Originally Posted by
jpw
I am still looking to find or make the proper stand/riser for them. I realize the horn needs to be at ear level and that the 2x4's are too short, but it was all I had at the moment and I could not wait to hear them.
I never heard the 4365 so I can't comment on the sound quality differences compared to the 4367's.
The ceiling height is a suspended ceiling at 9.5 feet as the room is in my audio store. Dozens of high end speakers have been auditioned in this room over the years, so despite it's problems, at least I am familiar with it's acoustics.
A couple of quick measurements with my Audio Control 3051 real time analyzer this morning showed a smoother response at 3.75 feet off the back wall versus the peaky 160hz range using the 4.5 foot where I started (where most speakers seem to work best). The 3.75 foot position was pretty linear from 50 to 400 hz but with a fairly sharp roll off of 6-8db at 40hz relative to the bass in the 50-100hz region. The overall bass response was elevated relative to the midrange (above 800hz) about 3-4db. I expect the proper height stand to mitigate most if not all of this.
The loss of bass at 40hz is more of a concern. Perhaps I still have not found the sweet spot for these in the room yet. However I have some concern that the 4367 may have been tuned/voiced for the Japanese market which favors a curve that smoothly rolls off the deep bass at some hinge point in the mid bass. If this is the case, EQ will be necessary for me to achieve the tonal balance I expected. Flat to 40hz is important as it is low E on the commonly used standard 4 string electric bass guitar.