Originally Posted by misko72
I couldnt find what slope is on oppo,but when its true that it has 12db,i am sure this is the problem i am experiencing.
Why would they use 12db slope,is beyond me.In low pass slope should be steeper,am i right?
In car audio nobody ever would use
12db for low fq.I had amps and preamps in my car,where i was able to set low pass slope,always ended up with 24db and the difference was exactly i am experiencing right now,with oppo player.
Maybe it can be 'fixed' in future with software update?Probably more people must demand it,which i really doubt.
You are talking about the slope of the Crossover, right? 12dB per octave is perfectly normal. You definitely do *NOT* want a brick wall filter -- i.e., a much higher slope -- as that leads to artifacts.
If you find you prefer a higher slope (as set in your other gear), that suggests either your main speakers are not really good down that low -- i.e., you should really be using a higher value for your Crossover frequency -- or you have room response problems with the bass output of your main speakers when they are allowed to output bass that low -- i.e., the physical location of the Sub is better for coupling those bass frequencies to the room than the physical location of the main speakers.
The only place where high slope filters are appropriate is for very low frequency bass protection. I.e., keeping your Sub from trying to reproduce bass, say, *BELOW* 16Hz. There 24dB/octave is not uncommon.
Are you still trying to use a 50Hz Crossover setting in the OPPO? I really don't recommend that.