You misunderstood me and have it completely backwards. Underdog as in the size of the company and the amount of profit they make, not as in the speaker cost or performance.
Actually, I knew exactly what you meant. Size of the company, profit, long history, many professional reviews, measurements, advertisements, endorsements, etc.
I was just giving my side of the definition of "underdog".
My definition is based on actual cost to the consumers.
My definition of "underdog" is a speaker that actually costs less, yet measures superbly and sounds superbly as if they cost more.
Let's say we have company X & company Y.
Company X has been around for decades, reviewed/measured by many magazines, and folks can buy speaker X for $1K.
Company Y is up and coming, has never been reviewed /measured by the magazines, and folks have to spend $3K to buy speaker Y.
Why should anyone consider company Y the underdog when folks have to pay more money?