tomthiel

Responses from tomthiel

Thiel Owners
Rob,Is your wire a single twisted pair of 17.5 per leg? 
Thiel Owners
It's probably caulk - I don't know what kind. In my time we used acrylic latex painter's caulk with good results, and sometimes hotmelt adhesive to build a mound. But, sealing was always be a big hassle; hotmelt and caulk are both permanent, which... 
Thiel Owners
Rob - I will be most interested in your 15.5 to 17.5 gauge comparison.  
Thiel Owners
Rob,,Sealing between the chambers is important for impulse integrity. If open, the woofer air pressure yanks the midrange around - not good. You can temporarily seal well enough with Mortite or bowl putty. When I came to New Hampshire in 1996, we ... 
Thiel Owners
Rob - I saw and heard the first pair of 2.7s at the factory in 2012. I believe there was an angled dividing board between the lower (woofer) and upper (midrange) chambers.I should add a thought to the insulation riddle. Many people assume that woo... 
Thiel Owners
For the record, wool acts quite differently than fiberglas, as does polyester fiberfill or spun mineral wool, especially in transition to the deep bass. Final placement and voicing of damping was always made by results. Listen to it, and if you ha... 
Thiel Owners
I see.  Small trace sounds suspect. I've exhausted my clues. I have a PP XO schematic - same drivers, if that might help. Try Rob. 
Thiel Owners
Jon - your pic shows PC boards which are all too easy to burn.PM sent 
Thiel Owners
Jon - I haven't had your experience, but I can comment.Broken leads are usually caused by excessive excursion.Your 2 volts AC at the tweeter and woofer with a 60Hz test signal is improper. Tweeter should be near zero.Caps and resistors usually blo... 
Thiel Owners
FYI: Thiel stained bare wood; if stained, the clearcoats would be on top of stain. If natural, the clear sealer and topcoats would be on bare wood. Refinishing is serious business. Are you experienced? You might consider some form of over-coat, li... 
Thiel Owners
Jhouse - your speakers certainly do look altered, that's not a Thiel factory finish. The veneer looks to be Mahogany, which has a natural color in the salmon spectrum, which is generally stained some shade of red-brown. It looks like yours have be... 
Thiel Owners
George,It's been my pleasure. For the record, I concur that the 2.7 is the mature work of masters of the craft, what tool-heads call ' a clean machine '. Any performance gains will come with significant expenditure. I'm happy to have you enjoying ... 
Thiel Owners
Prof - Paul Hales is very talented and precisely educated. He got his degree in mechanical and electrical engineering for the purpose of designing loudspeakers. Rossw - To me, the 3 / 3.5 seems the quintessential Jim Thiel design, before he had to... 
Thiel Owners
Guys - thanks for the grace for my rant. The marble baffle was a work of art as it stood. The concrete of the 6 and 7 has its own story. My last project in the mid 90s was developing a lower cost baffle for the 6 and 7, which was a Hydrostone prod... 
Thiel Owners
Unsound - agreed on 40Hz, and even 20Hz at moderate levels in a moderate room with moderate music. I like the 20Hz 'sound' better than 40Hz, possibly because of the relative lack of low end phase shift, to which I am sensitive. The bass response e...