Share your in-room measurements?

[IamJF]

This is my in room bass response please help me i have no bass 40-60 hz and a huge spike in my port tuning area what to do?

Closing the port is a good idea! Just juse a few socks for a quick try.
When you can't move your woofers - you can't defeat the 50Hz notch. It's physics. Think about locations. Behind your listening seat. In a corner. Under the couch with a flat DIY woofer. Get them up somewhere. There are always possibilities, you need to be creative.

 

[Chromatischism]

these are only two woofers , listening position is 2 meters from them , it cannot be changed and speakers location is fixed too ( room is small and cluttered and they are very close to each other

This is unfortunate, because without changing placement, you can't change modal activity. Can the room layout be rotated?

But what does this mean?

when i play only one the measurement shape is very simillar so they dont cancel each other

 

[JATC]

When I was setting things up, I found that an XO point of 100Hz gave the smoothest response and transition to the sub,

When I had my Sierra LX's I also found that a crossover of 100hz was the best when integrated with my dual PSA TV1512's. I used the full port plugs,they seemed to align better that way when using Audyssey.

 

[GaryY]

Dirac is so powerful at least to make graph good enough very easy ;;;;;
For 2 days, I'm learning how excellent streamer was Eversolo.

 

[Ramon Cota]

This is unfortunate, because without changing placement, you can't change modal activity. Can the room layout be rotated?

But what does this mean?

oh i meant that two speakers dont cancel each other like someone suggested.

 

[Ramon Cota]

This is my measurements with ports plugged and unplugged , still no major difference. Im a little suprised that port only adds 2,5 db below 100 hz. By the way do you think that discrepancies in 500-1000 hz may be caused by port already resonating ?

 

[Chromatischism]

oh i meant that two speakers dont cancel each other like someone suggested.

Ok. Whether you get destructive interference (aka "cancellation") or constructive interference depends on the frequency in question. You will have both at alternating points. The largest ones you have are an additive effect peaking at 32 Hz and a destructive one at 49 Hz.

 

[ZolaIII]

This is my measurements with ports plugged and unplugged , still no major difference. Im a little suprised that port only adds 2,5 db below 100 hz. By the way do you think that discrepancies in 500-1000 hz may be caused by port already resonating ?
View attachment 353209

Zip and upload mdat measurements hire. It is a phase cancellation as it cannot be anything else. You claim small room, maybe so but not short one as peek is at 34 Hz.

 

[Ramon Cota]

What are mdat measurements ? One more thing : speakers use sb acoustics 8 inch drivers and when i look at manufacturer provided graphs they have identical 50 hz suckout and 33 hz boost ( almost all their woofers have ). Does that mean that room they meaure them in causes very simillar cancellations or maybe it is property of their drivers bo behave such a way ?

 

[Ramon Cota]

and this is my room , it is 5.4 meters long and 2.6 meters wide

 

[GaryY]

and this is my room , it is 5.4 meters long and 2.6 meters wide

View attachment 353241

I don't know the dimension of room but the distance between left and right looks to narrow.

 

[GaryY]

and this is my room , it is 5.4 meters long and 2.6 meters wide

View attachment 353241

32 Hz boom is already expected from Room simulation. 50Hz null somehow also as well.

 

[RMW_NJ]

These are the original Buchardt S400s with the SE crossover, which has a lower xover point than stock…it’s the version I wish had been tested here. Anyway, I had these in storage and decided to take them out today and give them a listen. I forgot how good they sound.

 

[GaryY]

Today I have tried to find better positioning of mains and sub for 4 hours, but in the end came back to original place which I found after 2 months efforts. Couldn't find better place and cross over at all. What I have measured so far as main listening poistion is not acutally main listening postion in reality because 90% of time, I listen to music sitting at desk to work at home. So I decided to make Dirac setting for desk sitting where I feel always bass boom. I only adjust delays and run automized Dirac using miniDSP SHD. Surprisingly outcome is even better than fake MLP. Dirac and minidsp SHD is really powerful for 2.1 or 2,2 system.
I also learned that positioning speakers are the most important one whatever tool i use.

P.S> I also tried to compare USB cable connecting my PC to miniDSP if 4.5m active USB cable is the reason of better distortion than the measurement with Eversolo. With usual 4.5m passive USB-C cable I could measure Eversolo, but sometimes I felt that connection was unstable. (I have not tried active cable with Eversolo). After measuring with active cable, I switched cable, but my PC coulnd't recognize SHD properly and measurement was not possible. I don't know why it was working with Eversolo...anyway I couldn't make comparison.

 

[Ghost2231]

I’ve done this before with my sub which looks really good but for the first time I tried my speakers.
Red=left
Green=right
Blue=center

What in the world is going on after 8K?
Sub off but speakers going to 20hz?
Did I do something wrong?

 

[Chromatischism]

That is a very strange response. Looks more like a stock chart than a speaker measurement.

 

[Ghost2231]

That is a very strange response. Look more like a stock chart than a speaker measurement.

You and I have very different stocks. Mine only go down, never up :-(
I’m really confused overall, I knew there was going to be a suckout from SBIR though I was hoping for around 400hz not 200 but I am thinking of 4” acoustic panels behind the speakers to level it out some.
That skyrocket at the end, not a clue.

 

[Ramon Cota]

32 Hz boom is already expected from Room simulation. 50Hz null somehow also as well.

thanks for the confirming sim , now i have certainty that room i live in is indeed cursed
btw it is a nice software, what is its name ?

 

[HiMu]

thanks for the confirming sim , now i have certainty that room i live in is indeed cursed
btw it is a nice software, what is its name ?

Built in Room simulation of REW

 

[Ramon Cota]

lol i should have known that