Bose Companion 2 Series III
Score: 86/100
Zqmmspk K40
Score: 84/100Rankings
The Bose Companion 2 Series III delivers clear, balanced stereo sound with a spacious soundstage and convenient dual inputs, though it lacks modern wireless connectivity and deep bass.
The ZQMMSPK K40 is a compact 2.0 active bookshelf speaker system delivering 60 W RMS with a full 20 Hz-20 kHz range, Bluetooth 5.3 and USB-C connectivity. Its wooden cabinet and premium drivers provide clear mids and highs, though bass depth is limited without a subwoofer.
| Attribute | | |
|---|---|---|
100 Wbest | 60 W | |
| ↓ lower better | 65 Hz | 20 Hzbest |
20,000 Hzbest | 20,000 Hzbest | |
— | 76 mmbest | |
1 yearsbest | 1 yearsbest | |
| ↓ lower better | 2.223 kgbest | 3.195 kg |
— | 4 Ωbest | |
— | 10.1 mbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Audio(3) | ||
Total Output Power (W) | 100 W | 60 W |
Frequency Response (Low) (Hz) | 65 Hz | 20 Hz |
Audio Output Mode | Wired analog | Stereo |
Power & Battery(1) | ||
Power Source Type | AC adapter | Corded |
Connectivity(1) | ||
Connectivity Options | Dual 3.5mm inputs; headphone jack; AC power | Bluetooth, USB-C, 3.5mm AUX, RCA |
Build & Design(1) | ||
Control Method | Analog volume dial | Touch |
Accessories(1) | ||
Included Accessories | AC power adapter; 3.5 mm audio cable; proprietary interconnect cable | Active speaker ×1, Passive speaker ×1, AUX‑RCA cable, RCA cable, USB‑C audio cable, Power adapter, Speaker connecting cable, User manual |
Physical Specs(2) | ||
Overall Weight (kg) | 2.223 kg | 3.195 kg |
Dimensions | 19.0 x 7.9 x 15.0 cm | 193x118x145 mm |
Products in the top-left offer the best value (high score, low price).
Professional reviewers consistently highlight the Companion 2 Series III's clear, balanced sound and impressive soundstage, while noting the lack of Bluetooth or USB-C makes it feel dated.
Everyday users love the crisp, clear audio and dual inputs, but complain about the absence of Bluetooth and modest bass.
Professional editors note that the K40 fits the growing recommendation for powered bookshelf speakers as a step up from basic PC speakers, praising its active studio-monitor architecture, Bluetooth 5.3 and USB-C inputs as premium, future-proof features.
Early Reddit chatter shows users gravitating toward the K40 for its clear sound, strong vocal reproduction in calls, and overall value for a compact desktop speaker, while noting limited deep bass.
“sounds great”
“the best desktop speakers for most people”
