Short answer: the ADAM Audio D3v. It ranks #3 of 48 powered bookshelf speakers by sound quality, rated 4.5/5, at $349.99; the Kanto ORA4 ranks #12, rated 3.8/5, and costs $449.99, which makes this an easy call rather than a real tradeoff.
What the Kanto ORA4 does well: Compact desktop speakers with good sound for the size, deeper bass than most desk speakers, and USB-C and Bluetooth inputs. Watch for: Its score here is our estimate: spinorama.org hasn’t published numeric data for it yet, so we traced Erin’s Audio Corner’s published charts, which put its preference score with an ideal subwoofer at roughly 6.9, level with the better small powered speakers but short of the best.
The ADAM Audio D3v is the better-sounding choice. Small desktop monitors with very accurate sound and surprisingly deep bass for their size, plus a simple USB connection. The tradeoff: A rising upper-frequency balance and vertical crossover interference keep it from being uniformly neutral at every angle; aim the tweeters toward ear height.
Buy the ADAM Audio D3v. It is rated higher for sound quality than the Kanto ORA4 and costs less, which makes it the one to get unless you need something the other one does better.
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Measured Differences
- Close enough not to matter: bass extension (43 Hz vs 45 Hz, 10 dB down).
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Specifications Side By Side
| Kanto ORA4 | ADAM Audio D3v | |
|---|---|---|
| Price | $449.99 per pair | $349.99 per pair |
| Ranked | #12 of 48 in Small Size Powered Bookshelf Speakers | #3 of 48 in Small Size Powered Bookshelf Speakers |
| Weight | 4.4 lbs (2 kg) | 7.9 lbs (3.58 kg) (pair) |
| Dimensions | 8.3”H x 4.7”W x 6.7”D (211 x 120 x 170 mm) | 200H (240H on included stand) x 115W x 150D mm |
| Amplifier Power | 70W RMS total (140W peak) per pair | 100W RMS per speaker (70W woofer + 30W tweeter) (Manufacturer specified) |
| Drivers | 3/4” silk dome tweeter, 4” aluminum cone woofer | 3.5” aluminium woofer, D-ART folded ribbon tweeter, 2 x 3.5” passive radiators (each) |
| Frequency Response | 60Hz - 22kHz (Manufacturer specified) | 48Hz - 22.6kHz (-3dB) (Manufacturer specified) |
| Inputs | RCA, USB-C, Bluetooth | USB-C, balanced 1/4-inch TRS |
| RCA Input | Yes | No |
| USB Input | Yes (USB-C) | Yes |
| Optical Input | No | No |
| Coaxial Input | No | No |
| HDMI Input | No | No |
| XLR Input | No | No |
| Aux Input | No | No |
| Bluetooth | Yes | No |
| Bluetooth Version | 5.0 | - |
| Bluetooth Codecs | SBC | - |
| Subwoofer Output | Yes (automatic 80Hz crossover) | - |
| Bass Extension (-3dB) | 54Hz (measured, Erin’s Audio Corner charts) | 50Hz (measured, Erin’s Audio Corner) |
| Bass Extension (-10dB) | 43Hz (measured, Erin’s Audio Corner charts) | 45Hz (measured, Erin’s Audio Corner) |
| App | - | No |
| EQ | - | Yes (Room adjustment filters) |
| Sensitivity | - | 86.5dB (measured at 0.3V/1m, Erin’s Audio Corner) |
| Maximum SPL | - | 98dB peak @ 1m (IEC-weighted noise, manufacturer specified) |
| Spinorama Preference Score | - | 5.37 |
| Spinorama Preference Score with Perfect Sub | - | 7.59 |
| TRS Input | - | Yes |
| AES Input | - | No |
| Outputs | - | 3.5mm headphone |
| Headphone Output | - | Yes |
Watch Them Compared
Videos and reviews that test both speakers side by side.
Where the Ratings Come From
- Kanto ORA4: reviews by Erin’s Audio Corner and Jasper Tech.
- ADAM Audio D3v: Spinorama.org measurements and reviews by Erin’s Audio Corner and Jasper Tech.
This comparison is generated from the ratings, specifications and measurements on each product’s own page, and it updates when that data changes. How we rank explains how each rating is decided.
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