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  3. Clear Sound 400 vs Poseidon M60 Boom

Alphatronics Clear Sound 400 vs ULTIMEA Poseidon M60 Boom

What Clear Sound 400 does better (0) and where Poseidon M60 Boom wins (2) — every spec side by side.

Alphatronics Clear Sound 400
Alphatronics · 2025Clear Sound 400
3.7Score
0 advantages
Higher score
vs
ULTIMEA Poseidon M60 Boom
ULTIMEA · 2025Poseidon M60 Boom
2 advantages≈ $170
2.5Sound7.7

Why is Clear Sound 400 better than Poseidon M60 Boom?

Clear Sound 400 has no measurable advantages in this pair.

Why is Poseidon M60 Boom better than Clear Sound 400?

  1. SubwooferNone vs Wireless subwoofer included
  2. Bluetooth version5 vs 5.4+8%
Specifications

Side by side

Sound
Output power30 W—
Speaker channels—5.1
Channel count—5.1
SubwooferNoneWireless subwoofer included
Lowest frequency50 Hz—
Highest frequency18,000 Hz—
Dolby Atmos—Yes
Adjustable equaliserYesYes
Stereo—Yes
Battery & charging
Mains poweredYesYes
Battery powered (portable)NoNo
Connectivity
WirelessYesYes
Bluetooth version55.4
3.5 mm jack / AUXYesYes
HDMI eARC / ARCYes—
HDMI inputs1—
Optical inputYes—
Design & build
Weight1,100 g—
Width404 mm—
ColoursBlackBlack
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