Tweakers' Asylum

• Re: Can a room be over-dampened by them? - tpcarter 17:16:58 02/21/07 (3)
  In Reply to: Can a room be over-dampened by them? posted by darkmoebius on February 21, 2007 at 15:33:48:

  ?: Have you had a chance to try 3 per corner? (roof and side walls).
  !: No, I have not but what I did put up has resulted in awesome balance between low, hi, and mids.

  ?: Also, did you notice a need for further traditional acoustic treatments along with the Cathedral panels?
  !: Yes! Now that the sound is much cleaner, I can more readily identify what else I need to do. Basically, I need a little absorption directly behind me, plus modifying the parallel wall (also behind me). I actually found that a 4x6' folding silk screen works well when angled just slightly at each hinge. And... if it had greater WAF, I'd put a 4x4 absorption panel on the side wall at the first reflection point.

  ?: The PF review shows him using one of the smaller ASC tubes in the corner along with the Cathedral Panels. I'm assuming that was for midrange dampening. Am I correct in reading that the Cathedral's handle frequencies below 200Hz?
  !: Yes, that is my understanding as well.

  Very interesting product at a great price. So many questions to ask...

  I agree! If you try it out, let me know what you think.

  ~Tom
  
  
  

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  • If these work well at low freqs, it will make domestic life much easier... - darkmoebius 18:49:04 02/21/07 (2)
    In Reply to: Re: Can a room be over-dampened by them? posted by tpcarter on February 21, 2007 at 17:16:58:

    The primary reason I haven't gone for the large tube traps is that my girlfriend would blow a gasket. It's already bad enough with 5' horns and a pair of subwoofers sticking 5+ ft. out into the living room, can't imagine what those large traps would do.

    

    I'm looking to tear out those windows on the left and build in a walled corner like the other side with a centered window on the rear wall. I can then use heavy curtains for the reflection point behind the speakers.

    But, using the Cathedrals and the much thinner tube traps like in the PF review is definitely do-able. I also need some diffusers for the 1st reflection points.

    I've got two fairly large suck-outs at 30-45Hz & 55-72Hz. This might be the result of bass overloads. I know I can walk around my room with an SPL meter and find "hotspots" that are If the Cathedrals could significantly drop that > 70Hz rise, things might fall into fairly nice balance.

    

    The Cathedrals are perfect for this back wall which extends 5 feet out over my dining room. Guaranteed to have high pressure zones in the corners with those bare walls. The dog is strategically placed to absorb reflections from the floor.

    
    
    
    

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    • Re: If these work well at low freqs, it will make domestic life much easier... - Robo02 13:02:29 02/23/07 (0)
      In Reply to: If these work well at low freqs, it will make domestic life much easier... posted by darkmoebius on February 21, 2007 at 18:49:04:

      The Cathedral Panels will be easy to apply in your room and you will get good results.

      It is difficult (though not impossible) to mount the Panels to the ceiling; might be easier to mount additional panels near the floor (or just lay one on the floor near the corner, if you want to go for more than two in a corner, though two of these per corner is very powerful already.

      With respect to the use of other acoustic treatment products, yes, you can definitely take it farther. Because the Cathedral Panels are not absorptive, they can be used with any other type of acoustic treatment product. I have had particularly good results with the Shakti Hallographs, one of the products that does not always play well with absorbing/diffusing products.

      Since the Cathedral Panels are particulary effective on 20-200Hz, which is the most difficult area to deal with acoustically, and would traditionally require the biggest panels or rounds, other types of acoustic products, most of which don't do anything under 200-250Hz, become all the more effective.

      Over at The Cable Company (affiliated with Ultra Systems) they have just begun a three part email piece on room acoustics. You can view the first installment at
      http://www.fatwyre.com/email 1_31_07.html
      and if you want to get emails of the next two parts you can send them an email or complete the guestbook on that website.
      
      

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    • Re: If these work well at low freqs, it will make domestic life much easier... - tpcarter 23:00:45 02/22/07 (0)
      In Reply to: If these work well at low freqs, it will make domestic life much easier... posted by darkmoebius on February 21, 2007 at 18:49:04:

      LOL about the dog!

      And by the way, two cats placed 2.5' away from each other, with twitching tails (from 0 to 79 degrees), will work just as well.

      :-)

      Tom
      
      

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