Boom Boom resonance in the room - Home Theater Forum and Systems - HomeTheaterShack.com

 
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post #1 of 3 Old 05-23-08, 04:05 PM Thread Starter
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George
 
Join Date: Jan 2008
Posts: 151
Boom Boom resonance in the room

Hey, I have done a few tests with a flat frequency through my HK635 and added a waterfall in the mix to show the resonance I am experiencing. According to ten tests along my front wall the curve with the least amount of dips was in the right corner. I have taken the measurement with the bare subwoofer signal and the one after my EZset/EQ. I am not having that much faith in the HK EQ technology at this point. Maybe I am wrong but I do welcome any comments on what you see.


noEQ

Boom Boom resonance in the room-may23_noeqgraph.jpg

noEQ waterfall

Boom Boom resonance in the room-may23_noeqwaterfall.jpg

EZset/EQ

Boom Boom resonance in the room-may23_ezseteqgraph.jpg

EZset/EQ waterfall

Boom Boom resonance in the room-may23_ezseteqwaterfall.jpg
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post #2 of 3 Old 05-23-08, 05:33 PM
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brucek
 
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Re: Boom Boom resonance in the room

Quote:
I am not having that much faith in the HK EQ technology at this point.
Yeah, I think a BFD could clear that raw signal up with three or four filters, a lot cleaner than the auto EQ did. But it ain't that bad really.....

brucek
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post #3 of 3 Old 05-23-08, 09:07 PM Thread Starter
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George
 
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Re: Boom Boom resonance in the room

Thanks for the opinion bruce, I think I felt it was worse than it was until I heard it in the real world. I just finished watching Ratatouille BD with my son, and I have to say I was quite impressed with the sound. Maybe just lowered expectations, but wasn't as bad as I thought it might be. Didn't notice a large amount of resonance to make the bass too smeared and "one-notey". It didn't leave me with a feeling of ache either.

I did do an auto plot for filters on the curve and the theoretical BFD did seem to plot it much flatter, I agree with you there.
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