Short answer: the ADAM Audio D3v. It ranks #3 of 47 powered bookshelf speakers by sound quality, rated 4.5/5, at $349.99. The Fiio SP3 ranks #37, rated 2.9/5, at $299.99, $50 cheaper, which does not close the gap in sound quality.
The ADAM Audio D3v is the more accurate, deeper-bass choice. Excellent midrange linearity for a tiny desktop speaker: Erin’s Klippel data spans just 1.7dB from 300Hz to 5kHz. 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: Compact cabinets and angled bases fit a small desk. 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 $50 with the Fiio SP3 does not make up for the sound-quality gap.
Looking for alternatives? See the complete Powered Home rankings.
Specifications Side By Side
| ADAM Audio D3v | Fiio SP3 | |
|---|---|---|
| Price | $349.99 per pair | $299.99 per pair |
| Ranked | #3 of 47 in Small Size Powered Bookshelf Speakers | #37 of 47 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 | - |
Frequency Response Compared
Both speakers’ spinorama measurements, overlaid. A flatter line is more neutral: peaks sound forward or harsh, dips sound recessed. Each curve is shifted so its average from 300 Hz to 3 kHz sits at 0 dB, so loudness differences between the two are removed and only the shape is compared.
Measurement data: ADAM Audio D3v (measured by Erin’s Audio Corner) and Fiio SP3 (measured by Erin’s Audio Corner), via spinorama.org.
Related Speaker Comparisons
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Prices on this page were last checked October 15, 2026 at 5:41 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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The Two Speakers In Full
ADAM Audio D3v: $349.99 per pair Amazon $349.99 eBay
Pros: Excellent midrange linearity for a tiny desktop speaker: Erin’s Klippel data spans just 1.7dB from 300Hz to 5kHz. Side passive radiators help bass reach -3dB at about 51Hz, substantially deeper than the Genelec 8010A or Audio Smile Little British Monitor. Predicted preference scores of 5.37 standalone and 7.59 with an ideal subwoofer support it as a particularly useful compact system without a sub. USB-C, analog inputs and placement filters simplify desk setup. Measured bass extension of 50Hz (-3dB), with a measured sensitivity of 86.5dB.
Cons: A rising upper-frequency balance and vertical crossover interference keep it from being uniformly neutral at every angle; aim the tweeters toward ear height. The limiter reduces bass and midrange output as volume rises, with the existing review’s compression tests putting usable maximum output around 89-90dB at 1m. Deep bass at moderate volume should not be confused with high output capability.
Full ADAM Audio D3v review and specifications →
| Released | Nov 2024 (1 year ago) |
|---|---|
| AES Input | No |
| Amplifier Power | 100W RMS per speaker (70W woofer + 30W tweeter) (Manufacturer specified) |
| App | No |
| Aux Input | No |
| Bass Extension (-10dB) | 45Hz (measured, Erin’s Audio Corner) |
| Bass Extension (-3dB) | 50Hz (measured, Erin’s Audio Corner) |
| Bluetooth | No |
| Coaxial Input | No |
| Dimensions | 200H (240H on included stand) x 115W x 150D mm |
| Drivers | 3.5” aluminium woofer, D-ART folded ribbon tweeter, 2 x 3.5” passive radiators (each) |
| EQ | Yes (Room adjustment filters) |
| Frequency Response | 48Hz - 22.6kHz (-3dB) (Manufacturer specified) |
| HDMI Input | No |
| Headphone Output | Yes |
| Inputs | USB-C, balanced 1/4-inch TRS |
| Maximum SPL | 98dB peak @ 1m (IEC-weighted noise, manufacturer specified) |
| Optical Input | No |
| Outputs | 3.5mm headphone |
| RCA Input | No |
| Sensitivity | 86.5dB (measured at 0.3V/1m, Erin’s Audio Corner) |
| Spinorama Preference Score | 5.37 |
| Spinorama Preference Score with Perfect Sub | 7.59 |
| TRS Input | Yes |
| USB Input | Yes |
| Weight | 7.9 lbs (3.58 kg) (pair) |
| XLR Input | No |
- Links
- Reviews, Comparisons and Sound Samples
- Erin’s Audio Corner: ADAM Audio D3V: Mighty Small But Mighty Awesome Desktop Speaker More from Erin’s Audio Corner →
- Erin’s Audio Corner: The Best Budget Desktop Speakers, Tested & Rated
- Erin’s Audio Corner Measurements (spinorama.org)
- Jasper Tech: Are the D3V The Best Studio Monitors For The Money? More from Jasper Tech →
- Jasper Tech: Best Desktop Computer Speakers for Every Budget – 2026
- Erin’s Audio Review Adam Audio D3v
- Head-to-Head Comparisons
- ADAM Audio D3v vs Genelec 8010A
- ADAM Audio D3v vs Cambridge Audio L/R S
- ADAM Audio D3v vs Audio Smile Little British Monitor
- ADAM Audio D3v vs IK Multimedia iLoud Micro Monitor
- ADAM Audio D3v vs IK Multimedia iLoud Micro Monitor Pro
- ADAM Audio D3v vs Edifier M60
- ADAM Audio D3v vs HiVi Swan X3
- ADAM Audio D3v vs Edifier MR3
- See all 25 comparisons
Fiio SP3: $299.99 per pair Amazon $299.99 eBay
Pros: Compact cabinets and angled bases fit a small desk. The existing review found useful dynamic capability at higher frequencies, so lack of output is not the only issue. Erin’s Klippel data shows a measured -3dB bass point around 60Hz, deeper than several similarly sized alternatives. Measured bass extension of 59Hz (-3dB).
Cons: The response rises strongly toward the treble, about 1.13dB per octave, with a recessed midrange and problematic crossover behavior. Its 3.56 standalone and 6.17 ideal-subwoofer scores do not capture the full practical impact of the review’s boomy bass and off-axis tonal problems. Changing angle trades one coloration for another. Those audible limitations weigh against it more heavily than its numerical score or build quality.
Full Fiio SP3 review and specifications →
| Released | Jan 2023 (3 years ago) |
|---|---|
| AES Input | No |
| Amplifier Power | 40W total (30W midwoofer + 10W tweeter) |
| Aux Input | Yes |
| Bass Extension (-10dB) | 53Hz (measured, Erin’s Audio Corner) |
| Bass Extension (-3dB) | 59Hz (measured, Erin’s Audio Corner) |
| Bluetooth | No |
| Coaxial Input | No |
| Dimensions | 6.4”H x 4.7”W x 5.2”D (163 x 120 x 132 mm) |
| Drivers | 3.5” carbon fiber midwoofer, 1” silk dome tweeter |
| Frequency Response | 65Hz - 20kHz (±2dB) (Manufacturer specified) |
| HDMI Input | No |
| Inputs | AUX, RCA |
| Optical Input | No |
| RCA Input | Yes |
| Spinorama Preference Score | 3.56 |
| Spinorama Preference Score with Perfect Sub | 6.17 |
| TRS Input | No |
| USB Input | No |
| Weight | 4.3 lbs (1.95 kg) each |
| XLR Input | No |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons