Driving a Thiel

Unsound,
A speaker that can have loads down to 1 ohm is a wide range to me. Most amps are rated 8 to 4 ohms. not many have a lower Ohm rating in their specs. I have listened to a few amps with Theils and found most even if rated down to 2 Ohms cannot handle them.

Hevac 1...I am not sure where you get that the Thiel CS2.4 goes down to 1ohm...in the attached link, you will see that the speaker stays between 3 and 4 ohms from 100Hz to 50KHz and drops to 2.7ohms (min dip at 600 Hz). So a high quality 4ohm rated amp with 100wpc+ will drive the Thiel 2.4 very nicely. Here is the Impedance vs Phase vs Frequency plot from Stereophile: http://www.stereophile.com/images/archivesart/theC24FIG1.jpg

Hevac1, there's a difference between low range and wide range.

Cmalak,
What amp was used and would it have been able to go down to 1 ohm?
3 to 4 ohm is what Theil states their speakers low ranges are, even the 7.2 is only 2.7 ohm min.
It is a conservative estimate at best I think.
I had Theils a few years ago and found, the more power you have the better they sounded and the lower ohms the amp can handle the lower the bass would go regardless of rating.
BTW, I am not saying that Theils are not an excellent speaker. I am just saying that a quality amp with lots of power is best and a receiver will not do them justice.

Hevac1...my point is the Thiels don't dip down to 1ohm. The Stereophile measurements on the Thiel 2.4 show the min dip of 2.7ohms at 600Hz and for most of the frequency spectrum the Thiels stayed in between 3 and 4 ohms. In any case, i agree with you that the Thiels do need high quality power and a lot of it and the OPs receiver will not drive them properly. By the way, every time i check out your system, I am impressed. Nicely done.