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Thiel Owners

Guys-

I just scored a sweet pair of CS 2.4SE loudspeakers. Anyone else currently or previously owned this model?
Owners of the CS 2.4 or CS 2.7 are free to chime in as well. Thiel are excellent w/ both tubed or solid-state gear!

Keep me posted & Happy Listening!
128x128jafant
jafant's avatar
jafant OP
19,729 posts
 

Happy Friday! All

theaudiotweak
2,801 posts
 

Tom Thiel did you or your brother Jim ever study or observe any benefit of the structural placement of driver's or port tubes as they relate to laminar flow inside of a speaker cabinet. Are there any published studies on turbulence generated by internal cabinet shape or attached support obstacles? TomD

tomthiel's avatar
tomthiel
1,677 posts
 
theaudiotweak - Tom, I don't remember ever studying port position. When we were developing our knowledge base, the opinions, even among the academic / gurus was wide and varied and often contradictory. We found that ports placed near boundaries, such as a baffle corner, exhibited more turbulence evidenced by misbehavior in its upper rollout. Best results were with the port placed as close as practical to the woofer, with no insulation between them. The biggest deal turned out to me the port terminations. Roundover entry and exit works well. Take a look at the SCS4 and its graphed performance. Two ports reduce flow to half. The external opening is a tractrix horn and the internal tube gains diameter going toward its inside terminus. I've never seen a quieter port.

Rob says that geometry was Jim's original work.

My work with Doug has further reduced turbulence by addressing surface propagation boundary effects. The improvements are significant.

theaudiotweak
2,801 posts
 

Thanks Tom.

I was thinking of the internal shape of the cabinet and bracing as well as the shape that is displaced by any port of any shape or length Those right angles of corners, braces and oddly shaped ports must generate turbulence and interference and blowback that impede airflow of the intended cone motion. Maybe I will make a clear top panel and place a smoke device inside so I can view the turbulence generated by all the contained boundaries. A passive radiator or two maybe the cleaner way to travel especially inside a poured or cast cabinet. TomD

biannuzzi22's avatar
biannuzzi22
21 posts
 

What are your thoughts on the Thiel CS7 speakers? There are a pair near me and I would sell my CS3.6 to get the CS7. Any thoughts would be greatly appreciated!

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