I’ve owned the LSi 9 a long time ago, then owned Tyler Talyo Ref monitors and Linbrook Signature monitors.
The LSi 9 were decent (enjoyable, even), but I could tell even at the time that they were great for HT speakers and not quite to true "audiophile" level for 2ch (they were at least better at 2ch than the LSi 15, which were a big mistake for me to buy).
The Taylo Ref monitors were actually really great sounding except for the fact they lacked satisfying bass -- but then what do you expect from a monitor there? Other than bass, these were a very big step up from the LSi 9.
I then bought Linbrook Sig monitors, expecting to get the Taylo sound with more bass, and boy was I disappointed. More bass yes, but now a murky, wooly sound that failed to provide much musical satisfaction at all. Borderline awful.
Since the Halo 4 are priced well below the old Taylo monitor, I’d be afraid you’d be getting a side-grade *at best*, and perhaps even a move straight backwards. Furthermore, used Tylers can be amazingly tricky to resell -- especially in the current market; be very wary of any seemingly "great" deals on these. If you want to move up, it’s best to choose a set from a long-established company with a great reputation towards 2ch/audiophile speakers -- and really try to get an audition first!
The LSi 9 were decent (enjoyable, even), but I could tell even at the time that they were great for HT speakers and not quite to true "audiophile" level for 2ch (they were at least better at 2ch than the LSi 15, which were a big mistake for me to buy).
The Taylo Ref monitors were actually really great sounding except for the fact they lacked satisfying bass -- but then what do you expect from a monitor there? Other than bass, these were a very big step up from the LSi 9.
I then bought Linbrook Sig monitors, expecting to get the Taylo sound with more bass, and boy was I disappointed. More bass yes, but now a murky, wooly sound that failed to provide much musical satisfaction at all. Borderline awful.
Since the Halo 4 are priced well below the old Taylo monitor, I’d be afraid you’d be getting a side-grade *at best*, and perhaps even a move straight backwards. Furthermore, used Tylers can be amazingly tricky to resell -- especially in the current market; be very wary of any seemingly "great" deals on these. If you want to move up, it’s best to choose a set from a long-established company with a great reputation towards 2ch/audiophile speakers -- and really try to get an audition first!