Need some help with low frequencies and atmos

Poulk

New Member
Thread Starter
Joined
Aug 18, 2019
Messages
9
My AV System  
Preamp, Processor or Receiver
marantz sr7010
Universal / Blu-ray / CD Player
nvidia shield tv
Front Speakers
Jamo S606
Center Channel Speaker
Jamo S60c
Surround Speakers
Jamo S60sur
Surround Back Speakers
Jamo S60sur
Subwoofers
Wharfedale w-150
Hello all
First of all, if this topic placed in the wrong place, I'm sorry (I'm a bit new here :)) Please tell where it must be posted.
I have a home theatre, a budget one.
7.2 with Marantz sr7010 avr+jamo speakers and two subs, Sunfire hrs 12 + Wharfedale SW 150
A month ago I got my first calibrated mic, UMIK-1 and here the fun starts :)
I run a lot of measurements and try many different options of placement subs. But nothing can help me with one trouble.
Huge spike on 35hz. I try all i can with setting on avr and sub, and i try different locations for subs. Nothing help.

image.png


I even begin thinking it's some trouble with Sunfire, the same spike i see on jamo floor standing speakers in direct mode.
So I pretty sure it's room trouble,
The room is about 16,5 x 11,5 feet and it has a big hole (arc) in the left wall.
No acoustic treatment at the time.
Any ideas how fight with this?
Acoustic panels (dampers), diffusers, or both? Or i need external DSP/equalizer?
AVR Audyssey xt32 doesent help much :(

And one more little question.
I plan do 7.2.4 atmos
But stuck with heigh channels placement.
Now i can't do them with in-ceiling speakers, so i plan to use small shelf speakers.
And here im stuck with two options.
1)
image.png

classical top atmos placement above the head
and 2nd
image.png

this more like auro -3d style placement. but this one much more preferred because much more easy to install.
But wich one better from point of atmos playback?
How much I lose if I use the 2nd option?
Any thoughts?
I will be thankful for any help!
 

Sonnie

Senior Admin
Staff member
Joined
Apr 2, 2017
Messages
2,440
Location
Alabama
My AV System  
Preamp, Processor or Receiver
NAD M17 V2 Processor
Main Amp
Emotiva XPA-1 Gen 2 Monoblocks
Additional Amp
Emotiva XPA Seven
Other Amp
Emotiva A-150
Universal / Blu-ray / CD Player
Panasonic UB9000 4K UHD Player
Front Speakers
MartinLogan Classic ESL 9
Center Channel Speaker
MartinLogan Focus C-18
Surround Speakers
MartinLogan ElectroMotion ESL
Surround Back Speakers
MartinLogan Motion 12
Front Height Speakers
MartinLogan EM-IC
Rear Height Speakers
MartinLogan EM-IC
Subwoofers
SVSound SB16-Ultra x 4
Video Display Device
Epson 6050
Screen
Elite Screen
Remote Control
Universal MX-890
Other Equipment
Dish Joey 4K
25933


Then post your graph. It may not be as bad as you think, although Audyssey should take care of it. Typically a spike like this is due to the sub being in a corner.
 

Poulk

New Member
Thread Starter
Joined
Aug 18, 2019
Messages
9
My AV System  
Preamp, Processor or Receiver
marantz sr7010
Universal / Blu-ray / CD Player
nvidia shield tv
Front Speakers
Jamo S606
Center Channel Speaker
Jamo S60c
Surround Speakers
Jamo S60sur
Surround Back Speakers
Jamo S60sur
Subwoofers
Wharfedale w-150
Not it's not a graph :)
25934

ye it's in corner. but i try different locations. all the time this 35 hz mountain :(
 

Sonnie

Senior Admin
Staff member
Joined
Apr 2, 2017
Messages
2,440
Location
Alabama
My AV System  
Preamp, Processor or Receiver
NAD M17 V2 Processor
Main Amp
Emotiva XPA-1 Gen 2 Monoblocks
Additional Amp
Emotiva XPA Seven
Other Amp
Emotiva A-150
Universal / Blu-ray / CD Player
Panasonic UB9000 4K UHD Player
Front Speakers
MartinLogan Classic ESL 9
Center Channel Speaker
MartinLogan Focus C-18
Surround Speakers
MartinLogan ElectroMotion ESL
Surround Back Speakers
MartinLogan Motion 12
Front Height Speakers
MartinLogan EM-IC
Rear Height Speakers
MartinLogan EM-IC
Subwoofers
SVSound SB16-Ultra x 4
Video Display Device
Epson 6050
Screen
Elite Screen
Remote Control
Universal MX-890
Other Equipment
Dish Joey 4K
Change the Freq. Axis to Logarithmic ... then graph limits from 10Hz to 300Hz... :T
 

Poulk

New Member
Thread Starter
Joined
Aug 18, 2019
Messages
9
My AV System  
Preamp, Processor or Receiver
marantz sr7010
Universal / Blu-ray / CD Player
nvidia shield tv
Front Speakers
Jamo S606
Center Channel Speaker
Jamo S60c
Surround Speakers
Jamo S60sur
Surround Back Speakers
Jamo S60sur
Subwoofers
Wharfedale w-150
Idk what I'm doing wrong :)
hope this time it ok ;)
full spectrum (7.2 speakers)
25942

sub 10-300 hz
25943


25944

and this is the measurement for flor standing front only jamo speaker in direct mode
25945
 
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