IC, I’ve not heard the Synchrony 2B. Since the they’re both bookshelves they’re probably fairly close in presentation. The edge I still think would go towards the Synchrony, but is the difference worth the cost to you? You can fine some reviews with Google searches
Stereophile reviewed the Imagine B. Absolute Sound reviewed the Synchrony 2 and 2B. HiFi News reviewed the Synchrony 2B
Stereophile reviewed the Imagine B. Absolute Sound reviewed the Synchrony 2 and 2B. HiFi News reviewed the Synchrony 2B