tomthiel
Responses from tomthiel
| Thiel Owners Yes, I would say the coax feed cap upgrade removes a slight coarse veil over the mid- upper frequencies. The MRA-12 Mills resistors add some ease. The drivers / cabinet have enough inherent quality to support considerably better XO parts. Keep up ... | |
| Thiel Owners harry - regarding 2 vs 3. The target frequency response is identical, including the upper bass x midrange. I suspect the difference you hear is based on power response in the room. The 3s go deeper and move more air. The 3s have a larger diameter ... | |
| Thiel Owners holco - you are welcome to share which capacitors you changed and why and your specific listening experience. | |
| Thiel Owners silva - I believe that you made improvements. I am merely addressing the physics of the cause. I suggest googling "speaker enclosure resonances" or somesuch and see what you can learn.It's quite complex - resonances couple when harmonically linked... | |
| Thiel Owners unsound - What you envision could be done with the SCS, but not the PowerPoint. The SCS has the same driver and XO, but its cabinet is made for 3D space.The PowerPoint's genius (patented -?-) is its 45° wave launch from a known, unobstructed plane... | |
| Thiel Owners Good work. I should comment that lowering the RF in itself hurts things. However, it is likely that you also decreased the resonances for net gain in quieting the cabinet. | |
| Thiel Owners I recommend you all find a way to audition a pair of PowerPoints on the ceiling at "normal" listening geometry with subwoofers configured on the floor beneath them driven by your hi-fi amp. That's my studio setup. I expect you to fall in love. | |
| Thiel Owners Regarding theater: I know a universe where the audio dimension of theater adds a profoundly deeper and more complete involvement to the video. As coherence enters that total immersion world, serious magic happens. (Little known factoid: Thiel work... | |
| Thiel Owners Great ideas, guys. jon - I highly recommend checking out USG Hydrostone instead of concrete, for reasons I've previously enumerated. rule - someone has to pick up the ball, I'll do my part.andy - good ideas. I suggest that Thiel's present driver t... | |
| Thiel Owners Your confusion may come from the SE availability. Years ago, Jim developed a Signature Edition for the CS2.4. Most of the upgrades were cabinet related, but there was and is a crossover upgrade which replaces the 2 feed caps (bypassed with styrene... | |
| Thiel Owners andy - I am way behind schedule due to competing priorities. No one has received anything. But I have all the parts and am making the new boards for beetle to populate. Not yet, pretty soon you'll be getting some early reports. | |
| Thiel Owners Note that any replacement driver would necessitate crossover changes since all parameters affect the various resonances which are compensated and corrected in the XO. Also, that driver had some level of Thiel proprietary magnet geometry and so for... | |
| Thiel Owners rule - I would need some prompts to address the lack of braces. The 3.5 development dates from around 1987 - I am unclear exactly when. That's after our first CNC which is when the pierced shelf braces became feasible. I remember front-to-back lum... | |
| Thiel Owners As I mentioned, I am searching for a repair solution. A schematic would help greatly if anyone has one. | |
| Thiel Owners Removing portability opens many options. There's a whole world to explore. Study before you play. Don't be fooled by heavy and hard. Concrete can ring like a bell. Etc. Etc. Etc.In the metals I would look at magnesium. Similar mass to stiffness as... |