No.
where is you buy them from?
there is a lot of fake furutech stuff
out there.
on top of that not everything furutech makes is sonically good.
I have a lot of experience with furutech.
have bought some of furutech bad stuff.
and learned the hard way getting fake ones when I didn’t buy from authorized dealer.
dunno which you have been hit with.
break in after about the first 24hrs should be a positive sound slope.

