Quick advice on REW measurements for subs

[isaac]

HI

Im a new member

Im currently trying to find the best positions for my two SVS 1600 ultra subs

I wont post all my measurements, but at this stage im trying to decide between two locations that seem to have the best room response

If someone can quickly look at the graph and give there opinion on what they see and which measure looks best . And hopefully why it looks best also

One measurement has boths subs front of room near corners but not in corners. Other has them in middle of room on side walls facing each other. one behind lounge MLP and one in front of lounge

Ill be using Anthem ARC to EQ . I did use SVS apps PEQ to boost the signal at 100 hz by around 6 dB or so. It works. But then i thought whats the point if ARC will do all that anyway.

Thanks in advance

 

[John Mulcahy]

Generally best going for the response that has the smallest dips in frequency ranges you care about. The response can be altered by changing the phase control on one of the subs though, or by independently EQ'ing them with the help of MSO if you have that capability in the system.

 

[isaac]

I dont have mso but my avm 60 has ARC
Im able to flatten the response with ARC but im trying to determine the best sub placement first
I tried altering phase didnt work much for me , generally made things worse
I can also boost the signal by 6dB using the svs app PEQ
Would a good plan of attack be to use PEQ through the svs app then calibrate with ARC? Or just ARC?

 

[isaac]

sorry for the newbie questions.

but i have one more if thats ok

I read that changing sub distance can improve the response sometimes.

Whats your opinion on this?

I did try adjusting distance by 1m or so via my AVM 60 with ARC disabled so prior to any calibration. Made absolutely no difference to the measurement no matter what distance i added?
I watched a youtube vid where someone altered the distance via Auddessy and it made a big difference? Kind of confused as to why it doesnt change the measurement at all

 

[John Mulcahy]

MSO is aimed at situations where the delay and/or EQ of each sub can be altered, which sounds like it may be the case if you have parametric EQ capability for each sub. You will only see an effect from delay changes on a measurement of both subs if you can delay each sub independently or when you add the mains in to the measurement, delay matters when it is relative to something else such as a main speaker. Just delaying the signal to both subs is no different than starting your measurement a few ms later, it won't alter the response.