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Bob Crantz
 
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Default Hey, Bob Crantz!


"Capt. Rob" wrote in message
ups.com...
Is the transient intermodulation distortion and group delay improved?


Are the phase transitions of the crossovers continuous and first order
monotonic?


Do the sidelobe levels of the speakers decrease with aperture
efficiency?


Regarding reception? Only used with in-house media.


Reception? These questions all involve the transmission of sound.



Do the speakers have high single mode efficiency for the entire
bandwidth?

Compared to what? A Snell K3? Certainly.



Do they then have variable apertures?



Have you measured the Dirac response of the system end to end?

Not familiar with the Dirac response, Bob. Fill me in.


The impulse response of the system. This can show phase and transient
distortions.

At the moment I'm trying to cut side-wall reflection for the upper
midrange by building secondary tweeter enclosures (Box-external) out of
foam. Seems to be working, though things are still too bright for
music.


Sometimes adjusting the separation of the speakers can reduce this,
especially if the reflection is due to a sidelobe of the speaker. The other
speaker,in essence, becomes a parasitic radiator that cancels sidelobes. You
can also try a third radiator that is isotropic and has reduced radiation to
reduce the reflection. You'll have to move it around to find the sweet spot.
Foam at the aperture may not work as well as a wall hanging. Is the foam in
the near field of the speaker?


So how many monthly payments of $49.95 do you have to make for this new
"audio system" of yours?

Amen!




RB
35s5
NY