I need help with my room


Rooze came over yesterday with a TACT room analizer(?) which showed the frequency response of my system in my room. I will try to post pictures of the results, but suffice it to say that the entire frrequency response is muted. I have one spike at about 40Hz but everything is an average of 6db below what it should be.

There are pictures of my system so you can see some of the room, although I have taken down all my room treatments. This did help, but not enough. The room is carpeted and has a cheap acoustic tile ceiling. I was wondering if fire rated tiles would help in the midrange and treble?

Any ideas for getting me to where I should be? HELP!
128x128nrchy
Nrchy, in another post titled How Important Is Flat Response you wrote:

It is possible to love a system that is not musically accurate. Just because a person likes the sound of their system doesn't mean it's accurate, and just because a system is accurate doesn't mean you will like the sound of it!

Has the measurement experiment altered your views. I hope not.

Also in that same thread I posted a link to a site run by Ethan Winer. There he has a graph of the bass response in his personal listening room. Ethan makes a living selling and advising people on acoustic treatments, yet the response in his own room doesn't measure flat.
I'm not necessarily trying to get a flat response, I just want my system to sound better.
Nate: Easy mistake to make when posting on a complex subject i.e. assuming that we know what you know. Other than that, i agree with what you said. That is, you left out just a few "small" details : )

My thoughts are that you would have gotten VERY different results if you would have taken the measurements with your Krell in the system. The high output impedance that Cary amps demonstrate will typically introduce very measurable divergences from "flat" frequency response in most systems. On top of that, those divergences from neutrality will vary in frequency and amplitude with the different loudspeaker / cable combinations that they are mated with. This is not to say that Cary amps don't or can't sound good, but that the results of mating this type of amp with any given speaker / cable interphase is most assuredly a "crap-shoot" at best. With components like this, it is strictly a matter of "system synergy" as the predictability factor based on science is very low.

As a side note, those that own Cary products and think that i'm slapping them in the face / stepping on your toes, please review some of my previous posts where i mention this brand. While i personally believe that Cary amps are not a very "linear" device, they are quite capable of producing very "musical" sound that is highly enjoyable and projecting vast amounts of spaciousness into a recording. Funny thing is, one of my other "favourites" when it comes to mass-produced tube gear would be Atma-Sphere amps, which measure VERY differently from Cary amps. Completely different ends of the sound and design goals spectrum, so go figure... : )

Other than that, if it were my system and knowing what i know now about the test conditions, i would consider the test runs that you did to be nothing more than an experiment and "learning session". If you wanted to do this "right", you really need to get your amp back in there ( or the amp that you intend to use in the near future ) and give it another series of test runs. Sean
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PS... If i remember correctly, Stereophile actually tested a Krell amp in the same issue that they did a Cary amp. John Atkinson said something to the effect of "If one of these amps is right, one of them is VERY wrong". Obviously, it all boils down to a matter of personal preferences : )