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In Reply to: RE: Help me with these horns posted by gluca on March 12, 2014 at 15:51:43
The 2001 should go out to 20K, so the response looks weird.
But then, I couldn't hear much about 15K when I tested my horns, so I didn't worry a lot about ultra-sonic tweeters.
You're got a 300hz horn and 600hz xover. My inclination is trying a different horn and super tweeter that comes in around 8-10K.
-Rod
Follow Ups:
nearfield it would and it actually does. I am considering adding a super tweeter, see my new measurement (upper post)
thanks
From what I'm seeing on the new measurements, the 2001s still look redundant. I'd sell them.
-Rod
My experience with compression drivers have encouraged me
to avoid the even slight high frequency break up.
These graphs from a Japanese site indicate that the 2001 reaches higher smoother.
In my system, the break ups are felt when the music is loud and complex.
I would try to roll off the 4001 at 2K perhaps, and gently bring in the 2001 above that.
Then by 8 or 9K it is time for a Raal or as I have chosen, EV T-350.
I also very much prefer a second order low pass on my sealed TAD 1601b.
The blending of upper bass and midrange horn is to these ears both
sensual and essential. Therefor also the quality of tubes driving the bass.
Mats
Lazy ribbons?
I never understood how one gets a very useable response with high sensitivity with the lazy ribbon as the response is a huge hill. If you low pass it up high to get HF extension then it seems you are throwing most of its useable bandwidth away.
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"When Khruschev said "we will bury you" I don't think he meant with surplus parts." zacster
Yes, lazy, I believe, that is what my friend Ben uses.
He seems satisfied, and has moved on to other projects.
Romy has a lot of information on his site.
I agree, they will soon on sale. i am gathering comments from users on RAAL lazy ribbons. I am pretty familiar with all the fostex's
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