Gang,
Listen, I love DIY and making my own speakers. At the same time, I recognize that even if I made fantastic speakers there's absolutely no way I'd be able to take them to market. Making and marketing and shipping and supporting speakers is expensive AF and requires a level of masochism and mental toughness I believe few of us have.
The markup is BIG for a reason.
As I posted recently, I broke a Monitor Audio speaker and needed service. It was outstanding, and not possible selling for near parts cost.
Best,
E

