Old speakers, new tweeters are a bit too sharp

[pd44]

My old 1986 speakers, home made by HiFi Stereo, Sale, Manchester, are still doing pretty well. I replaced the 3.5" tweeters a couple of years ago, but they're sounding a bit sharp.

Has anyone any tips how to make them less sharp?

 

[nopiano]

Are you pulling our legs? Those don’t even look like tweeters, but mid-range drivers.

But if you’re serious, what was there previously, and how did you ensure they matched the crossover?

Fitting thick grille cloth will make them less ‘sharp’. Drape the duvet they’re lying on in your picture over the front as an experiment. Better?