Hi Rebbi;
My last pair of De Capo's were made in 2010, and had the new tweeters, brass screws, internal wiring, cryo etc, but there was no mention of the "acoustic lens" you mentioned. I am not familiar with it, and will have to look into it.
The newer 2010 ones I had were less bright/forward in the tweeters than the standard "i" versions. I would not call them a forward sounding speaker in general, but the older ones certainly would let you know when you put on a harsh or edgy sounding recording. The de Capo's do not roll off the highs or sound warm or overly lush like some speakers. They will bring out all the flaws in your amps or upstream components.
My last pair of De Capo's were made in 2010, and had the new tweeters, brass screws, internal wiring, cryo etc, but there was no mention of the "acoustic lens" you mentioned. I am not familiar with it, and will have to look into it.
The newer 2010 ones I had were less bright/forward in the tweeters than the standard "i" versions. I would not call them a forward sounding speaker in general, but the older ones certainly would let you know when you put on a harsh or edgy sounding recording. The de Capo's do not roll off the highs or sound warm or overly lush like some speakers. They will bring out all the flaws in your amps or upstream components.