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jbl marine speakers
Skip itBrand-locked demand (top 5 brands take 98% of clicks) — this niche doesn't clear our bar today.
Review moat
Great213.04avg incumbent reviews — the moat a new listing must climb
Growth
Great+76.2%90-day search growth — must beat 0% to launch
Competition
Good54%top-5 click share — leaders hold, buyers still browse
Returns
Okay3.2%return rate — above 5% kills the launch gate
Avg price
Okay$252.26avg listing price — sweet spot $15–$100
Quality gap
Bad4.6★avg incumbent rating — lower means beatable quality
Market size
Bad$51K$51K/yr · 37K searches
Conversion
Bad0.5%search→purchase rate — share of searches ending in a sale
Price range
Bad$31.87–$1000.00cheapest to priciest tracked listing — scored on the share inside $15–$100
Brand share
Bad98%top-5 brand share — brand-locked demand