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  3. QS20 vs Onyx Studio 9

Edifier QS20 vs Harman-Kardon Onyx Studio 9

What QS20 does better (2) and where Onyx Studio 9 wins (2) — every spec side by side.

Edifier QS20
Edifier · 2025QS20
2 advantages
vs
Harman-Kardon Onyx Studio 9
Harman-Kardon · 2025Onyx Studio 9
5.0Score
2 advantages≈ $160
Higher score
2.9Sound6.4

Why is QS20 better than Onyx Studio 9?

  1. Weight327 g vs 3,300 g10.1×
  2. Bluetooth version6 vs 5.3+13%

Why is Onyx Studio 9 better than QS20?

  1. Output power6 W vs 50 W8.3×
  2. Lowest frequency87 Hz vs 50 Hz+74%
Specifications

Side by side

Sound
Driver size43 mm—
Output power6 W50 W
Speaker channels—Stereo
Lowest frequency87 Hz50 Hz
Highest frequency20,000 Hz20,000 Hz
Stereo—Yes
Battery & charging
Battery life—8 h
Battery capacity—4,722 mAh
Charging time—4 h
Power bank function—Yes
Mains powered—No
Battery powered (portable)—Yes
Connectivity
WirelessYesYes
Bluetooth version65.3
Bluetooth codecsSBCSBC
Hi-res codec (LDAC / aptX HD / LHDC)NoNo
aptXNoNo
LDACNoNo
Auracast—Yes
USB-C—Yes
3.5 mm jack / AUXYesYes
Design & build
Weight327 g3,300 g
Width—389 mm
Height—388 mm
Depth—130 mm
Colours—Black
Features
Hands-free calls—Yes
Party / stereo pairing—Yes
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