IMHO Sbank has it right but I'd re-state it differently.
The Merlin is more revealing, slightly leaner in the mid bass, and more
extended in the deep bass.
The Harbeth is warmer and more forgiving.
I own Merlins and have auditioned the Harbeths extensively. IMHO, both are
excellent in their own way, but their ways are sufficiently different that a
choice should be straightforward on audition. I prefer the Merlin, but from
your list of issues my guess is you might go the other way.
Good Luck
Marty
The Merlin is more revealing, slightly leaner in the mid bass, and more
extended in the deep bass.
The Harbeth is warmer and more forgiving.
I own Merlins and have auditioned the Harbeths extensively. IMHO, both are
excellent in their own way, but their ways are sufficiently different that a
choice should be straightforward on audition. I prefer the Merlin, but from
your list of issues my guess is you might go the other way.
Good Luck
Marty