Presently in use in my main rig is TWL 8+ and 10+, and 3 Signal digital references.
Also have a Cullen Crossover and Signal magic.
Didn’t really care for the Signal magic and the Cullen was very good but a little bass heavy for my application on my then Had Inspire.
The TWL’s add a little warmth to the presentation, but if you’re looking for neutrality the Signal digital reference is the best choice. The problem with them is they’re stiff as a dead frozen snake.
No experience with the Obsession.