Room Treatments
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Joined: Mar 2002
Posts: 3,749 Likes: 37
connoisseur
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OP
connoisseur
Joined: Mar 2002
Posts: 3,749 Likes: 37 |
I have a wickedly unpleasant 800Hz spike in my living room. Major bass suckout as well. It's a peculiarly shaped room with ceiling which ranges from 12 to 20' and then a stairway which goes up to a landing which is 30' above the living room floor. Worse, there is a skylight which is a 3.5' x 3.5 'chimney' up to the slanted skylight. Acoustically, a nightmare. So, I built one (building another) 7' x 4' framed treatment with 2" of rockwool behind a patterned fabric. I will try to post pictures. [img] https://postimg.org/image/59j3dwyt7/[/img] [img] https://postimg.org/image/ijg47bz65/[/img] I'm hoping this will tame the 800Hz. Ian suggested multiple subs for the bass problem. I have 1 EP600. Might be cheaper to get a new house. [img:center] https://postimg.org/image/ijg47bz65/[/img]
Last edited by 2x6spds; 11/05/16 06:25 AM.
Enjoy the Music. Trust your ears. Laugh at Folks Who Claim to Know it All.
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Re: Room Treatments
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Joined: Aug 2004
Posts: 6,379 Likes: 7
axiomite
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axiomite
Joined: Aug 2004
Posts: 6,379 Likes: 7 |
Nice... like camo for a fine living room.
I was thinking that a Helmholz resonator tuned for 800 Hz and filled with absorbent material would be useful, but I had trouble finding dimensions that would cooperate.
M60ti, VP180, QS8, M2ti, EP500, PC-Plus 20-39 M5HP, M40ti, Sierra-1 LFR1100 active, ADA1500-4 and -8
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Re: Room Treatments
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Joined: Aug 2004
Posts: 6,379 Likes: 7
axiomite
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axiomite
Joined: Aug 2004
Posts: 6,379 Likes: 7 |
Yeah, I found that but it used long words and I was really tired.
M60ti, VP180, QS8, M2ti, EP500, PC-Plus 20-39 M5HP, M40ti, Sierra-1 LFR1100 active, ADA1500-4 and -8
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Re: Room Treatments
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Joined: Mar 2002
Posts: 3,749 Likes: 37
connoisseur
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OP
connoisseur
Joined: Mar 2002
Posts: 3,749 Likes: 37 |
Enjoy the Music. Trust your ears. Laugh at Folks Who Claim to Know it All.
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Re: Room Treatments
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Joined: Mar 2002
Posts: 3,749 Likes: 37
connoisseur
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OP
connoisseur
Joined: Mar 2002
Posts: 3,749 Likes: 37 |
Helped bass suck out ... 800Hz spikey better ... needs more help
Enjoy the Music. Trust your ears. Laugh at Folks Who Claim to Know it All.
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Re: Room Treatments
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Joined: Mar 2014
Posts: 1,593 Likes: 1
connoisseur
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connoisseur
Joined: Mar 2014
Posts: 1,593 Likes: 1 |
If I had a better idea of your room I could help with the bass issue. The 800hz issue sounds like a mechanical resonance, not an acoustical one. If I had to guess the tweeter is under damped suffering distortion. Is this your EPOS setup? The panels you put up will lower decay time and reduce parallel flutter issues. They cant fix a bass null issue or mechanical resonance. You have to move the speaker or listener for Bass problems.
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Re: Room Treatments
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Joined: Mar 2014
Posts: 1,593 Likes: 1
connoisseur
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connoisseur
Joined: Mar 2014
Posts: 1,593 Likes: 1 |
Tighten up the drive units.
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Re: Room Treatments
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Joined: Jan 2007
Posts: 10,490 Likes: 116
shareholder in the making
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shareholder in the making
Joined: Jan 2007
Posts: 10,490 Likes: 116 |
It's his tube amps. The natural frequency of a grid on a pentode is 800Hz.
House of the Rising Sone Out in the mid or far field Dedicated mid-woofers are over-rated
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Re: Room Treatments
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Joined: Mar 2002
Posts: 3,749 Likes: 37
connoisseur
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OP
connoisseur
Joined: Mar 2002
Posts: 3,749 Likes: 37 |
Thank you fellas I am using a pair of Emerald Physics EP100.2SE power amplifiers, a pair of Emerald Physics EP2.8 speakers with DSP.
Thanks for the suggestion about the tweeter and drivers!
The designer of these speakers is coming out this Thursday with an upgraded DSP and other goodies.
I'll report back
Last edited by 2x6spds; 11/08/16 08:34 PM.
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