Harshness in tweeters: the price of transparency?


Hi,

I can't help notice a correlation between ultimate tweeter transparency and having to put up with harshness at loud volume levels. It can be very transparent and smooth to an appreciable volume, bit exceed that and it will go harsh if you apply the materials necessary for max transparency in those drivers.

I owned titanium dome tweeters in Avalon Eclipse speakers that ultimately caused me a case of a decade-long bout with tinnitus from the titanium dome tweeters, even when using a smooth Music Reference RM-9 tube amp.

I then owned a pair of horns with lightweight metal compression driver diaphragms. Again, unbearable harshness at loud levels where the metal "breaks up".

I now own a pair of beryllium dome tweeeters in speakers that again are volume limited before that metallic glare and harshness comes in. When I had silk domes none of that happened to me, but the details and transparency are markedly down for those drivers at all volumes.

The most transparent drivers I heard were the best tweeter horns but at the cost of harshness. They exceeded electrostatics for dynamics and transparency and detail, but at that cost. Electrostatics seem to me to be the best compromise in midrange on up detail and smoothness but with a real decline in dynamics.

Maybe diamond is the answer with its extreme rigidity and hardness. But I'm not rich enough for that yet, and probably never will be.

What's the scoop on the best tweeters out there for all of what I'm asking for here, but at a reasonable price? One possibility that intrigues me is the ceramic tweeter, but again, I don't know and those are not cheap either.

I want to play horns and cymbals loud and clear, without that bite in my ear. Soft domes aren't enough for me, at least not the ones I've heard after hearing horns and beryllium.
ktstrain
Shardorne, I agree that drums, trumpet and trombone have bite, but they're not harsh, as too many systems make them. Most well recorded trumpet is brilliant with lots of high overtones. When trombones play loud, particularly in symphonic works, they put a brr or growl in the sound with an incredible display of harmonics. Snare drums should be crisp in symphonic work, but you should be able to tell that the snares are loose or tight in pop work (on Nora Jone's stuff, for instance, the snares are usually loose).

Greatly complicating this is the huge dynamic range of these instruments often leads to compression on pop and jazz recordings. It really frustrates me when the engineer opts to let the tenor sax sound bigger than the trumpet because he can't handle the dynamic range. Trombone seldom comes off well in jazz recordings because the proximity effect of trombones and mics is about as bad as it gets. (An exception is some salsa, where they record the trumpets and 'bones from a respectful distance and let them blow their brains out). Of course, most compression adds to perceived harshness on playback.

Some examples of great brass and percussion recordings are any of the Harry James D2D recordings by Sheffield in the 1970s. If you want just one, try "King James Version". A more recent recording that shows all the overtones, brilliance and brrr of brass is "Music for Organ, Brass and Timpani" by Anthony Newman and The Graham Ashton Ensemble on the Sonoma label (see my review in the Review section of A'gon). Reference Recordings has a multitude of great wind band recordings of the Dallas Wind Symphony that really show brass in an accurate light. (All these make my dacshund howl, just like when she hears me play my trumpet. If your system doesn't make the dog howl on these recordings, somethings missing).

Many audiophiles have not heard brass and percussion live. If not, put it on your agenda. It's an ear opener.

Dave
Dave,

I could not agree more - you gave some great suggestions on music. I have the Harry James Sheffield Labs on XRCD - awesome!

In return may I suggest ToP "Soul Vaccination" LIve - What is Hip....awesome drums and persussion!

Another greatt is Chuck Magione Live at the Hollywood Bowl.

And some real fun is "Cissy Strut" cover by the "Dirty Dozen Brass Band"
Dave, Oh and lest I forget - Robbie WIlliams "Swing while your winning"" - great sound! Another one for the "demo" collection - if you love a realistic brass sound with a bit of "bite". Or Sante Fe and the Fat City Horns or Strokeland Superband or Phat Phunction
maybe you should take a vaction from cones. try a different design and perhaps use a tube amp. dipole treble vs cone treble has been discusssed many times before.

i am not a fan of cones but those i can live with are silk dome or the "old" copper dome celestion tweeter.