48
4 inch marine speakers
Skip itA small market ($34K/yr) — this niche doesn't clear our bar today.
Avg price
Great$48.08avg listing price — sweet spot $15–$100
Growth
Great+76.8%90-day search growth — must beat 0% to launch
Price range
Great$19.70–$121.40cheapest to priciest tracked listing — scored on the share inside $15–$100
Review moat
Good773.42avg incumbent reviews — the moat a new listing must climb
Competition
Good52%top-5 click share — leaders hold, buyers still browse
Quality gap
Good4.4★avg incumbent rating — lower means beatable quality
Returns
Okay3.9%return rate — above 5% kills the launch gate
Brand share
Okay88%top-5 brand share — brands hold most of the demand
Conversion
Okay2.0%search→purchase rate — share of searches ending in a sale
Market size
Bad$34K$34K/yr · 35K searches