Quote Originally Posted by NelNel
Thx you. It is very clear

Before your reply, tentatively I would like to try on Thiel CS 1.6. But it appears to be not Amp friendly. And unless I can audition the speaker with my perferred Amp at the same time, this will be big gamble to take it.
What's your preferred amp? The 1.6 drops no lower than 3 ohms which is perhaps a tad challenging, but not likely to devour most quality ss amps. If you're running a SET, you're probably right and I'd look elsewhere. However, a good high current amp will be more than able to push the Thiel.