Treble, how to be good?

[YSDR]

So you use metal dome now instead the ScanSpeak ring radiator ? Problem solved ?

SS dome, not ring, now a CD+horn, but this CD is essentially a dome. They sound very different.

My first concern after hearing the SS dome was the lack of "body" and power to the sound. Now this is gone.
I think that no perfect reproduction is possible, sibilant recordings sounds sibilant and that is right, it should be like that. But the difference is that I don't care a little sibilance here and there, because the whole speaker sounds so much better to me now, thanks to the new tweeter.
But I don't want to glorify it any further, because there are sure to be many who do not like this type of presentation, which is more forward but in a positive way, at least for me.

 

[diyiggy]

thanks for this input.

 

[tuantran]

I dont set a high limit freq response but i dont know what the nanodigi(dsp) , the dac (wolfson 8740) or my valve amp do above 20k . Are you sure what you are hearing above 20k isnt some kind of distortion ? I had a female cat that as soon as i pressed play on the cd player even with low volume intro songs, would run the hell out of there , i´m pretty sure she could hear to the garbage above 20k , player was a 500€ Sony cant remember the model...

You may not hear the the sounds above 20kHz but those very high frequencies which are reproduced by a tweeter will affect to the other high frequencies(below 20kHz reproduced by the same tweeter) at that moment.

 

[diyiggy]

It might make sense, we see some designs with 2 diferent tweeters
, again: aberth, Dali... or speaker with one tweeter but with high frequencies low pass with a first order filter, Zu, Dunlavy... don't care too much of frequencies above 15k or 20k....

 

[digitalthor]

This all look good with the DXT from SEAS:
http://www.seas.no/images/stories/prestige/pdfdatasheet/dxt_seas.pdf


But Heissmann says that it "widen" around 3Khz unless in a narrow(non existent) or very wide front baffle...hmmm.
Test report | Seas DXT 27TBCD / GB (H1499-06)

 

[diyiggy]

I, m not a specialist of anysort, but the little peak between 6k and 7k cycles may be harsh according your room and personal tastes,

I would prefer tje vifa peereless 26 gt, horned too.

 

[digitalthor]

yup... but it's driver related - a linear distortion, so I should be able to lower it/flatten it a bit with my filter and then everything should be ok


I'm more thinking in terms of Seas and Heissmann claiming that this is the only tweeter like this. Can that really be true?