Short answer: the Fluid Audio C35BT. It ranks #35 of 48 powered bookshelf speakers by sound quality (rated 3.0/5) at $139 and is still sold new; the Midiplus MI3 II ranks #47 (rated 2.4/5) and is discontinued, so it is only an option used. The Midiplus MI3 II’s replacement, the Midiplus MI3 II V2, is rated 2.5/5 at $139.
The Fluid Audio C35BT is the more accurate pick. An inexpensive desktop pair with Bluetooth, balanced inputs, a front volume knob and a headphone jack for a basic computer setup. Its measured preference score, a predictor of how neutral it sounds, is 2.57 against 0.99 for the Midiplus MI3 II. The tradeoff: Preference scores of 2.57 standalone and 5.57 with an ideal subwoofer indicate that the limitations are not just missing bass.
What the Midiplus MI3 II does well: Compact desktop speakers with Bluetooth, analog inputs and a treble adjustment for a basic computer setup. The tradeoff: Preference scores of 0.99 standalone and 3.84 with an ideal subwoofer are poor.
Buy the Fluid Audio C35BT. It is rated higher for sound quality; the Midiplus MI3 II is no longer sold new.
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Specifications Side By Side
| Fluid Audio C35BT | Midiplus MI3 II | |
|---|---|---|
| Price | $139.00 per pair | $139 per pair Discontinued |
| Ranked | #35 of 48 in Small Size Powered Bookshelf Speakers | #47 of 48 in Small Size Powered Bookshelf Speakers |
| Enclosure | Powered 2-way, front-ported | Powered 2-way |
| Drivers | 0.8” silk-dome tweeter, 3.5” composite woofer | 0.75-inch silk tweeter, 3-inch fiberglass woofer |
| Amplifier Power | 64W total | 60W RMS per pair |
| Inputs | Bluetooth, RCA, 3.5mm, balanced TRS | RCA, 3.5mm, Bluetooth |
| Outputs | Headphone | - |
| Dimensions | 7.3H x 4.9W x 5.9D in | 6.5H x 4.7W x 6D in |
| Spinorama Preference Score | 2.57 | 0.99 |
| Spinorama Preference Score with Perfect Sub | 5.57 | 3.84 |
| Headphone Output | Yes | - |
| 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 |
| Weight | 10 lbs (4.52 kg) pair | 3.9 lbs (1.77 kg) |
| Bluetooth | Yes | Yes |
| Bluetooth Version | 5.0 | 5.0 |
| Frequency Response | 80Hz - 20kHz (Manufacturer specified) | 70Hz-25kHz |
| Maximum SPL | - | 98dB |
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