My HT tweeters are all V4s except for my VP160. That is being remedied now by my new VP160 that is being built as we speak in HG Rosewood (Black Friday Sale).

When I changed to the V4s throughout my system I can't say that I heard much of a difference, if any, in my room. From what I've read here, the V4 is another very subtle improvement. My ears bear that out.

My upgrades came from my perceived need to match finishes, not tweeters...

TAM