | #29 of 48 in Small Size Powered Bookshelf Speakers | #45 of 108 in Medium Size Powered Bookshelf Speakers |
| Dimensions | 9”H x 5.5”W x 6.5”D (228.6 x 139.7 x 165.1 mm) | 10”H x 6.5”W x 7.4”D (254 x 165 x 188 mm) |
| Frequency Response | 65 Hz-20 kHz (-3dB) (Manufacturer specified) | 39Hz - 25kHz (-10dB) (Manufacturer specified) |
| Inputs | Bluetooth, Aux, RCA Input | Bluetooth, USB-C (digital), RCA, TRS |
| Outputs | RCA variable output (subwoofer) | - |
| Weight | 7.3 lbs (3.3 kg) | 17.2 lbs (7.8 kg) |
| Drivers | 2.75” woofer, 0.75” silk dome tweeter | 4.5” woofer, 1” Textile Dome tweeter |
| App | No | No |
| Bass Extension (-10dB) | 58Hz | 39Hz (measured, Erin’s Audio Corner) |
| Bass Extension (-3dB) | 65Hz | 54Hz (measured, Erin’s Audio Corner) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC, aptX | - |
| Bluetooth Version | 5.0 | 5.1 |
| EQ | No | No |
| Amplifier Power | 30W total (15W per speaker) | 160W total (Class D, 2-channel bi-amped) |
| Maximum SPL | 90dB @ 1m (manufacturer specified) | - |
| Subwoofer Output | Yes | - |
| XLR Input | No | No |
| RCA Input | Yes | Yes |
| TRS Input | No | Yes |
| Optical Input | No | No |
| Coaxial Input | No | No |
| USB Input | No | Yes |
| HDMI Input | No | No |
| AES Input | No | No |
| Aux Input | Yes | No |
| Sensitivity | - | 88.1dB (measured at 0.3V/1m, Erin’s Audio Corner) |
| Spinorama Preference Score | - | 4.60 |
| Spinorama Preference Score with Perfect Sub | - | 6.67 |
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