Short answer: the Edifier MR3. It ranks #11 of 48 powered bookshelf speakers by sound quality, rated 3.8/5, at $149.99; the Fiio SP3 ranks #38, rated 2.9/5, and costs $299.99, so there is little reason to consider the other one.
The MR3 is the more natural-sounding desktop pair. Erin’s measurements show little overall tilt across the listening window, so voices sound broadly natural, and it has rear tone knobs, app room compensation, Bluetooth and balanced TRS and RCA inputs. Its bass stops around 70Hz (-3dB), and its limiter caps output at about 86 to 87dB at 1m per speaker.
The SP3 is a compact, angled pair with a bright tilt. Its 3.5-inch carbon-fiber woofers reach lower, about 59Hz before falling 3dB, and its angled bases fit a small desk. Its response rises about 1.13dB per octave toward the treble, its midrange is recessed and its bass boomy, and changing the angle just trades one coloration for another.
Buy the Edifier MR3. It is rated higher for sound quality than the Fiio SP3 and costs less, so only choose the other one for a particular feature it does better.
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Measured Differences
- Close enough not to matter: bass extension (53 Hz vs 53 Hz, 10 dB down); preference score with a subwoofer (6.5 vs 6.2).
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Specifications Side By Side
| Edifier MR3 | Fiio SP3 | |
|---|---|---|
| Price | $149.99 per pair | $299.99 per pair |
| Ranked | #11 of 48 in Small Size Powered Bookshelf Speakers | #38 of 48 in Small Size Powered Bookshelf Speakers |
| App | Yes (Edifier ConneX) | - |
| Dimensions | 8.7”H x 4.9”W x 7.3”D (220 x 125.5 x 185 mm) (active); 220H x 125.5W x 176D mm (passive) | 6.4”H x 4.7”W x 5.2”D (163 x 120 x 132 mm) |
| EQ | Yes (rear knobs and app room compensation) | - |
| Frequency Response | 52Hz - 40kHz (Manufacturer specified) | 65Hz - 20kHz (±2dB) (Manufacturer specified) |
| Inputs | Balanced TRS, RCA, Aux, Bluetooth | AUX, RCA |
| Weight | 8.5 lbs (3.85 kg) | 4.3 lbs (1.95 kg) each |
| Drivers | 3.5” mid-low driver, 1” silk dome tweeter | 3.5” carbon fiber midwoofer, 1” silk dome tweeter |
| Bass Extension (-10dB) | 53Hz (measured, Erin’s Audio Corner) | 53Hz (measured, Erin’s Audio Corner) |
| Bass Extension (-3dB) | 70Hz (measured, Erin’s Audio Corner) | 59Hz (measured, Erin’s Audio Corner) |
| Bluetooth | Yes | No |
| Bluetooth Codecs | SBC | - |
| Bluetooth Version | 5.4 | - |
| Amplifier Power | 36W total (18W per speaker) | 40W total (30W midwoofer + 10W tweeter) |
| Sensitivity | 83.3dB (measured at 0.3V/1m, Erin’s Audio Corner) | - |
| Maximum SPL | 93dB @ 1m (manufacturer specified) | - |
| Spinorama Preference Score | 3.91 | 3.56 |
| Spinorama Preference Score with Perfect Sub | 6.53 | 6.17 |
| XLR Input | No | No |
| RCA Input | Yes | Yes |
| TRS Input | Yes | No |
| Optical Input | No | No |
| Coaxial Input | No | No |
| USB Input | No | No |
| HDMI Input | No | No |
| AES Input | No | No |
| Aux Input | Yes | Yes |
| Outputs | 3.5mm headphone | - |
| Headphone Output | Yes | - |
Where the Ratings Come From
- Edifier MR3: Spinorama.org measurements and reviews by Erin’s Audio Corner and Jasper Tech.
- Fiio SP3: Spinorama.org measurements and reviews by Erin’s Audio Corner.
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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