Is this good bass response? - AVS Forum | Home Theater Discussions And Reviews
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post #1 of 11 Old 06-26-2020, 08:17 AM - Thread Starter
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Is this good bass response?

I see a lot of folks posting these awesome looking, flat curves going well below 20hz and just wondered how I was doing. I have two Rythmik FV25HP's.
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post #2 of 11 Old 06-26-2020, 08:22 AM
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Quote:
Originally Posted by mitchlampert View Post
I see a lot of folks posting these awesome looking, flat curves going well below 20hz and just wondered how I was doing. I have two Rythmik FV25HP's.
Those are EQ'd responses. FR is more dependent on your placement and room so you should share that info. I assume this is a non EQ'd response? Do you have a minidsp?

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post #3 of 11 Old 06-26-2020, 08:23 AM
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Quote:
Originally Posted by mitchlampert View Post
I see a lot of folks posting these awesome looking, flat curves going well below 20hz and just wondered how I was doing. I have two Rythmik FV25HP's.

It looks OK. If you are looking for advice, I would do the following:


1) Take sweeps of your subs individually using time reference setting.
2) Move a sub to every possible location and do sweeps for every orientation at each location. Sometimes a turning a sub 90 or 180 degrees in the same spot changes the response in a good way.
3) After you have a collection of individual sweeps at all the locations and orientations with time reference, you can then use REW to determine which 2 spots and orientations are likely best for you. This is done using the alignment tool within REW. You can select any two curves and simulate their combined response. You can even adjust delay for each curve separately. This tool will give you a good starting point to set the delay between the subs for best integration.
4) Then put the subs in the locations and orientated.
5) Do some final REW measurements trying different delays for each sub to make sure you find the best delay difference.
6) Then you can start EQ'ing with MiniDSP.


It will take some work but you have a good start, IMO. You will get a nice curve at the end.
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post #4 of 11 Old 06-26-2020, 08:44 AM
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i just ran audyssey again after doing some EQ-ing beforehand with minidsp. i have dual fv25hps like you. i have a few peaks to take care of but it looks like you could use some room correction with your peaks.
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post #5 of 11 Old 06-26-2020, 09:14 AM - Thread Starter
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Quote:
Originally Posted by badtlc View Post
It looks OK. If you are looking for advice, I would do the following:


1) Take sweeps of your subs individually using time reference setting.
2) Move a sub to every possible location and do sweeps for every orientation at each location. Sometimes a turning a sub 90 or 180 degrees in the same spot changes the response in a good way.
3) After you have a collection of individual sweeps at all the locations and orientations with time reference, you can then use REW to determine which 2 spots and orientations are likely best for you. This is done using the alignment tool within REW. You can select any two curves and simulate their combined response. You can even adjust delay for each curve separately. This tool will give you a good starting point to set the delay between the subs for best integration.
4) Then put the subs in the locations and orientated.
5) Do some final REW measurements trying different delays for each sub to make sure you find the best delay difference.
6) Then you can start EQ'ing with MiniDSP.


It will take some work but you have a good start, IMO. You will get a nice curve at the end.
This is what I did to achieve the curve I posted. This was after all the above and then running ARC Genesis room correction. That's why I was asking. I wanted to know how some of you get these awesome looking flat curves!
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post #6 of 11 Old 06-26-2020, 10:10 AM
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Quote:
Originally Posted by mitchlampert View Post
This is what I did to achieve the curve I posted. This was after all the above and then running ARC Genesis room correction. That's why I was asking. I wanted to know how some of you get these awesome looking flat curves!

So if you have found the two best locations that combine the best and you are sure you got the best delay settings, the next step is EQ within MiniDSP. Once you get them good with MiniDSP your ARC will give you better results most likely.
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post #7 of 11 Old 06-26-2020, 02:09 PM
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Quote:
Originally Posted by mitchlampert View Post
This is what I did to achieve the curve I posted. This was after all the above and then running ARC Genesis room correction. That's why I was asking. I wanted to know how some of you get these awesome looking flat curves!
Most folks with nice flat curves are doing it with a MiniDSP and REW and a mic like a UMIK-1... That's how I did it.

**edited to add the before EQ graph**
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post #8 of 11 Old 06-26-2020, 09:37 PM
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I'm quite lucky in my current room that I get a fairly flat response with just Audyssey XT32, I can probably flatten this out a bit more with y miniDSP, but can't be bothered at the moment


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post #9 of 11 Old 06-26-2020, 10:01 PM
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Quote:
Originally Posted by jamiebosco View Post
I'm quite lucky in my current room that I get a fairly flat response with just Audyssey XT32, I can probably flatten this out a bit more with y miniDSP, but can't be bothered at the moment

You should pick up minidsp just for BEQ alone!
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post #10 of 11 Old 06-26-2020, 11:45 PM
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Originally Posted by ereed View Post
You should pick up minidsp just for BEQ alone!
I have one, have had it for a few months now, I just can't be bothered using it
I really just watch movies for the movie itself, audio/bass is just the cherry on top (so to speak) I also watch a lot of my movies between 12am - 5am so deep bass isn't always needed at my place.

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post #11 of 11 Old 06-27-2020, 11:01 AM
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Quote:
Originally Posted by jamiebosco View Post
I have one, have had it for a few months now, I just can't be bothered using it
I really just watch movies for the movie itself, audio/bass is just the cherry on top (so to speak) I also watch a lot of my movies between 12am - 5am so deep bass isn't always needed at my place.
Then get Crowson's and watch with BEQ, no excuses
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