Roon user question - Do you use Roon DSP?

[Chris]

While playing with my new Puffin DSP phono preamp, I am trying the built in Room Eq function. The manual advises using an RTA app on your phone to determine the room mode usually around 300hz. Sure enough, I checked using the RTA app and saw a peak bang on 300hz. So, I have engaged this feature on the Puffin. This got me thinking about the DSP features of Roon. Being the usual minimalist audiophile, I had not paid much attention, but now I am having a rethink? Right now, I have engaged a Parametric EQ notch of -6db centered at 300hz with a Q of 2.6 to mimic the Puffin default setting.

So, my question to those that use Roon, do you use the DSP and have you tried the 300hz room mode eq?

[clausen]

Do you like the filter?

[Chris]

Jun 19, 2020 16:45:47 GMT -5 clausen said:

Do you like the filter?

Still testing/listening. It's subtle but I think the bass region is now very smooth without muddiness. More listening testing needed. It's definitely not a harmful adjustment.

I've been doing more research and I think the 300hz, 2.6 Q, -6db setting is derived from the Schroeder Frequency which you can read about here:

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

Based on my reading, this is at least one thing every audiophile should try in their system.

My Martin Logans have a mid-bass control that offers a +2,0,-2 setting centered at 250hz. I believe this is a nod to the Schroeder Frequency. I set mine to -2 before I knew about all this and adjusted the 75hz control to -3db. I arrived at this intuitively and it eliminates any boominess I might have had.

The beauty is that Roon incorporates the ability to adjust this very precisely with PEQ filters. It's a freebie that adds value to Roon.

Generally, I am a purist audiophile but I am open to experimentation when backed up by at least common sense or actual scientific study. I do believe with computing power now practically free it makes DSP a no brainer. I think one of the big trends going forward in speakers will be self powered dsp controlled. It makes so much sense and I think the ultimate audio quality will prove this.

I once asked the proprietor of Janszen audio if he preferred powered speakers from a design perspective and is answer was a definitive YES!

[Chris]

Here's a screenshot of my Roon in case anyone wants to see the exact details. I am using this in my Living room system with Magnepan LRS speakers.

[clausen]

Thanks. Have you ever tried any bass traps or other acoustic treatments?

[Chris]

Okay, I continue my research and experiments and have added a high pass filter at 30hz. I am calling this my "Bookshelf PEQ". I encourage anyone using Roon and small box speakers to try this. I think you will like it?