What really sets the CST-1's apart is the planar magnetic tweeter. You won't get any fatigue issues with these. They are detailed and yet super smooth. As Danny said in the video, the woofers are well made. These will be a revelation compared to the Pioneer speakers. Add some better amplification and maybe a servo sub kit and you will have a system you can live with for a long time.
corndog71,
Perfect advice. Thanks.
I've been able to listen to the CST-1's for about 4 hours now.
I am VERY impressed with the tweeters. I had heard ribbon tweeters in the past, and they seemed harsh. That left a dark spot in my memory.
The Pioneers will soon be donated to the in-laws, to never be thought of again.
I am VERY impressed with the detail and smoothness of the CST's, and I have not yet installed the No-Rez / Sonic-
Caps....
My biggest surprise is that I was very happy with my SVS-Ultra bookshelves.
I haven't done a direct side by side comparison between CST's and SVS's yet, as I have connected the CST-1's in a different room.
I was thinking the CST-1's would be a livable replacement while I send the SVS's to GR-Research for an upgrade, to then use the CST's to replace the Pioneers, but now I am worried that the the CST's will relegate my beautiful SVS's to the back burner.
Down the rabbit hole I go....

Maybe the SVS's will be contenders for a second fight after GR-Upgrade.