Smeyers, I find that the corrected response does have a hollow sound. I think the problem is due to the extended flat response at the top end that does not have a balancing increase at the bottom end. One of the filters I made slopes the top end response to closely approximate the curves depicted in Stereophiles more favorable speaker reviews and measurements. I left the rest of the spectrum untouched. I think this curve sounds better than the totally flat curve and does not have the hollow sound. Most of the highly rated speakers have a decreasing "in room" response at the top. Those that do not, have an elevated/exaggerated bottom end to compensate for the extension at the top.
I used the DRC205 quite a bit this weekend measuring results for different speaker positions. New speakers are sometimes difficult to get just right. I also hooked up the REL sub and found the curves from the DRC205 made setting the crossover to the sub very easy. I don't have a lot of hours on it and one set of cables (Nordost Blue Heaven) were new and not broken in. The remainder of my cabling is Audio Magic so the difference in cabling may have some effect also. I'm planning to use the DRC205 more and see if it opens up a bit and becomes more transparent. I will also experiment a bit more with another different filter and hear what happens.
I used the DRC205 quite a bit this weekend measuring results for different speaker positions. New speakers are sometimes difficult to get just right. I also hooked up the REL sub and found the curves from the DRC205 made setting the crossover to the sub very easy. I don't have a lot of hours on it and one set of cables (Nordost Blue Heaven) were new and not broken in. The remainder of my cabling is Audio Magic so the difference in cabling may have some effect also. I'm planning to use the DRC205 more and see if it opens up a bit and becomes more transparent. I will also experiment a bit more with another different filter and hear what happens.