its really an industry thing. memphis used to be called fultron, owned by robert fuller, and based in memphis. their product was just about the same as pyramid or boss, and nobody used it, except the real cheap cheap people.
oh, around 8 years ago they revamped their lineup, called themselves memphis, and got into the higher-end audio market.
only problem was, everyone in the industry knew they were really fultron, and waited to see what the product was like and how stable the company would be, before endorsing their product fully.
theyve stuck with it. mempho is good shit.