Originally Posted by Roger Dressler
His graphs show that ARC is indeed not going much beyond the 5 kHz limit. The red line stops around 7 kHz, which is where the uncorrected curve intersects the target curve. To cut off any sooner could impose a discontinuity into the response. The green response above that is simply the native response of his system, as interpreted by the ARC mic.
You have a RealRTA plot showing this dropoff >5 kHz, or is it the ARC plot showing that? If the ARC curve, that's the nature of ARC mics. Not to worry, ARC is not touching your response >5 kHz.
I must be coming a rock head in my old age but I see this completely different.
Look at Marke001's graphs and only at the left front and right front speaker graphs.
The red line is his system's measured response by ARC
The dotted line is what ARC is going to try and achieve as a result of ARC's correction to the systems response
The green line is the result of ARC applying correction..
When I look at the two graphs provided by Marke001 I see the green response curve going past 10k even though the system is supposed to only respond to 5k.
Now, no one is saying the tweeters are not capable of having good flat output past 10k or eve n 20k.
But ARC has been set to stop measuring and responding at 5k.
My argument is to look at any number of graphs on this forum with just as capable systems and never have i seen an Arc graph go past 5k when set up at 5k without a rapid fall off in the measured response by ARC
I presented my response curve as an example of a system without ARC applied, that easily goes smoothly past 10k and yet after I apply ARC just like every oyhjer graph presented here with a 5k setup, the response by ARC drops off rapidly after 5kEdited by thestewman - 1/3/14 at 4:51pm