Room measurement feedback

RobVFX

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Hey all,
First time poster here and I hope I have posted in the right place.
I finally set up everything in the theater and did the REW measurements and adjustments based on that feedback.
Here is my current graph. This seems somewhat reasonable to me visually but let me know how wrong I am.
Also, this is with the AVR set to 70db volume. I feel I want a bit more low end to really hit hard. Technically that seems "wrong" with my current knowledge and looking at the graph here. Any suggestions or comments/tips/RFTM?
Thanks all!
Rob
 

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Wayne A. Pflughaupt

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Graph looks really good, except for the subwoofer. That sub has excellent output all the way down to 20 Hz, if not below. It must be in a really poor location to be “dead” at 40 Hz.

Regards,
Wayne
 

RobVFX

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AVR 3600H
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Monoprice 365 THX
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Polk FXi a4
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SVS
Subwoofers
HSU 15"
Thanks for the reply. Appreciated!

I had limited options for placement sadly. Would a minidsp help fix the bump at 40?

the 40hz looks like it’s being cranked up vs being dead. Am I reading this wrong?
 

Wayne A. Pflughaupt

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Corpus Christi, TX
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Preamp, Processor or Receiver
Yamaha CX-A5000 A/V Preamp / Processor
Main Amp
Yamaha RX-Z9 AV Receiver (as multichannel amp)
Universal / Blu-ray / CD Player
Denon DCT-3313 UDCI Universal Disc Player
Front Speakers
Canton Karat 920
Center Channel Speaker
Canton Karat 920
Front Wide Speakers
Realistic Minimus 7 (front EFX speakers)
Surround Speakers
Canton Plus D
Surround Back Speakers
Yamaha YDP2006 Digital Parametric EQ (front mains)
Front Height Speakers
Yamaha YDP2006 Digital Parametric EQ (surrounds)
Rear Height Speakers
Yamaha YDP2006 Digital Parametric EQ (sub)
Subwoofers
Hsu ULS-15 MKII
Other Speakers or Equipment
Adcom ACE-515 (for power management)
Video Display Device
Yamaha DT-2 (digital clock display)
Screen
Pioneer PDP-6010FD 60" Plasma TV
Remote Control
Stock Yamaha Remote
Streaming Equipment
Roku Express
Other Equipment
Audio Control R130 Real Time Analyzer
You’re probably right about 40 Hz simply being “cranked,” now that you mention it. I could believe that given the sub in question.

EQ can certainly help, although it would need a pretty severe 10-12 dB cut to flatten 40 Hz out. That’s going to eat up a lot of headroom. You’ll just have to try it and see. If you do end up with clipping, you could simply make the cut less severe. It wouldn’t be optimal, but it would certainly still be an improvement over what you’re seeing now.

Regards,
Wayne
 

RobVFX

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AVR 3600H
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Monoprice 365 THX
Center Channel Speaker
Monoprice 365 THX
Surround Speakers
Polk FXi a4
Front Height Speakers
SVS
Subwoofers
HSU 15"
Yep. That's my fear also. I may have to reposition the furniture.
fiddles :)

The acoustic treatments on the wall did wonders for the mids and highs. All that is clean and clear. Now I need the sub to play nicely.
Rob
 
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