Originally Posted by p.las
Can someone please explaine to me what graph/targetcurve ARC (sub Cut off) showing to me?
Is it only the LFE ?
Is it LFE and sub(redirectet bas)?
I having a hard time to find out what Cut off is the right choise for my setup. Mains and surround x - over is 80hz.
For sub Cut off i have tryed 80hz and 120hz . When i set it to 80hz i some movies there i a loss of energi. If i set it to 120hz sometimes it seames to be to much bass - especialy when it is Dolby digital. But also in bd movies
Why don't you post your 3 sets of charts?
1) The charts and Targets showing what ARC picked for you (no modifications at all for ANY values in Targets).
2) The charts and Targets showing your modified 80Hz configuration.
3) The charts and Targets showing your modified 120Hz configuration.
It sounds like you are forcing ARC into doing its best to try to do something your speakers can not do. That's why (1) is important to see as well.
The Sub Calculated curve shows the expected sub response for different frequencies (regardless of source). For LFE, the content goes up to about 120Hz and so the sub response up to that is important. For STEERED bass, if you are not steering high frequency bass to the sub, then its response up there is irrelevant. What's important is the Sub response from the crossover frequency of you OTHER speakers and below.
Now you also have to deal with the fact that some source content is just not mixed all that well. For example, they may have built in an artificial bass emphasis thinking that many listeners wouldn't have good bass response. So you have to decide what your standard is here when validating the ARC results. It can't possibly make ALL content sound good. Crappy recordings are still going to sound bad. In fact they may sound worse as the mistakes in recording or application of compression or whatever become MORE noticeable.