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tomthiel

Responses from tomthiel

Thiel Owners
JA - if and as a small company might be created to keep Classic Thiel speakers updated, all models are in the mix. What emerges as upgrade solutions will apply to all models because the design goals and methodologies of all models share their DNA ... 
Thiel Owners
sdecker - let's not conclude that the baffle pocket is a sonic problem. In fact, the 20 gauge steel grille plate with its fabric fills that pocket to be flush with the edge curves. The inner edges are not parallel or concentric with the driver, an... 
Thiel Owners
Oops, that reply should have been to sdecker.  
Thiel Owners
Andy - my experiments show that a felt edge at the driver surround is not good. It causes its own reflection / diffraction effect. Good results have come from beveling the felt edge and by covering everything up to the surround with Ultrasuede for... 
Thiel Owners
Beetle - FWIW, my experiments have led to a 2-layer system as having sonic synergy. Not ready for prime-time, but anyone is welcome to play.1/8" F11 (or F15N) felt plus top layer of Ultrasuede LT (lightest grade 0.6mm thick). And the clencher is c... 
Thiel Owners
sdecker - thanks for the photos. On my 1.6s I put a strip of aluminum at the bottom of the pocket to support the weight of the grille. Of the various felts I have tried, the best is F11 pressed wool from Sutherland. F15N (needle punched) is nearly... 
Thiel Owners
dsper - noise floor reduction is an element of greater dynamic range, but the ear-brain is very good at inferring musical signal that "should be" buried in the noise floor. Yes, quieter is better, but it isn't everything. I suggest classic trouble... 
Thiel Owners
Beetle - I concur with your results and consider the passive parts to be important and know the work Thiel put into finding best bang for buck, always knowing that more bang could be bought. The shunts are in my experience more important than gene... 
Thiel Owners
sdecker - I don't have those models to inform any opinions. But I am messing with the CS1.5 and 1.6, which exhibit similar baffle differences. The 1.5's grille board mates with the baffle to form a flush surface with 1" radiused round-overs. The 1... 
Thiel Owners
I don't have full vs 1uF bypass comparisons, but I do have some relevant history. When Thiel developed the bypass configuration, caps were relatively primitive, and smaller value, higher spec bypass caps made a significant improvement. We develope... 
Thiel Owners
I hope to hear discussion about sdecker's observations. I have heard neither speaker, but share his thoughts. Bring it on, please. 
Thiel Owners
Fabric, even polyester made to be sonically transparent, does have multiple effects, as you say. Many Thiel models use the grille frame to fill the cabinet corner with a rounded continuation of the baffle round-over and as such that frame is an im... 
Thiel Owners
Prof - Yes, we assumed grilles to be on, which affects final frequency balance, knocking the upper octaves down perhaps 1dB. Some grille frames are also inherent to diffraction management. Some reviewers and individuals have used them bare and the... 
Thiel Owners
Andy - I'll try to fill in some blanks. And this piece of history may interest some of you.The 3-D baffle is a rather difficult item to produce one-off. The 03 had a flat baffle and the 03a added wool felt around the drivers which worked very well... 
Thiel Owners
Correction: I meant the 5 has sealed bass