John Galt

John Galt

Junior Audioholic
Pretty excited to get my first sweep, even though I barely know what I’m doing.

My config is in my sig. Measured on mic stand from MLP, set Audyssey to OFF, connected UMIK-1, mirrored laptop to Denon via HDMI, and this is what I got. Anything interesting jump out for those who know what this all means?

1.png


2.png


3.png


Distortion

4.png
 
Last edited:
S

shadyJ

Speaker of the House
Staff member
A lot of the stuff you posted isn't very meaningful, sorry to say. Those distortion levels are very high, but I think it is a measurement problem and not the actual performance of your system. You should just post the basic frequency response graph at your listening position. Make sure it only has a 50dB window on the Y-axis.
 
John Galt

John Galt

Junior Audioholic
A lot of the stuff you posted isn't very meaningful, sorry to say. Those distortion levels are very high, but I think it is a measurement problem and not the actual performance of your system. You should just post the basic frequency response graph at your listening position. Make sure it only has a 50dB window on the Y-axis.
Is this what you're referring to?

spl1.png
 
John Galt

John Galt

Junior Audioholic
Yup. See the difference? With a 20 dB scale it looks pretty flat. Now we're getting some useful info. I see some opportunities with your bass response.
I have to admit that I feel pretty lost in REW. Do you happen to know of a good REW For Dummies resource that covers the basics without getting too far into obscure areas and unnecessary complexity for a noob like me?
 
Pogre

Pogre

Audioholic Slumlord
I have to admit that I feel pretty lost in REW. Do you happen to know of a good REW For Dummies resource that covers the basics without getting too far into obscure areas and unnecessary complexity for a noob like me?
Phew, well I can link you to s a resource or 2, but I haven't found a for dummies version and have much to learn still myself. Everything I've seen on it is pretty dense. Some dry reading too...

PS, I haven't been through this one yet.

 
William Lemmerhirt

William Lemmerhirt

Audioholic Overlord
One small observation. The sub is way too hot. Like almost 15db hot from my guestimation. That’s part of why the waterfall shows so much ringing, and heat energy below 30hz. Also, might add a couple feet to the sub to see if the 80hz dip goes away. Or try to raise/lower the XO and see as well.
 
newsletter

  • RBHsound.com
  • BlueJeansCable.com
  • SVS Sound Subwoofers
  • Experience the Martin Logan Montis
Top