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  3. Clear Sound 400 vs Helium 312BT

Alphatronics Clear Sound 400 vs Genesis Helium 312BT

What Clear Sound 400 does better (1) and where Helium 312BT wins (3) — every spec side by side.

Alphatronics Clear Sound 400
Alphatronics · 2025Clear Sound 400
3.7Score
1 advantage
Higher score
vs
Genesis Helium 312BT
Genesis · 2025Helium 312BT
3 advantages≈ $25

Why is Clear Sound 400 better than Helium 312BT?

  1. Lowest frequency50 Hz vs 100 Hz2×

Why is Helium 312BT better than Clear Sound 400?

  1. SubwooferNone vs Wireless subwoofer included
  2. Bluetooth version5 vs 5.2+4%
  3. Highest frequency18,000 Hz vs 20,000 Hz+11%
Specifications

Side by side

Sound
Output power30 W—
Speaker channels—2.0
Channel count—2
SubwooferNoneWireless subwoofer included
Lowest frequency50 Hz100 Hz
Highest frequency18,000 Hz20,000 Hz
Adjustable equaliserYes—
Stereo—Yes
Battery & charging
Mains poweredYesYes
Battery powered (portable)NoNo
Connectivity
WirelessYesYes
Bluetooth version55.2
3.5 mm jack / AUXYes—
HDMI eARC / ARCYes—
HDMI inputs1—
Optical inputYes—
Design & build
Weight1,100 g—
Width404 mm—
ColoursBlackBlack
Features
Placement—vor dem Fernseher
To compare: 0up to 4 models
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