Short answer: the Edifier S2000MKIII for better sound quality, the M-Audio BX4 D3 for the lower price. The Edifier S2000MKIII ranks #71 of 108 powered bookshelf speakers, rated 3.5/5, at $594.99. The M-Audio BX4 D3 ranks #75, rated 3.4/5, at $149, $445.99 cheaper.
The Edifier S2000MKIII is the more accurate pick. The available digitized response suggests substantial bass reach, with a -3dB estimate around 41Hz. Its measured preference score, a predictor of how neutral it sounds, is 4.24 against 3.29 for the M-Audio BX4 D3. The tradeoff: The 4.0dB midrange span and uneven predicted room response suggest meaningful coloration.
Why pick the M-Audio BX4 D3: Balanced TRS, RCA and front auxiliary/headphone connections, plus tone controls, make this a flexible inexpensive desktop pair. It keeps a wired aux input, which the Edifier S2000MKIII lacks. Watch for: A rising response of about 0.62dB per octave and listening-window deviation of 0.546 indicate bright, locally uneven reproduction.
Buy the Edifier S2000MKIII if sound quality is the priority over the price, or the M-Audio BX4 D3 if the price is the priority over sound quality.
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The available digitized response suggests substantial bass reach, with a -3dB estimate around 41Hz.
Amazon $594.99 eBay
Balanced TRS, RCA and front auxiliary/headphone connections, plus tone controls, make this a flexible inexpensive desktop pair.
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Specifications Side By Side
| Edifier S2000MKIII | M-Audio BX4 D3 | |
|---|---|---|
| Price | $594.99 per pair | $149 per pair |
| Ranked | #71 of 108 in Medium Size Powered Bookshelf Speakers | #75 of 108 in Medium Size Powered Bookshelf Speakers |
| Dimensions | 13.5”H x 7.8”W x 10.8”D (342.9 x 198.1 x 274.3 mm) | 8.9H x 6.1W x 6.9D in |
| Frequency Response | 40.5Hz at -3dB; 37Hz at -6dB (Spinorama) | 69Hz - 22kHz (Manufacturer specified) |
| Spinorama Preference Score | 4.24 | 3.29 |
| Inputs | Bluetooth, 2x RCA Input, Digital Optical, Digital Coax | TRS, RCA, 3.5mm aux; headphone output |
| Outputs | None | - |
| Drivers | 5.5” (140mm) woofer | 1” dome tweeter, 4.5” Kevlar woofer |
| App | No | - |
| Bluetooth | Yes | No |
| Bluetooth Version | 5.0 | - |
| Bluetooth Codecs | SBC, aptX HD | - |
| EQ | No | - |
| Amplifier Power | 65w RMS Per Speaker | 120W peak system |
| Weight | 20.7 lbs (9.4 kg) | 9.7 lbs (4.4 kg)/pair |
| Spinorama Preference Score with Perfect Sub | 5.99 | 6.03 |
| XLR Input | No | No |
| RCA Input | Yes | Yes |
| TRS Input | No | Yes |
| Optical Input | Yes | No |
| Coaxial Input | Yes | No |
| USB Input | No | No |
| HDMI Input | No | No |
| AES Input | No | No |
| Aux Input | No | Yes |
| Enclosure | - | 2-way powered stereo pair, rear-ported |
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: Edifier S2000MKIII (measured by an independent reviewer) and M-Audio BX4 D3 (measured by an independent reviewer), via spinorama.org.
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