Your speaker placement is funky, to say the least. I left this in another post but it warrants repeating here: begin by using Allison rules for speaker placement. There is plenty about this on the Web and Mr. Allison did the math and knew his subject. It boils down to this:
1. Take a measurement from the center of your woofer to the side wall. 2. Take a measurement from the center of your woofer (not the back of the speker) to the wall behind the speaker. 3. Take a measurement from the center of the woofer to the floor. You will have three numbers. The product of the lowest number and the highest number will give you value A; the square of the middle number will give you value B. You mission, should you choose to accept it, is to get these numbers as close together as possible. There are many variations, of course, except for the height of the woofer. Still, really, I implore you: try this and see what happens. The whole point is to eliminate, as much as possible, untoward room modes and improve bass and mid-bass performance. So, work up the numbers and see what you get. Then, start playing with different numbers until the values are close. Then, go move your speakers. Toe them in for on-axis listening, as you should, and set your listening position, if you can, to form an equilateral triangle. If you jaw doesn't drop, I'll be surprised. rbl;156805 Wrote: > Many thanks guys > > Inguz - I tried setting flatness to 10 and that definitely helps - > certainly some of the high end has come back, although the sound is > still very "thumpy" / heavy. I have 3 questions > - what does Flatness actually do? > - what does "No Correction" do? It clearly makes a huge difference to > the sound! > - finally the volume is much lower. I guess this comes from the fact > that you can't boost frequencies since you may get clipping in the > digital domain, so you have to lower the volume of everything else to > achieve the same effective result? > > highdudgeon - the null around 80Hz must be a room thing as you say. I > have the speakers toed in and 3ft from the back walls and 6ft from the > side walls but better try again! My old ESL 57s worked very well there. > When you say acoustic treatment behind the speaker, what do I do? > Aesthetics are definitely a concern. > > Totoro - thanks for the DRC files. I will definitely give them a go as > soon as I get a chance - hopefully this w/e. -- highdudgeon Relax. It's about the music. ------------------------------------------------------------------------ highdudgeon's Profile: http://forums.slimdevices.com/member.php?userid=2195 View this thread: http://forums.slimdevices.com/showthread.php?t=29927 _______________________________________________ audiophiles mailing list [email protected] http://lists.slimdevices.com/lists/listinfo/audiophiles
