One ESL completed - disappointed..

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Hi, I am 99% certain that the measurement is from the microphone:

Evidence 1: Curve changes when moving microphone closer or further away.
Evidence 2: Curve REALLY changes when I switch on the subwoofer.


I will of cource do further measurements and at some point post the drawings of my speakers. I have no secrets here ;-)

I have only tried HOLMImpulse for half an hour, started with Arta but it crashed the drivers of my soundcard so often and that requires a reboot.

At this point the speaker that I have built will be stripped apart and rebuilt due to some problems with the glue, and some sparks from the bias connection. Also, the frame is just a temporary thing.




Regards
Bent
 
looks like the the tresshold of the mic is to low or the output of the speaker to low. i think only the upper frequency got above the noise the mic or room has on its own. look at the 5 hz its flat, but on a pretty high level. but im sure the mic wont even register 5 hz as well as the soundcard wont put out 5 hz, so you should try the measurement with a bit higher volume. at least thats my gues because this would be way to flat for any speaker measured in a room.
 
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