Short answer: the ADAM Audio D3v. It ranks #3 of 48 powered bookshelf speakers by sound quality, rated 4.5/5, at $349. The Fiio SP3 ranks #38, rated 2.9/5, at $299.99, $49.01 cheaper, which does not close the gap in sound quality.
The ADAM Audio D3v is the more accurate, deeper-bass choice. Small desktop monitors with very accurate sound and surprisingly deep bass for their size, plus a simple USB connection. Its measured preference score, a predictor of how neutral it sounds, is 5.37 against 3.56 for the Fiio SP3. Its bass reaches about 50Hz before falling 3dB, against 59Hz for the Fiio SP3. Watch for: A rising upper-frequency balance and vertical crossover interference keep it from being uniformly neutral at every angle; aim the tweeters toward ear height.
What the Fiio SP3 does well: Small angled desktop speakers that fit a tight desk and reach a little deeper in the bass than many similar sized pairs. It keeps a wired aux input, which the ADAM Audio D3v lacks. The catch: The response rises strongly toward the treble, about 1.13dB per octave, with a recessed midrange and problematic crossover behavior.
Buy the ADAM Audio D3v. It is rated higher for sound quality, and saving $49.01 with the Fiio SP3 does not make up for the sound-quality gap.
Looking for alternatives? See the complete Powered Home rankings.
Small desktop monitors with very accurate sound and surprisingly deep bass for their size, plus a simple USB connection.
Small angled desktop speakers that fit a tight desk and reach a little deeper in the bass than many similar sized pairs.
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Specifications Side By Side
| ADAM Audio D3v | Fiio SP3 | |
|---|---|---|
| Price | $349.00 per pair | $299.99 per pair |
| Ranked | #3 of 48 in Small Size Powered Bookshelf Speakers | #38 of 48 in Small Size Powered Bookshelf Speakers |
| Bass Extension (-10dB) | 45Hz (measured, Erin’s Audio Corner) | 53Hz (measured, Erin’s Audio Corner) |
| Bass Extension (-3dB) | 50Hz (measured, Erin’s Audio Corner) | 59Hz (measured, Erin’s Audio Corner) |
| App | No | - |
| Bluetooth | No | No |
| Dimensions | 200H (240H on included stand) x 115W x 150D mm | 6.4”H x 4.7”W x 5.2”D (163 x 120 x 132 mm) |
| EQ | Yes (Room adjustment filters) | - |
| Frequency Response | 48Hz - 22.6kHz (-3dB) (Manufacturer specified) | 65Hz - 20kHz (±2dB) (Manufacturer specified) |
| Inputs | USB-C, balanced 1/4-inch TRS | AUX, RCA |
| Sensitivity | 86.5dB (measured at 0.3V/1m, Erin’s Audio Corner) | - |
| Drivers | 3.5” aluminium woofer, D-ART folded ribbon tweeter, 2 x 3.5” passive radiators (each) | 3.5” carbon fiber midwoofer, 1” silk dome tweeter |
| Weight | 7.9 lbs (3.58 kg) (pair) | 4.3 lbs (1.95 kg) each |
| Amplifier Power | 100W RMS per speaker (70W woofer + 30W tweeter) (Manufacturer specified) | 40W total (30W midwoofer + 10W tweeter) |
| Maximum SPL | 98dB peak @ 1m (IEC-weighted noise, manufacturer specified) | - |
| Spinorama Preference Score | 5.37 | 3.56 |
| Spinorama Preference Score with Perfect Sub | 7.59 | 6.17 |
| XLR Input | No | No |
| RCA Input | No | Yes |
| TRS Input | Yes | No |
| Optical Input | No | No |
| Coaxial Input | No | No |
| USB Input | Yes | No |
| HDMI Input | No | No |
| AES Input | No | No |
| Aux Input | No | Yes |
| Outputs | 3.5mm headphone | - |
| Headphone Output | Yes | - |
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