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  3. Clear Sound 400 vs HT-SB121

Alphatronics Clear Sound 400 vs Sharp HT-SB121

What Clear Sound 400 does better (0) and where HT-SB121 wins (1) — every spec side by side.

Alphatronics Clear Sound 400
Alphatronics · 2025Clear Sound 400
3.7Score
0 advantages
Higher score
vs
Sharp HT-SB121
Sharp · 2025HT-SB121
1 advantage≈ $75

Why is Clear Sound 400 better than HT-SB121?

Clear Sound 400 has no measurable advantages in this pair.

Why is HT-SB121 better than Clear Sound 400?

  1. Bluetooth version5 vs 5.3+6%
Specifications

Side by side

Sound
Output power30 W—
Speaker channels—2.0
Channel count—2
SubwooferNoneNone
Lowest frequency50 Hz—
Highest frequency18,000 Hz—
Adjustable equaliserYes—
Stereo—Yes
Battery & charging
Mains poweredYesYes
Battery powered (portable)NoNo
Connectivity
WirelessYesYes
Bluetooth version55.3
3.5 mm jack / AUXYes—
HDMI eARC / ARCYesYes
HDMI inputs1—
Optical inputYes—
Design & build
Weight1,100 g—
Width404 mm—
ColoursBlackBlack
Features
Placement—an der Wand
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