I'm playing with the Omnimic today, the plan was to measure the Submersives in all different configurations but I'm already side tracked. This has me scratching my head.
Here is a measurement of the Noesis full range from my main LP. The black line is when my receiver is set to "pure direct" and the blue line is when my receiver is on normal stereo, mains set to large no sub. What the hell, shouldn't the response be the same?
So, I decided to try a measurement up close. This is with the mic a couple of feet away from the right speaker. Same thing, black line is pure direct and blue line is normal stereo. Now they match up... makes no sense to me. I understand why the frequency response will be totally different back at my LP, but why the difference between pure direct and normal stereo full range with no subs when measuring from the LP, and then up close that difference is gone??
Both graphs are 1/12 smoothing. Man, the Noesis line is really smooth, much smoother with the up close measurement than my eD's or Magnepans were when Luke kamp had his omnimic over here.
The speakers were left in their places close to the corners, I'm guessing that's why there is a bump between 100 and 200 hz.
Every speaker I've measured in here has had that drop off between 10khz and 20khz, the Magnepans and eD's dropped off sharper than this however.
Ok, back to playing until the wife gets home.