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Site News: 16 Jan 2026
That old bug returned. Sometimes creation of new threat not going to work.  The replies still work. 
I will fix it soon.
Romy The Cat's Playback
Audio Knowledge Tree ™
Romy's "Audio Rules"
Audiophile Satire
Melquiades SET Amplifier
Macondo Acoustic System
End of Life Phonostage
Audio Demoronizator AD-1
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Random Site's Threads
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Romy the Cat's personal site dedicated to advanced audio and evolved music reproduction techniques
Thread WITH the new posts.

Legends: "Week" - last week posts, "Bold" - entered last 48 hours.
The absolutely “best” material for horns construction. 6542 
Not new 6541 
A well researched material 6541 
Sandcast horns 6541 
What about light metals? 6541 
Very liberating…. It is the way how it should be. 6541 
Pottery horns 6529 
Back to the stone age 6528 
Horn material 6495 
Re: sand horns 6056 
Not that easy 6053 
Ain't no shortcut 6053 
Very surprising comment. 6052 
Modular horns 6052 
One piece at a time 6052 
Scalability 6052 
Molds are not scalable for different flare rates. 6052 
If it where up to me… 6051 
Something like this? 6051 
Coiled horn 6048 
Discussion on diyaudio 6016 
The double-layering horn speakers. 6011 
Variable profile horn system 6002 
Just a variation of the unity horn 6002 
Not summation but continuity 6002 
It will not work 6002 
PDF link to Unity horn patent 6001 
Unity horn design 6000 
Low power SET is not a problem. 5999 
The Synergy design… and antiskating 5999 
I'm not trying to promote the Synergy 5999 
50 degrees of separation… 5999 
Not as bad as you think 5999 
The Synergy patent link is broken 5882 
Two products. 2814 
Sure a great material, so what? 2809 
Finishing. 2809 
Steel/Aluminum or polymer concrete? 2322 
Aluminum thermal expansion. 2311 
Structural flaws with polymer concrete when dealing with large and complex shapes; stress fractures and reinforcement 1337 
Massive Obstacles 1337 
Lately... 1337 
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