Why do you wrongly assume that all ribbons used in loudspeakers are Intentionally set up by designer to have more output over 3k? You said [i suppose i may be more sensitive to frequencies exceeding 3000 hz than many on these forums, which may be at odds with others.] So you have hearing damage above 3k would explain much. Or are you insinuating that your hearing is just better above 3k
than other members who disagree?
than other members who disagree?