Ottosing H21
Score: 80/100
Audioengine A2+ Limited
Score: 84/100Rankings
The Audioengine A2+ Limited Edition delivers audiophile-grade, 24-bit sound in a compact, hand-crafted wood design with versatile connectivity, making it ideal for desktop gaming and music production.
The Ottosing H21 offers a compact USB-powered 2.0 stereo setup with a 3.5 mm aux input, delivering clear mids and highs for budget-conscious users. While the advertised 180 W power is overstated, the speakers provide decent sound for everyday tasks, though bass and wireless features are limited.
| Attribute | | |
|---|---|---|
180 Wbest | 60 W | |
11 W | 30 Wbest | |
150 Hzbest | 65 Hz | |
20,000 Hz | 22,000 Hzbest | |
— | 30 mbest | |
50.8 mmbest | — | |
88 dB | 95 dBbest | |
— | 70 mmbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Power & Battery(1) | ||
Power Source | USB | AC |
Audio(5) | ||
Frequency Response (Low) (Hz) | 150 Hz | 65 Hz |
Frequency Response (High) (Hz) | 20000 Hz | 22000 Hz |
Total Output Power (W) | 180 W | 60 W |
RMS Power (W) | 11 W | 30 W |
Signal‑to‑Noise Ratio (dB) | 88 dB | 95 dB |
Build & Design(3) | ||
Speaker Type | Stereo | Active |
Mounting Type | Floor Standing, Desktop | Tabletop |
Weight (kg) | 0.68 kg | 3.04 kg |
Professional editors view the Ottosing H21 as a solid entry-level desktop speaker, praising its plug-and-play USB power, clean design, and clear mid-range performance, but note the absence of Bluetooth and limited bass depth, and caution buyers about the misleading 180 W power claim.
Everyday users consistently highlight the ease of setup, noticeable improvement over built-in laptop speakers, and the responsive volume knob, while common complaints revolve around weak bass, the non-customizable LED, and occasional confusion over the exaggerated power rating.
Professional reviewers praise the A2+ for its balanced sound, true stereo imaging, premium build, and aptX-HD Bluetooth 5.3, while noting limited bass and modest volume.
Users love the clear, detailed audio and sleek design, but complain about insufficient bass, the need for speaker stands, and occasional Bluetooth dropouts.
“Great sound for the price-much better than my laptop speakers.”
“Easy to set up-just plug in USB and audio jack.”
“Volume knob is very responsive and convenient.”
