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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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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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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.
Subjective measurements with the proper protocol is the only thing that matters.
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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?
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?”

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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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