design ? i say half copy
performance ? how to achieve with incomplete board?
quality? good material? i don't think so
price? its not very cheap also. competing with altec creative and edifier.
research and development? i dont even see something special they came up with.

even the Sonic Gear Armageddon A5 is also using "incomplete" board.
claimed to have 75W RMS while the transformer only supply max 65VA and i doubt it has 100% efficiency.

source

no offense guys... but i'd rather have something complete. so no wonder they have high failure rate...