Where is the best location for my tweeters? I currently have my JL XR series mounted in the sail panel. My system sounds very "open/wide". I purchased a set of CDT Es-01 soft domes. CDT is telling me they must be mounted low in front of my mids in the doors, CDT HD-6's. Is this true!

Will my soundstage be too low? The JL's were a little harsh this is why I went with the cDT soft domes!