Has anyone done any ARC testing to restrict the highest frequency of the default correction range to a lower frequency (e.g. 500Hz)?
I have noted in research by both Dr. Toole and Dr. Olive related to room correction/equalisation and well designed/engineered speakers (like Paradigm/Revel etc. who use extensive use of anechoic chambers to properly evaluate their speakers) their expert opinions on where to properly apply equalisation.
I have just ordered an MRX 500 and hopefully my store in Ottawa will get it in soon.. so I am busy doing technical research on ARC in order to maximise its potential application within my listening area.
In the Dr. Olive Audio Musings
blog he has a comment:
Finally, if you own Revel Salons, they don't need any equalization except below 300 Hz where the room dominates what you hear
If you own good loudspeakers, you should focus on correcting the low frequency acoustical interactions between the loudspeaker and room.
In Dr. Toole's Science in the service of art
paper (page 25) he states:
There are some things equalization can and cannot do:
1. It can help with some, but not all, loudspeaker problems. With comprehensive labo- ratory measurements (like Figs. 9–12) to work from, equalization can be used to make a good speaker sound better. Once a loudspeaker is in a normal room, we lose the ability to measure it in ways that allow us to be totally analytical. Without knowing what is wrong, we don’t know whether equalization is the right solution for the problem. For example, equalization can change frequency response, but it cannot change directivity, yet together they determine the basic shape of a room curve. Poor directivity control, as a function of frequency, can only be cured by using a better loudspeaker. In general, if the speaker has been competently designed, it should probably be left alone at frequencies above about 300 to 500 Hz, whatever the room-curves look like. Since all manufacturers claim to be compe- tent, consumers have a problem. Automated equalization systems that are not dedicated to specific loudspeakers have a problem. They have no special “inside information” about the loudspeakers, so those that make adjustments over the whole audio frequency range are, as they say in ’Vegas, rolling the dice. Caveat Emptor.
So my question is (and I will definitely test my hypothesis using the default and my own high limit(s) when I get my MRX500) would ARC react better if I restrict the high frequency default correction range to say 500Hz as opposed to the current 5kHz? Curious as to any testing/thoughts/opinion.
P.S. I posted this in the MRX thread as ARC has less processing in the MRX models compared to the Statement series.