Short answer: the Audioengine HD3. It ranks #29 of 48 powered bookshelf speakers by sound quality (rated 3.2/5) at $359 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 case for the Midiplus MI3 II: Compact desktop speakers with Bluetooth, analog inputs and a treble adjustment for a basic computer setup. The catch: Preference scores of 0.99 standalone and 3.84 with an ideal subwoofer are poor.
The Audioengine HD3 is the better-sounding option. Compact powered desktop speakers with Bluetooth and analog inputs for when space is tight. Watch for: Limited bass makes a subwoofer useful for fuller music reproduction.
Buy the Audioengine HD3. It is rated higher for sound quality, and the Midiplus MI3 II is discontinued, so it is only available used.
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Prices on this page were last checked November 7, 2026 at 7:34 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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Specifications Side By Side
| Midiplus MI3 II | Audioengine HD3 | |
|---|---|---|
| Price | $139 per pair Discontinued | $359.00 per pair |
| Ranked | #47 of 48 in Small Size Powered Bookshelf Speakers | #29 of 48 in Small Size Powered Bookshelf Speakers |
| Weight | 3.9 lbs (1.77 kg) | 7.3 lbs (3.3 kg) |
| Enclosure | Powered 2-way | - |
| Drivers | 0.75-inch silk tweeter, 3-inch fiberglass woofer | 2.75” woofer, 0.75” silk dome tweeter |
| Frequency Response | 70Hz-25kHz | 65 Hz-20 kHz (-3dB) (Manufacturer specified) |
| Amplifier Power | 60W RMS per pair | 30W total (15W per speaker) |
| Maximum SPL | 98dB | 90dB @ 1m (manufacturer specified) |
| Inputs | RCA, 3.5mm, Bluetooth | Bluetooth, Aux, RCA Input |
| Dimensions | 6.5H x 4.7W x 6D in | 9”H x 5.5”W x 6.5”D (228.6 x 139.7 x 165.1 mm) |
| Spinorama Preference Score | 0.99 | - |
| Spinorama Preference Score with Perfect Sub | 3.84 | - |
| XLR Input | No | No |
| RCA Input | Yes | Yes |
| TRS Input | No | 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 |
| Bluetooth | Yes | Yes |
| Bluetooth Version | 5.0 | 5.0 |
| Outputs | - | RCA variable output (subwoofer) |
| App | - | No |
| Bass Extension (-10dB) | - | 58Hz |
| Bass Extension (-3dB) | - | 65Hz |
| Bluetooth Codecs | - | SBC, aptX |
| EQ | - | No |
| Subwoofer Output | - | Yes |
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