Zilch's image posted below... this post taken from Storm's Altec +EV thread.
Below that I have posted a plot of three T-35s. The blue and green T-35s were taken from my Klipsch Belle clones and have been babied their whole lives so I'd suggest their response is likely as new... the
red plot is from a K-horn... I have no idea how hard it may have been driven.
I'd say that for a bunch of vintage drivers these are following their original specified curve better than most that we see here and for the record, I'd say these are not the terrible tweeters that Maron and Zilch seem to think they are. I guarantee they produce higher frequencies than many here can actually hear.
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