Limiting room EQ frequencies

[Mariusmssj]

Hi all :)

Have any of you tried liming the room EQ frequencies on your setups?

When I first got my Arendal speakers I was really disappointed as I was expecting them to sound MUCH better than my at the time Q Acoustics speakers that I had. I was also using Denon 2600H, but when I got the Arendal speakers I upgraded to Denon 4700H with Audyssey XT32.

What I later discovered was the fact that Audyssey XT32 was doing way too much correction above ‘Schroeder’ frequency (room transition frequency) which in my case was 400Hz (I attached my frequency responses for those interested).

So once I limited the room correction to only go up to 400Hz the speakers transformed and sounded much much better. Which in my previous case was exactly what happened with Denon 2600H since its room correction had far fewer filters it would apply.

I would welcome others to give it a go and see how it goes.

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[Johan Svennevig]

Thanks guys.

I ve used a behringer dsp with calibrated mic displaying some dumps and humps from 1000hz and up..

I limited the eq from ca 1000hz and up, and deq enabled , i have full graveyard shift weekend so limit time this weeekend for listening, but the 20 mins I got yesterday was very promising!Natural top end and massive bottom with lots of nuances!

cant believe i havent tried this combo before…🤣🤣

[Brandon]

Have you guys ever calculated the Schroder Frequency for your listening space? This will help determine where your bass response starts to crossover to the midrange in your particular space.

Great article here:

https://www.soundandvision.com/content/schroeder-frequency-show-and-tell-part-1

It is particularly helpful when you are implementing a curtain on your correction software.

[Ralph Spataro]

The Schroder limit is good in a large listening area for two channels only and most people don’t have the space to use it but it is a great tool to use. Most have 11 channels of speakers or less. The 1723 THX has three ports and to achieve the deepest bass response is closing one port and have the back of the speaker 2ft away from the wall, I did a sweep and ran REW to get a flat bass/mid response in my setup. Adding more distance from the wall will increase midrange efficiency but you will loose low end bass response if you don’t have subwoofers.

[Mariusmssj]

It’s also worth considering that people might have limitations of how far from the wall they can place their speakers. Or how chose their seating it to the rear wall.

With doing my tests with various speakers and rooms I found that doing less EQ after the Schroder Frequency produced a more natural and dynamic sound. Our brains are amazing at filtering things out (remove all the echoes from the room and things won’t sound right) and then moment you over EQ the speakers at least personally for me they start to sound unnatural.

 

[Mirko Cognolato]

Thanks for the advice, I’ll try to limit the frequency range of the room correction and share my experience!

[Mariusmssj]

I did the same test at my parents since they have Denon 2700H which allows to have presets and this makes A B testing much easier.

After few hours of testing they did prefer the preset in which the room EQ had a curtain applied to it. For them the speakers sounded more natural.

I’ll be having some friends over soon and plan to see which option they prefer.