Just the Linbrook Sig Monitors by themselves are very good, displaying greater articulation and detail than my Norh Mini-9 speakers which use SS Revelator midbass and 9800 tweeter. However, I found that adding the bass modules gives greater image depth, more articulate bass (not just deeper), greater mid-range detail and the system just sounds more effortless with a bigger soundstage.
I've found that the Linbrooks easily show up any change in your system for better or worse.
I've found that the Linbrooks easily show up any change in your system for better or worse.