who knows more about this then me. after getting my room correction system, i got curious to know what it was correcting and how much. so i downloaded a buncha test tones and got a ratshack sound meter. the results were suprising and also somewhat confusing. (i tried uploading pix but it almost always fails with flickr, so sorry about the clicking. also i apologize for the crappy cell fone pix, but you'll get the idea).
http://www.flickr.com/photos/38854667@N00/3443165546/
well the first thing is that wow, it's almost ruler flat for most of it! and yes, that's useable bass at 32hz, less then 3dB down (vantages)! but what is going on at the top? close up:
http://www.flickr.com/photos/38854667@N00/3443165498/in/photostream/
so if you can't read the blurry numbers, it drops off at 4khz, down some more at 5khz, jumps up at 6.5khz, up more at 8khz, then rolls off at 10, 12.5, 16 khz. the same thing happens with the room correction off, so it's not the processor doing it. i haven't really seen a frequency response graph like this ever! most of them jump around down low and early mid, then flatten out. i would think a suck out at 4-5khz would be caused by a lot of absorptive stuff like carpet and furniture. but i have all hardwood, only a few pieces of furniture, reflective walls, vaulted ceiling? i have curtains behind and to the sides of the speakers, but i wouldn't think that would cause it? and i've never thought of ML's as being 'rolled off', their known for their mids/highs, right? down 10dB above 10khz? does this make sense to anyone?
http://www.flickr.com/photos/38854667@N00/3443165546/
well the first thing is that wow, it's almost ruler flat for most of it! and yes, that's useable bass at 32hz, less then 3dB down (vantages)! but what is going on at the top? close up:
http://www.flickr.com/photos/38854667@N00/3443165498/in/photostream/
so if you can't read the blurry numbers, it drops off at 4khz, down some more at 5khz, jumps up at 6.5khz, up more at 8khz, then rolls off at 10, 12.5, 16 khz. the same thing happens with the room correction off, so it's not the processor doing it. i haven't really seen a frequency response graph like this ever! most of them jump around down low and early mid, then flatten out. i would think a suck out at 4-5khz would be caused by a lot of absorptive stuff like carpet and furniture. but i have all hardwood, only a few pieces of furniture, reflective walls, vaulted ceiling? i have curtains behind and to the sides of the speakers, but i wouldn't think that would cause it? and i've never thought of ML's as being 'rolled off', their known for their mids/highs, right? down 10dB above 10khz? does this make sense to anyone?