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In the Forum: Horn-Loaded Speakers
In the Thread: Designing and building a 5 channel horn loaded (looking for directions on my way)
Post Subject: Some comments about your response.Posted by Romy the Cat on: 7/27/2016
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kodomo , I would like to make some comments about your response.
The presumption that the mic was exact
in the listening spot and the drivers are time-aligned and run “in-phase”. If
any of the above conditions are not true then all bets are off and any below
has no relativity to you.
Generally the response is Ok but I would pay attention to a little
bulge you have from 7K to 12K. In case of average room (in term of acoustic)
this shall be auditable. I understand that this is hoe your MF drivers works.
Do, shut down your tweeter and try to listen a bit without it. Then, try to
turn the entire playback a few degrees off your listening spot. For instance if
your MF horns aimed now to your side of your head then aim them to the end of
your shoulder. Do NOT turn juts MF horn but turn only the while system. Turning
the MF only would bring a need to time-re-aligned the whole system, you do not
want that.
So, as you turn slightly your system the imaging will be change
bit try to discard it. The HF will be more gently rolling off and try to get use
to it. This little “sparkle” at 10K shall give to you some pleasure but do try
to tune yourself off it. If you feel that with loosing of that bulge at 10K you
will be losing transients at your upper range then do not “fix” it by 10K bulge
but rather by … loading the output stage of your SET slightly more idle. (It
will change gain as well). As you find a good performance of your upper range
with reduced bulge at 10K then put your tweeter back to the duty.
Rgs, RomyRerurn to Romy the Cat's Site