Marshall - Emberton III vs Logitech - MEGABOOM 4

The Emberton III is the clear pick on raw spec strength, leading by 13.3 points on the Mars Score. The margin is wide enough that the underdog only makes sense if its individual strengths line up with what you specifically need.

Pick the Emberton III if you care most about battery and output power. The biggest gaps in its favor are battery, output power.

The MEGABOOM 4 similarly doesn't carry a headline advantage on the popular specs — look at the full table for category-specific deltas.

Both ship with comparable water resistance, low-end response, stereo pairing, so those specs don't separate the two — focus on the differences below.

Bottom line: the Emberton III is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.