Originally Posted by Roger Dressler
Do me a favor. Go to the ARC targets menu for one Profile and set room gain to 0.0. Even when you set ARC to stop at 200 to 500 Hz, that's still part of the equation. Upload then compare. What do you hear?
I hear AWESOMENESS!!!! ....Boom!!!
By default, ARC was setting 6dB room gain, I've only had the unit for a short while and hadn't played with that parameter. So I set it to 0dB, which as you know ditched the low-freq boost on all channels including fronts. The sound stage opened up with all the dynamics and presence I experienced with ARC off.
The only (temporary) downside, was the lack of bass/slam/kick. To fix this I knocked the sub output back up 6dB to makeup for the room gain decrease as I see others have done. Bingo!
Originally Posted by Bob Pariseau
You can't properly compare simply by turning ARC on and off after uploading your ARC solution. That's because the ARC solution uses higher speaker levels which are then attenuated by the room response corrections to get things back to the the intended level. When you turn ARC off, the higher speaker levels are still in the settings, but the room response corrections are no longer being applied.
Thus ARC OFF is a bit louder. And louder sounds better.
Indeed there was a bit of this happening too, about 4dB variation. After changing to the 0dB room gain setting mentioned above, I switched between ARC on/off by creating an identical profile with boosted levels for ARC-ON and created a second input to toggle between the two.
Toggling between the two, I can now honestly say that I prefer ARC on, it seems to have all the presence I enjoyed with ARC off and in addition it sounds more 3-dimensional, with better staging and clarity, less smearing. AND it has the super-tight bass integration!
Originally Posted by JOSOSA
Tried 0 gain, OMG why does that sound sooooo good vs 3 db gain ? ? ?
It removes the "boomyness" and I found definition and balance, just have to raise sub by 3db
I know right?
So, I'm really curious to know how this seems to have made such a difference. Here's my two guesses/theories in order of belief:
1. the room gain applied to the fronts created a boomyness, by increasing low frequencies in locations that are not optimal (as opposed to location of subs). Big muddy bass ruins everything else and can cause some kinda psych-acoustic interferance
2. Boosting lower freqs too much caused the front speakers to over-work on lower range, which can mess-up the drivers mid-to-upper range performance?
What do you guys reckon? ...feel free to de-bunk my theories and offer other explanations if any 👍
And thanks heaps for the tips guys!... I'm a very happy camper right now!