Dear @golferboy : As @erik_squires pointed out the subs set up is not an easy task for say the least.
Problems are not that we need a ruble filter because we need not or bass traps because we need it either.
First than all we need not one but at minimum two active subwoofers wired in true stereo fashion and crossing at around 80 hz-90 hz with the main speakers playing from 80 hz-90hz and up.
You have only one sub that if using two subs we have a hard task to integerated with only one it's a lot harder.
When two subs are well integrated no one can detect not only its position but that we are using subs in the systems other than with organ music or the Telarc 1812.
Seamless integration is the name of the game but really difiult to do it. I took over ayear to arrive " rigth there ".
In the other side we need subs with a very low THD figure. No where we can read your Thiel sub THD.
The best subs for stereo music are Velodyne with a ridiculous 0.5% on THD where the highly touted JL Audio subs has over 5% !!!!!!, maybe your Tjhiel was over that JL Audio figure and this is a deep problem too.
Here is something that I posted years ago on subs:
https://forum.audiogon.com/discussions/do-you-think-you-need-a-subwoofer/post?postid=310058#310058
Btw, JBL made an extensive scientific studies on subs using mathematic models and true and real tests where they find out that for a home enviroment and for stereo music the ideal number of subs must be four and the minimum two units. In that studies they told that as more subs in the room each one sound waves compensate in between disappearing room bass nodules and standing waves and bass excessive vibrations ( of course that the SPL in the set up must be according. ). They did not recomend the use of only one sub.
Regards and enjoy the music,
R.
Problems are not that we need a ruble filter because we need not or bass traps because we need it either.
First than all we need not one but at minimum two active subwoofers wired in true stereo fashion and crossing at around 80 hz-90 hz with the main speakers playing from 80 hz-90hz and up.
You have only one sub that if using two subs we have a hard task to integerated with only one it's a lot harder.
When two subs are well integrated no one can detect not only its position but that we are using subs in the systems other than with organ music or the Telarc 1812.
Seamless integration is the name of the game but really difiult to do it. I took over ayear to arrive " rigth there ".
In the other side we need subs with a very low THD figure. No where we can read your Thiel sub THD.
The best subs for stereo music are Velodyne with a ridiculous 0.5% on THD where the highly touted JL Audio subs has over 5% !!!!!!, maybe your Tjhiel was over that JL Audio figure and this is a deep problem too.
Here is something that I posted years ago on subs:
https://forum.audiogon.com/discussions/do-you-think-you-need-a-subwoofer/post?postid=310058#310058
Btw, JBL made an extensive scientific studies on subs using mathematic models and true and real tests where they find out that for a home enviroment and for stereo music the ideal number of subs must be four and the minimum two units. In that studies they told that as more subs in the room each one sound waves compensate in between disappearing room bass nodules and standing waves and bass excessive vibrations ( of course that the SPL in the set up must be according. ). They did not recomend the use of only one sub.
Regards and enjoy the music,
R.