Rew Interpretation and treatment advice?

busch09

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Anthem d2v 3D
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Passlabs x250.5
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MA GSLCR
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Logitech
Hi,

new here. Trying to optimize my setup in my garage. Read the various tutorials but having difficulty interpreting my results.
Here is my setup:
Room probably not optimal.
Eve Audio Sc307 suspended from ceiling with wires. slanted inwards and down so tweeters point at MPL. Not sure if that's a no-no.
Topping D70 DAC
Umik-1

Screenshot 2020-10-21 183232.png


What am I seeing?? Is that bad, ok, good? At what frequencies do I have issues?
Where should I try to apply room treatment to try to fix?
If any could be bothered to provide some advice on my mess, I would much appreciate it.
 

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DanDan

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Not bad at all. The only issue I notice right away is some missing LF between 50-60 Hz. That is a fundamental region so you are missing the root notes of some chords, some bass notes, weak kick drum.
 

Marc Lombardi

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Yeah I agree with DanDan .... given the room, that is really good! But that 50-60Hz null will be virtually impossible to get rid of with treatment. You can't lift it with EQ because it's from a room resonance mode. And the room is so small there's no way you could put in enough bass traps.

What might help is a subwoofer. Not so much to get response below 50Hz (though it could help with that) but because you could move the sub around the room and see if you can counteract the null. It will be trial and error, but with REW it will be easy to assess. At that point you might end up with a peak somewhere else, but that CAN be pulled down with parametric EQ.
 

DanDan

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Good suggestion there from Marc. Another one..... you could try those speakers oriented differently. I, and many others used our ADAM S3A's vertical, with the tweeter rotated 90 degrees.
 

Johnnie

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You should use variable smoothing and five DB increments in graph volume to better understand what your room is doing.
 

busch09

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Sep 6, 2017
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My AV System  
Preamp, Processor or Receiver
Anthem d2v 3D
Main Amp
Passlabs x250.5
Additional Amp
Parasound Halo
Universal / Blu-ray / CD Player
Marantz UD8004
Front Speakers
Monitor Audio GS60
Center Channel Speaker
MA GSLCR
Surround Speakers
MA GSFX
Subwoofers
Velodyne 15
Remote Control
Logitech
Hi Thank you very much for the prompt feedback! So is the dip at 50-60 Hz the area I circled? What about the dips at 230 and 320 Hz?
Let me try an EQ.

Is there an example what real-life great curve from Rew would look like?
 

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DanDan

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Hi Thank you very much for the prompt feedback! So is the dip at 50-60 Hz the area I circled? What about the dips at 230 and 320 Hz?
Let me try an EQ.

Is there an example what real-life great curve from Rew would look like?
The Bruel and Kjaer curves are proven ideals. Don't worry about narrow anomalies on graphs.
 
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