
Logitech Z407
Score: 84/100
Zqmmspk K40
Score: 84/100Rankings

The Logitech Z407 is a compact 2.1 Bluetooth speaker system that delivers balanced sound with a respectable 40 W RMS output, complemented by a wireless remote for convenient control. While the subwoofer adds depth, it may distort at high volumes, and cable lengths are modest.

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 | ![]() | ![]() |
|---|---|---|
40 W | 60 Wbest | |
| ↓ lower better | 40 Hz | 20 Hzbest |
20,000 Hzbest | 20,000 Hzbest | |
64 mm | 76 mmbest | |
1 yearsbest | 1 yearsbest | |
| ↓ lower better | 3.999 kg | 3.195 kgbest |
8 Ωbest | 4 Ω | |
20 mbest | 10.1 m |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Audio(5) | ||
Total Output Power (W) | 40 W | 60 W |
Frequency Response (Low) (Hz) | 40 Hz | 20 Hz |
Driver Size (mm) | 64 mm | 76 mm |
Impedance (Ω) | 8 Ω | 4 Ω |
Audio Output Mode | 2.1-channel | Stereo |
Power & Battery(1) | ||
Power Source Type | AC | Corded |
Connectivity(3) | ||
Bluetooth Version | 5.0 | 5.3 |
Bluetooth Range (m) | 20 m | 10.1 m |
Connectivity Options | Bluetooth, 3.5mm AUX, micro‑USB, RCA | Bluetooth, USB-C, 3.5mm AUX, RCA |
Build & Design(1) | ||
Control Method | Remote | Touch |
Accessories(1) | ||
Included Accessories | Subwoofer, satellites, remote, AUX cable, stands, power cable, batteries | 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) | 3.999 kg | 3.195 kg |
Dimensions | 185x244x315 mm | 193x118x145 mm |


Products in the top-left offer the best value (high score, low price).

Professional reviewers praise the Z407 for its powerful, balanced audio with rich lows and bright highs, noting the useful wireless remote and thoughtful satellite positioning, while pointing out subwoofer distortion at full volume and limited bass extension.
Everyday users appreciate the easy setup, significant audio upgrade over built-in speakers, and the convenience of the long-range remote, though some complain about subwoofer distortion at high levels and the unlabeled remote.

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.
“Powerful audio performance with rich lows and bright highs”

“The ease of setup and plug-and-play functionality is a major plus”


