Actually I suspected some were bad but it turns out only the two I thought were bad by ear, actually were bad. But I think it is a good idea to check them out. It's actually very tricky to do and I used REW. New tweeters are also very expensive from your Merdian dealer these days ($400.00-ish EACH).

Assuming the speakers are ok. Give it some time. Your ears will adjust. Then try going back to the treblely speakers and you'll say OMG how could I have ever listened to these things.

- Fiddler (IMHO)

If you think listening to music is fun, try learning an instrument.
HT: G61RSL, 4x5K, 5.5KHC, 2xSC6000, Transporter, HD621, Philips BDP7501 4K, Tivo, 65" LG OLED 4K C6
Computer: Foobar2000, 5K, Mojo, HiFiMan HE1000 V2