tomthiel

Responses from tomthiel

Thiel Owners
Regarding driver wiring: there is a simple trick if you have a multimeter. Get access to the driver terminals, feed a signal to the speaker. Measure the AC voltages at the terminals. The woofer should be the highest, midrange much less and tweeter... 
Thiel Owners
OK, not petty. I'll look into it. 
Thiel Owners
Unsound - thank you very much for your links to PS reviews. I will certainly wait until I read reviews on their upcoming PerfectWave SACD player. Furthermore, I have now read John Atkinson's technical review in AudioScience of the Stellar GainCell... 
Thiel Owners
jafant - I bought the SCD-1 because it is an iconic product, it had been Thiel Audio's, and it had been upgraded. The few discs I heard on it were wonderous. I'll keep it until I get PS Audio's new PerfectWave player early 2021 and ascertain it do... 
Thiel Owners
unsound - the rubber pads were to add mass to lower the resonance frequency. Turned out that the center plugs did a better job of that. There were also some motor improvements. That's when Jim was getting his legs with FEA for motor geometry and a... 
Thiel Owners
And he used the Goertz flat wire, which has the lowest characteristic impedance, which is a requirement for very low impedance speaker loads.  
Thiel Owners
Dspr - CS5s are a tough nut to crack. Their impedance drops to 2.5 ohms at 150Hz and keeps dropping to 1.5Hz by 20Hz, and lower at 10Hz. It devastates most amps. I don't remember for sure whether the 'improved' woofers raised that impedance a litt... 
Thiel Owners
Waveguides are attached with a 3M plastic adhesive and usually come off readily. I can't recommend any tricks. The rubber goo surround fix is good. The original goo was silicone.  
Thiel Owners
bonedog - you have the right driver. I'm working from memory of 35 years ago and I have 2 originals here. Light gray surround matches paper cone color. 13M Thiel-8521.  
Thiel Owners
Thieliste - I don't have 3.7s, but can speak in general to your listening angle question. I believe the biggest factor is the room. Jim designed all the floor-stranders to be fired straight ahead if the room can support that. Their cross points ar... 
Thiel Owners
JAFant - Nothing very fancy, but chosen for neutrality and high value.I did indeed buy the Thiel Audio Sony ES SCD-1 at auction. It played a few discs beautifully and then failed. Long story shortened, I want to sell it with its upgraded internals... 
Thiel Owners
bonedog - note that the original CS3.5 midrange does not have a foam surround, but rather a continuation of the cone paper infused with silicone. Be careful what you're using for a reference. 
Thiel Owners
Rules - that's listening position. Peak capture might register 100dB, unless I'm driving hard to cause distress on purpose.My listening is almost entirely for data-gathering. My chair is on wheels and my spl meter is velcroed to my thigh. 2' squar... 
Thiel Owners
dspr - Rob at Coherent Source Service could check your serial numbers for whether yours were upgraded to the "i" status. The difference was upgraded woofers and possibly an XO tweak to compensate. For the room bit, I recommend moving them away fro... 
Thiel Owners
To clarify for those recently joining the discussion, my observations are based on an unusual room that is effectively large since the listening room has semi-porous walls within a 12Kcubic’ space, in a 30Kcubic’ building without many partitions. ...