48
tube amplifier
Skip itPrices mostly outside the sweet spot ($16.11–$1556.36) — this niche doesn't clear our bar today.
Competition
Great29%top-5 click share — an open shelf
Review moat
Great297.59avg incumbent reviews — the moat a new listing must climb
Market size
Good$748K$748K/yr · 455K searches
Brand share
Good63%top-5 brand share — brands hold most of the demand
Quality gap
Good4.4★avg incumbent rating — lower means beatable quality
Avg price
Okay$298.59avg listing price — sweet spot $15–$100
Growth
Bad-12.6%90-day search growth — must beat 0% to launch
Returns
Bad7.4%return rate — above 5% kills the launch gate
Conversion
Bad0.5%search→purchase rate — share of searches ending in a sale
Price range
Bad$16.11–$1556.36cheapest to priciest tracked listing — scored on the share inside $15–$100