Official Rythmik Audio Subwoofer thread - Page 445 - AVS Forum
Forum Jump: 
 103Likes
Reply
 
Thread Tools
post #13321 of 17005 Old 01-20-2014, 01:07 PM
Advanced Member
 
qguy's Avatar
 
Join Date: Dec 2008
Posts: 935
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 23 Post(s)
Liked: 61
Congrats !!!

BTW, I just read in another thread that a sub (NOT RYTHMIK) has goen missing, from what I gather it was either delivered to the wrong address or someone was waiting for Fedex van to arrive and received the sub when the owner was not around.

Quote:
Originally Posted by t76turbo View Post

I said hell with it and placed the order last night online for a single fv15hp.

Now comes the wait. The velodyne will be moved to a very small room with the ps3 to replace a klipsch sub that I think just failed because of a bad amp (capacitors I guess).
qguy is online now  
Sponsored Links
Advertisement
 
post #13322 of 17005 Old 01-20-2014, 04:11 PM
Member
 
klh1790's Avatar
 
Join Date: Jun 2013
Location: San Diego
Posts: 113
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 15
Quote:
Originally Posted by Ozzie Isaac View Post

Just watched first 3 minutes of The Wolverine. The A-Bomb scene is insane.

1 FV15HP on -15 MV made me think my house was going to come down. It was awesome!!

Kids came running down yelling dishes were falling upstairs and I needed to stop it.

Very cool that such an articulate well behaved sub can get so crazy.

I can't wait to do that. Ordering one next week to replace a DT Supercube I. Elysium might be the first movie though. Tons of LFE that my SC1 just can't reach.
klh1790 is online now  
post #13323 of 17005 Old 01-20-2014, 07:31 PM
AVS Special Member
 
Cowboys's Avatar
 
Join Date: Jun 2012
Posts: 1,346
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Liked: 106
Quote:
Originally Posted by Cowboys View Post

I recommend you to try this method to flatten the graph@ the crossover point if you don't know about it already.
http://www.avsforum.com/attachments/74825

Per this article, it makes lots of sense and here is my result from following the article


I get some work to do @ the crossover point (80hz) but it is fun stuff.

I was able to play and change my Audyssey subs distances resulting in a much smoother response at my 80hz crossover point (Yeap, got rid of that huge 15db plus dip). Here is the proof:
Green: Center speaker and subs measurement with subs distances as set by Audyssey
Blue: Center and subs measurement with subs distances reduced by 2.6' for each sub.
Dark gray: Subs only measurement set by Audyssey
Pink: Subs only measurement after each sub distance being reduced by 2.6' from Audyssey setting.

Cowboys is offline  
post #13324 of 17005 Old 01-20-2014, 09:11 PM
Advanced Member
 
aboroth00's Avatar
 
Join Date: Mar 2007
Location: Garden Grove, CA
Posts: 622
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 3 Post(s)
Liked: 21
Quote:
Originally Posted by Cowboys View Post

I was able to play and change my Audyssey subs distances resulting in a much smoother response at my 80hz crossover point (Yeap, got rid of that huge 15db plus dip). Here is the proof:
Green: Center speaker and subs measurement with subs distances as set by Audyssey
Blue: Center and subs measurement with subs distances reduced by 2.6' for each sub.
Dark gray: Subs only measurement set by Audyssey
Pink: Subs only measurement after each sub distance being reduced by 2.6' from Audyssey setting.


Looking good! That phase cancellation seems pretty much gone. I assume Audyssey lets you adjust the sub distances independently so you can adjust phase independently?
aboroth00 is offline  
post #13325 of 17005 Old 01-20-2014, 09:43 PM
AVS Special Member
 
Cowboys's Avatar
 
Join Date: Jun 2012
Posts: 1,346
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Liked: 106
^^ yes. Thanks much.
dlozy likes this.
Cowboys is offline  
post #13326 of 17005 Old 01-21-2014, 12:00 AM
AVS Special Member
 
Cowboys's Avatar
 
Join Date: Jun 2012
Posts: 1,346
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Liked: 106
And for you, Bee- 1/6 smoothing comparing subs distances set by Audyssey and subs distances tweak for my Center and subs.
Pink: Audyssey distances subs setting
Green: Tweaked subs distances smile.gif

Cowboys is offline  
post #13327 of 17005 Old 01-21-2014, 04:38 AM
 
BeeMan458's Avatar
 
Join Date: Jun 2012
Location: Magalia, CA
Posts: 8,374
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 801
Very nice. When I tweak the subwoofer distances, our location, we get little to no change. I'm envious. Again, very nice.

How does it sound when listening to a blu-ray disc?

When the new blu-ray player is installed, I'll do some more playing with graphs and check out the distance setting for the center channel.
BeeMan458 is offline  
post #13328 of 17005 Old 01-21-2014, 05:36 AM
AVS Special Member
 
Brian Fineberg's Avatar
 
Join Date: Feb 2002
Posts: 3,615
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 454 Post(s)
Liked: 698
damn I wish i could move one of my subs off the front wall...I mean Im pretty flat, but nothing like that cowboys!!!

Panasonic 65VT30 | Panasonic AE8000 HD PJ | Denon x4100 ATMOS 5.2.4| Emotiva XPA-5 | PSA MT110 x 3 FL/C/FR | PSB B4's | DUAL PSA XS30 | OPPO 103 | minidsp | Buttkicker LFE

the SadieMax HT build thread - my first build
Brian Fineberg is online now  
post #13329 of 17005 Old 01-21-2014, 06:11 AM
AVS Special Member
 
Cowboys's Avatar
 
Join Date: Jun 2012
Posts: 1,346
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Liked: 106
^^ and the tactile feeling with one in the back is insane. I had good tactile feeling with both subs up front as I am on suspended floor but I have a lot more now plus as you said, a flatter graph with one front and one back. Thanks.
Cowboys is offline  
post #13330 of 17005 Old 01-21-2014, 07:01 AM
AVS Special Member
 
Brian Fineberg's Avatar
 
Join Date: Feb 2002
Posts: 3,615
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 454 Post(s)
Liked: 698
Quote:
Originally Posted by Cowboys View Post

^^ and the tactile feeling with one in the back is insane. I had good tactile feeling with both subs up front as I am on suspended floor but I have a lot more now plus as you said, a flatter graph with one front and one back. Thanks.

yeah I'm sure as I was doing a couple measurements last night to try the sub distance tweak (which was quickly nixed by the wife as she had a migraine upstairs) and I was sitting next to one of the subs and HOLY crap!!! like you said....i get tons of tactile feel now with my suspended floor but near field is INSANE!

Panasonic 65VT30 | Panasonic AE8000 HD PJ | Denon x4100 ATMOS 5.2.4| Emotiva XPA-5 | PSA MT110 x 3 FL/C/FR | PSB B4's | DUAL PSA XS30 | OPPO 103 | minidsp | Buttkicker LFE

the SadieMax HT build thread - my first build
Brian Fineberg is online now  
post #13331 of 17005 Old 01-21-2014, 07:10 AM
Senior Member
 
ahmedreda's Avatar
 
Join Date: Nov 2008
Posts: 496
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 45 Post(s)
Liked: 44
How far is the back sub from the listening position?
Quote:
Originally Posted by Cowboys View Post

^^ and the tactile feeling with one in the back is insane. I had good tactile feeling with both subs up front as I am on suspended floor but I have a lot more now plus as you said, a flatter graph with one front and one back. Thanks.
ahmedreda is online now  
post #13332 of 17005 Old 01-21-2014, 08:29 AM
AVS Special Member
 
Cowboys's Avatar
 
Join Date: Jun 2012
Posts: 1,346
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Liked: 106
^^ 7.6 feet from MLP (not really nearfield) but it is directly behind my 4 seats recliner with the front driver about a foot firing toward one of the 4 seats (not my seat or my MLP)
As you can see from the picture, my seat is where the mic stand is.

Cowboys is offline  
post #13333 of 17005 Old 01-21-2014, 08:33 AM
AVS Special Member
 
Cowboys's Avatar
 
Join Date: Jun 2012
Posts: 1,346
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Liked: 106
Quote:
Originally Posted by Brian Fineberg View Post

HOLY crap!!! like you said....i get tons of tactile feel now with my suspended floor but near field is INSANE!
HOLY crap is right smile.gifsmile.gifsmile.gif
I was watching the first 30 minutes of that Ninja shadow of a tear last night at -15MV and it kicked my butt hard. Not sure if I ever can stand listening at reference with this set up frown.gif
Cowboys is offline  
post #13334 of 17005 Old 01-21-2014, 08:42 AM
AVS Special Member
 
Cowboys's Avatar
 
Join Date: Jun 2012
Posts: 1,346
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Liked: 106
Quote:
Originally Posted by BeeMan458 View Post

Very nice. When I tweak the subwoofer distances, our location, we get little to no change.
Make sure you completely back out of your Denon menu after changing subs distances for the changes to take effect. Lots of people in the REW thread didn't know about this; therefore, no changes after measuring. Your REW graph should change quite a bit after changing subs distances by a foot or two.
Cowboys is offline  
post #13335 of 17005 Old 01-21-2014, 08:42 AM
 
BeeMan458's Avatar
 
Join Date: Jun 2012
Location: Magalia, CA
Posts: 8,374
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 801
Quote:
Originally Posted by Cowboys View Post

Green: Tweaked subs distances smile.gif

What are you doing when you tweak the subwoofer distances. When I tweak the subwoofer distances a few feet, nothing to very little happens and when something does happen, it's to the bad, not the good.
BeeMan458 is offline  
post #13336 of 17005 Old 01-21-2014, 08:44 AM
 
BeeMan458's Avatar
 
Join Date: Jun 2012
Location: Magalia, CA
Posts: 8,374
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 801
Quote:
Make sure you completely back out of your Denon menu after changing subs distances for the changes to take effect. Lots of people in the REW thread didn't know about this; therefore, no changes after measuring. Your REW graph should change quite a bit after changing subs distances by a foot or two.

Not arguing, I back out of what ever menu I'm fussing with, and REW shows changes taking place. I'll try backing out of the menu system completely and see what takes place.
BeeMan458 is offline  
post #13337 of 17005 Old 01-21-2014, 08:52 AM
AVS Special Member
 
Cowboys's Avatar
 
Join Date: Jun 2012
Posts: 1,346
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Liked: 106
Quote:
Originally Posted by BeeMan458 View Post

What are you doing when you tweak the subwoofer distances. When I tweak the subwoofer distances a few feet, nothing to very little happens and when something does happen, it's to the bad, not the good.
I suggest you read this link I posted earlier
http://www.avsforum.com/attachments/74825
In my case, I was able to achieve my posted graph by reducing each sub distance by 2.6'. YMMV.
Quote:
Originally Posted by BeeMan458 View Post

Not arguing, I back out of what ever menu I'm fussing with, and REW shows changes taking place. I'll try backing out of the menu system completely and see what takes place.
Then should be fine then. I just have to back out to where it says manual setting.
Cowboys is offline  
post #13338 of 17005 Old 01-21-2014, 09:27 AM
 
BeeMan458's Avatar
 
Join Date: Jun 2012
Location: Magalia, CA
Posts: 8,374
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 801
Quote:
Originally Posted by Cowboys View Post

I suggest you read this link I posted earlier
http://www.avsforum.com/attachments/74825

Thanks for reposting the link. On antihistamines, the last thing my brain wants to do, is work.

...tongue.gif
BeeMan458 is offline  
post #13339 of 17005 Old 01-21-2014, 11:53 AM
AVS Special Member
 
Cowboys's Avatar
 
Join Date: Jun 2012
Posts: 1,346
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Liked: 106
One other thing I noticed was when setting to 14/lo and run Audessey, REW graph shows roll of at about 15hz. Flip it to 14/hi and redo Audyssey calibration, REW graph shows roll off about 10hz. At least in my room, that is what it behaves. Anyone notices that?
Cowboys is offline  
post #13340 of 17005 Old 01-21-2014, 12:05 PM
 
BeeMan458's Avatar
 
Join Date: Jun 2012
Location: Magalia, CA
Posts: 8,374
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 801
Quote:
Originally Posted by Cowboys View Post

One other thing I noticed was when setting to 14/lo and run Audessey, REW graph shows roll of at about 15hz. Flip it to 14/hi and redo Audyssey calibration, REW graph shows roll off about 10hz. At least in my room, that is what it behaves. Anyone notices that?

We have roll off at 12.40 Hz. Our room has pretty much, zero gain.
BeeMan458 is offline  
post #13341 of 17005 Old 01-21-2014, 12:08 PM
AVS Special Member
 
Cowboys's Avatar
 
Join Date: Jun 2012
Posts: 1,346
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Liked: 106
^^ with 14/hi setting?
Cowboys is offline  
post #13342 of 17005 Old 01-21-2014, 12:11 PM
 
BeeMan458's Avatar
 
Join Date: Jun 2012
Location: Magalia, CA
Posts: 8,374
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 801
Quote:
Originally Posted by Cowboys View Post

^^ with 14/hi setting?

Yes. Just checked, 14/HI.

Room is 23' long by 15' wide, cathedral ceiling, a 10' average height, with large openings to other spaces that are large enough to extend the measurements, which would further guarantee limited chance of room gain.

Currently in the process of adding a universal blu-ray player to the system that hopefully will expand the dynamic range of the reference level play of the sound system. Once up and running, I'll do more measurements and regarding distance settings, see if what you suggest, aids the measurement graph.

-
BeeMan458 is offline  
post #13343 of 17005 Old 01-21-2014, 01:21 PM
AVS Special Member
 
dominguez1's Avatar
 
Join Date: Dec 2008
Posts: 1,888
Mentioned: 5 Post(s)
Tagged: 0 Thread(s)
Quoted: 133 Post(s)
Liked: 210
Quote:
Originally Posted by BeeMan458 View Post


We have roll off at 12.40 Hz. Our room has pretty much, zero gain.

Did your new receiver fix the early rolloff challenge you were having before? I believe you were rolling off at the 17hz range?

 

Have you posted your latest response? Curious more than anything. :)

dominguez1 is online now  
post #13344 of 17005 Old 01-21-2014, 04:10 PM
 
BeeMan458's Avatar
 
Join Date: Jun 2012
Location: Magalia, CA
Posts: 8,374
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 801
Quote:
Originally Posted by dominguez1 View Post

Did your new receiver fix the early rolloff challenge you were having before? I believe you were rolling off at the 17hz range?

Have you posted your latest response? Curious more than anything. smile.gif

Yes, it seems the Anti-Mode 8033S II was the culprit regarding the early roll off. Unsmoothed graph below. At -6dB down from peak reading @ 30Hz, we're getting a room measurement of 11.31Hz.



Currently installing a new universal blu-ray player. Tomorrow, I'll play with the settings some more. Once finished with setup, I'll do a proper tape measure measurement of our living room for cubic footage and submit our room/system measurements to your ULF thread and apply for honorary membership listing. biggrin.gif

-
BeeMan458 is offline  
post #13345 of 17005 Old 01-21-2014, 04:41 PM
AVS Special Member
 
dominguez1's Avatar
 
Join Date: Dec 2008
Posts: 1,888
Mentioned: 5 Post(s)
Tagged: 0 Thread(s)
Quoted: 133 Post(s)
Liked: 210
Quote:
Originally Posted by BeeMan458 View Post


Yes, it seems the Anti-Mode 8033S II was the culprit regarding the early roll off. Unsmoothed graph below. At -6dB down from peak reading @ 30Hz, we're getting a room measurement of 11.31Hz.



Currently installing a new universal blu-ray player. Tomorrow, I'll play with the settings some more. Once finished with setup, I'll do a proper tape measure measurement of our living room for cubic footage and submit our room/system measurements to your ULF thread and apply for honorary membership listing. biggrin.gif

-

Very nice bee! Congrats!

 

So, were you able to tell a difference in sound between this one and the early rolloff response? Or were they actually the same response, but antimode was masking the true response graphically?

dominguez1 is online now  
post #13346 of 17005 Old 01-21-2014, 05:05 PM
 
BeeMan458's Avatar
 
Join Date: Jun 2012
Location: Magalia, CA
Posts: 8,374
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 801
Quote:
Originally Posted by dominguez1 View Post

Very nice bee! Congrats!

Thanks! biggrin.gif

Quote:
So, were you able to tell a difference in sound between this one and the early rolloff response? Or were they actually the same response, but antimode was masking the true response graphically?

Anti-Mode wasn't masking the response, it was mechanically cutting it off with a 24dB roll off at 20Hz.

XT w/Anti-Mode:



XT32, no Anti-Mode:



To the right of the roll off, pretty much the same but a huge difference in low frequency rumble to the left of the original roll off.
BeeMan458 is offline  
post #13347 of 17005 Old 01-21-2014, 08:04 PM
AVS Special Member
 
Brian Fineberg's Avatar
 
Join Date: Feb 2002
Posts: 3,615
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 454 Post(s)
Liked: 698
after much tweaking tonight this is as flat as i can get her:


Panasonic 65VT30 | Panasonic AE8000 HD PJ | Denon x4100 ATMOS 5.2.4| Emotiva XPA-5 | PSA MT110 x 3 FL/C/FR | PSB B4's | DUAL PSA XS30 | OPPO 103 | minidsp | Buttkicker LFE

the SadieMax HT build thread - my first build
Brian Fineberg is online now  
post #13348 of 17005 Old 01-21-2014, 08:31 PM
AVS Special Member
 
Cowboys's Avatar
 
Join Date: Jun 2012
Posts: 1,346
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Liked: 106
^^ can you post the graph before tweaking. That dip at your crossover is still there. What are the subs distances before and after tweak. Is this graph with minidsp engaged?
Cowboys is offline  
post #13349 of 17005 Old 01-21-2014, 08:39 PM
AVS Special Member
 
Brian Fineberg's Avatar
 
Join Date: Feb 2002
Posts: 3,615
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 454 Post(s)
Liked: 698
No. I deleted them. :/

The subs were at 17.2 and 17.0

I tried all different distances and 14.2 and 14.0 was the best and yes dsp is engaged

Like I said before this tweak doesn't do much for my situation. Oh well

Panasonic 65VT30 | Panasonic AE8000 HD PJ | Denon x4100 ATMOS 5.2.4| Emotiva XPA-5 | PSA MT110 x 3 FL/C/FR | PSB B4's | DUAL PSA XS30 | OPPO 103 | minidsp | Buttkicker LFE

the SadieMax HT build thread - my first build
Brian Fineberg is online now  
post #13350 of 17005 Old 01-22-2014, 08:57 AM
AVS Special Member
 
Cowboys's Avatar
 
Join Date: Jun 2012
Posts: 1,346
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Liked: 106
I posted the following in the REW thread but want to post it here as well.
I just want to give my opinion after following the Audyssey subs distances tweak as I was finally able to watch a couple movies. I did two tweaks/changes to my system: 1. Move one sub to right back room corner and leave the other one upfront toward the center of room instead of having both upfront by my main. 2. Follow the Audyssey subs distance tweak with great success. My room now is energized/pressurized with lots of great bass that cannot be localized and I now do have a lot more of the tactile feeling. Before, I can tell that my bass was front heavy. I really do enjoy my system much more than I ever had. I truly believe this great result is from both of my subs placement changes and the distances tweak, and perhaps also with the close mics Audyssey cal patterns (within 3" from MLP). For the first time I can say that I have graphs to back my statement up smile.gif. Dialogue is easy to hear without having to bump it up 2-3db like before. Front three blends so much nicer with my subs now; perhaps the reason for unlocalized bass regardless of having one sub kind of nearfield (as compared to before). I was afraid of being able to locate the sub near me, but I swear I could not (I was even looking at it from my LP). I usually listen at -10 MV but had to reduce to -15 as it was loud with strong deep bass coming from everywhere in my ~2600 ft^3 seal room. One more thing: Dual FV15hps ROCKs down to 10hz in my room with AUTHORITY - absolutely cannot be happier. smile.gifsmile.gifsmile.gif. And yes I listened to dual Captivators, 8 18" SI seal (at two different places), and three Triaxes at four different occasions so I kind of know how my dual stands up against the big boys.

Before:


After:




All graphs are unsmooth except where noted.

Subs only. Pink: before, Blue: after


1/6 smoothing of the above: Red: before, Green: after


Center and subs. Red: before tweak, Green: after tweak, Dark gray: subs only
Cowboys is offline  
Reply Subwoofers, Bass, and Transducers

Tags
Rythmik , Rythmik Audio , Rythmik Audio F12 Direct Servo Subwoofer , Rythmik Audio F15 Subwoofer

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page


Forum Jump: 

Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off