It took you guys long enough to find the patent. 😁
I am slightly dubious about the Blue fuses. Usually these options that lower noise throw out the baby with the bath water. Yes, you get a lower noise floor, but it's usually achieved by removing the low level high frequencies. If you want that pinpoint imaging, and in-room sound, then that's fine. Given OP's description of the Blue fuse, that sounds like the case.
I'm left unsure of whether to keep my order of the sale priced Black fuse, replace it with a Blue, or get both. It's too bad they won't replace the sale price Black with a Blue for the $20 extra.
I am slightly dubious about the Blue fuses. Usually these options that lower noise throw out the baby with the bath water. Yes, you get a lower noise floor, but it's usually achieved by removing the low level high frequencies. If you want that pinpoint imaging, and in-room sound, then that's fine. Given OP's description of the Blue fuse, that sounds like the case.
I'm left unsure of whether to keep my order of the sale priced Black fuse, replace it with a Blue, or get both. It's too bad they won't replace the sale price Black with a Blue for the $20 extra.