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Isolation Platform to Raise & Isolate Loudspeakers

Hello All!

Today I purchased a couple of Auralex Subdude isolation platforms for my Klipsch Forte IIIs.  I own a smaller one for my REL T9i and it works wonderfully.  

The designer of the Forte IIIs has stated in an interview (I think) that the Fortes could benefit from being raised off the floor, but I also read (somewhere) that using spikes or something that does not cover the entire base of the speaker can create coupling/decoupling issues.  Who knows? 

At any rate, these will raise the speakers a mere 1.75".  I do, however, know that the Subdude is wonderful with a subwoofer as I have used it to great results. 

Does anyone have any experience with this issue/situation?  I'll certainly report back on whether there is an improvement.  Currently my Fortes are sitting on a suspended oak hardwood floor.  
128x128jbhiller
three_easy_payments's avatar
three_easy_payments
2,097 posts
 
@thyname   

IsoAcoustics GAIA line

No way would I put a Klipsch Heritage line speaker on feet or spikes.  They weren't designed to have a cavity beneath the speaker.   Paul W. Klipsch himself has noted in his designs that a cavity beneath the speaker can "ruin" bottom octave reproduction.

Now on speakers that are designed on feet or spikes I totally agree that the GAIA line often provides a nice improvement.  I use them on my Spendor D7s and like the improvement.
thyname's avatar
thyname
3,107 posts
 
Sorry @three easy payments... I am not familiar with Klipsch speakers. Never owned them. You are right
jbhiller's avatar
jbhiller OP
1,436 posts
 
The subdudes help, just as they did my REL.  Things sound better.  I'm not sure how to phrase it other than saying a good touch more coherent.  Surprisingly, the high end sounds more together. Hmmm. Inexpensive tweak. 
jbhiller's avatar
jbhiller OP
1,436 posts
 
After another four hours of listening and swapping them in and out, I think the best description is that the midrange and treble have become better defined--ironically not the low end as much. The techy folks can either chalk this up to placebo or something scientific. I won't be returning them or moving them out though.
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