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Matias's picture
Last seen: 4 months 2 weeks ago
Joined: Nov 21 2007 - 6:55am
Thiel CS3.7 sibilance


Hi I got a new pair of Thiel CS 3.7 they have been burning in for 100+ hours by now. I use them with an integrated solid state amp (class AB with 200W in 8 ohms and high current) and also an upsampling DAC (discrete class A amp).


The problem is that now I have lots of sibilance, S's are sharp and loud all over. I tried 4 different XLR interconnects, changed power cables, AC conditioning, less toe in, grill on, fuses... They all change the sound balance, character and soundstage more or less, but the S's are still there no matter what.


My old bookshelfs have pure ribbon tweeters and sounded great in the same room, so I don't think the room would be influencing now. I also don't think burning in 300, 500 or 1000 hours will change this signature (I will find out).


Do other Thiel owners suffered with this problem? Any solutions found?



tom collins
tom collins's picture
Last seen: 5 years 1 month ago
Joined: Apr 3 2007 - 11:54am
break in

from what i have read and heard with these speakers, you might want to revise your break in to around 400 hours.  still, to my ears, every thiel i have heard has sounded overemphasised in the upper ranges.

jackfish's picture
Last seen: 4 years 1 week ago
Joined: Dec 19 2005 - 2:42pm
Consider broadband absorption panels for the

first reflection points at the sidewalls and ceiling.

JoeE SP9
JoeE SP9's picture
Last seen: 19 hours 51 min ago
Joined: Oct 31 2005 - 6:02pm

Try a tube amplifier!

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