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Multi-Way Conventional loudspeakers with crossovers

Room response included in Xover design?
Room response included in Xover design?
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Old 16th February 2020, 09:21 AM   #21
Zuhl is offline Zuhl  England
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Quote:
Originally Posted by Bill Coltrane View Post
Making a speaker "flat" inside a room will not give a good result, it just sounds way to bright.
.
No it doesn't! I know what me ears are telling me!
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Old 16th February 2020, 09:22 AM   #22
Boden is offline Boden  Netherlands
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@Eriksquires: what you describe does unfortunately not say much about measurements. In your description this looks like the typical 1 meter on-tweeter-axis measurement.

Firstly, there are problems with measuring the lower midrange frequencies, as amply demonstatred by Mbrennwa in the Monkey Coffin thread: you can only properly measure nearfield until approx 300-400 Hz; your 1 metre measurement will only be valid as of approx 900 Hz in the best of cases. How to accurately find the missing 300-900 Hz range, a fair bit of which is causing our problems (or is even designed -as a dip- into the x/o?)
Furthermore, I looked at your in-room-measurements. To be honest : flat to 20-25 Hz looks to good to be true. Maybe I am wrong, but it looks more like a beautiful just one point in space coincidence than a valid measurement that holds over some area. Please do not take this is criticism, but the excursion required at 20 Hz is simply way beyond what a 6.5 midwoofer can move in terms of air. Of course there is room gain etc, but ruler flat until 20Hz...
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Old 16th February 2020, 09:32 AM   #23
Bill Coltrane is offline Bill Coltrane  Netherlands
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Quote:
Originally Posted by Zuhl View Post
No it doesn't! I know what me ears are telling me!

Then your ears don't match the ears of the vast majority of human kind.
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Old 16th February 2020, 09:38 AM   #24
jamesblonde is offline jamesblonde  Italy
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This is just another reason to go the DSP/active crossover route. You can optimize the speaker response any time you move the speakers.
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Old 16th February 2020, 09:55 AM   #25
wintermute is offline wintermute  Australia
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Room response included in Xover design?
Done.
Quote:
Originally Posted by montana1 View Post
Forum Moderators,
Could typing error in post title be corrected? It should read “Room response included in Xover design?”

Thanks,
Rich
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Old 16th February 2020, 02:32 PM   #26
montana1 is online now montana1  United States
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Thanks Tony.
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