Is Reactor 600 high end?

[ogs]

You are right, but AL is somewhat tricky (time consuming) to use for fine tuning. PEQ in Roon is much more direct and almost real time... AL behaves differently in the bass with TTD enabled compared to pure amplitude correction. There is better correlation between the target curve and what you hear when doing amplitude correction only. With TTD (I always use TTD) I prefer to just use a 'sensible' target curve and do bass fine tuning with PEQ.