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 from the side walls and back wall as far as practical. Just for input, try 5' behind and 3-4' to the sides.

dsper

Try moving your speakers closer together to 8 feet apart and maybe 
experiment with moving your seat closer .

Rob

Tom, when you say that you listen at spl peak of 90 dB, is that at listening position and if so, how far from the speakers or is that near field?

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' square carpet tiles tell me where I am and where the speakers are. Listening distance is generally 10' to 12' out (10' was design distance.) I find more value in terms of speaker distances from walls, rather than between them. Thiel polar pattern is optimized away from boundaries, and many problems result from early reflections. In a 15' wide space, I would rather have 6' between speakers with 4.5' to side walls, than to have 8' between and only 3.5 aside.

harrylavo
Good to see you again. Thank You for the ST-85 suggestion.
Happy Listening!