Official Rythmik Audio Subwoofer thread - Page 823 - AVS Forum | Home Theater Discussions And Reviews
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post #24661 of 24680 Old Yesterday, 06:38 PM
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Picking up my two FM8s tomorrow afternoon. Looking forward to see what they do to mid bass. Still trying to decide on final bookshelf selections, but initially will be running stereo F15HPs, FM8s, and Klipsch RP-160Ms. Going to be interesting to see how much dorking around it takes with REW to get decent curves, but hoping for some nice 50-150ish Hz slam from the FM8s.
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post #24662 of 24680 Old Yesterday, 07:25 PM
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Originally Posted by budeliao View Post
Picking up my two FM8s tomorrow afternoon. Looking forward to see what they do to mid bass. Still trying to decide on final bookshelf selections, but initially will be running stereo F15HPs, FM8s, and Klipsch RP-160Ms. Going to be interesting to see how much dorking around it takes with REW to get decent curves, but hoping for some nice 50-150ish Hz slam from the FM8s.
How are you planning to tie in the mid-bass (FM8) with the Klipsch RP-160M and subs? Does your receiver/pre/pro allow active electronic crossover selection/pre-outs for your setup?

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post #24663 of 24680 Old Today, 05:31 AM
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Ok, so I ALMOST have my sub sounding great. This is what I did.

I moved it back to the original location which is left of the front stage, 4 feet from the left wall and now only 13 inches from the back wall. I looked at the phase control on my sub and noticed it was set to 90. I turned it to 0 and the volume to 50%. I turned DynEQ on and reran the Audyssey setup. The first pass it didnt find my sub. This is odd because previously I never received this message and it automatically set my sub to -12db, which I think was the main issue. The second pass my sub was found and I went ahead and ran through all 8 tests. I have a camera tripod, so I was able to get the perfect height on each location. After setup, I checked all the settings. My list is from memory. There may be some things I forgot.

Sub is now at -3.5 db (much better)
Crossover says 80hz for everything except the surrounds. They are set to 60hz. Is this odd to have those different?
All speakers were set to SMALL.

My test scene is always the campus scene on The Incredible Hulk. The bass was much more noticeable and pressurized my room quite well without any further tweaks past what I listed above. When I find some more time this weekend, Im going to follow some other suggestions about pushing the DB a bit more etc.
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post #24664 of 24680 Old Today, 06:32 AM
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How are you planning to tie in the mid-bass (FM8) with the Klipsch RP-160M and subs? Does your receiver/pre/pro allow active electronic crossover selection/pre-outs for your setup?
Still trying to figure out the final solution, but will start with F15HPs on LFE, L and R pre-outs thru external analog x-over to Adcom GFA-555 driving the RP-160Ms and the FM8s. If I can get satisfactory sound I will look at a miniDSP solution. I'm not so keen on putting signals thru A/D-D/A, but reading your posts that seems to be working well in your setup.

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post #24665 of 24680 Old Today, 06:44 AM
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Originally Posted by thinksmartpc View Post
Ok, so I ALMOST have my sub sounding great. This is what I did.

I moved it back to the original location which is left of the front stage, 4 feet from the left wall and now only 13 inches from the back wall. I looked at the phase control on my sub and noticed it was set to 90. I turned it to 0 and the volume to 50%. I turned DynEQ on and reran the Audyssey setup. The first pass it didnt find my sub. This is odd because previously I never received this message and it automatically set my sub to -12db, which I think was the main issue. The second pass my sub was found and I went ahead and ran through all 8 tests. I have a camera tripod, so I was able to get the perfect height on each location. After setup, I checked all the settings. My list is from memory. There may be some things I forgot.

Sub is now at -3.5 db (much better)
Crossover says 80hz for everything except the surrounds. They are set to 60hz. Is this odd to have those different?
All speakers were set to SMALL.

My test scene is always the campus scene on The Incredible Hulk. The bass was much more noticeable and pressurized my room quite well without any further tweaks past what I listed above. When I find some more time this weekend. Im going to follow some other suggestions about pushing the DB a bit more etc.
Glad to hear it
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post #24666 of 24680 Old Today, 06:49 AM
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At this point I am seriously thinking I inadvertently did some damage to my LV12R at the beginning of Edge of Tomorrow. It's rattling quite a bit now during MCACC, sweeps (even at -22db and MCACC EQ at -6db on receiver), and during movie watching at much lower volumes than i was before during LFE parts. Am I SOL or what?

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post #24667 of 24680 Old Today, 07:27 AM
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Originally Posted by citsur86 View Post
At this point I am seriously thinking I inadvertently did some damage to my LV12R at the beginning of Edge of Tomorrow. It's rattling quite a bit now during MCACC, sweeps (even at -22db and MCACC EQ at -6db on receiver), and during movie watching at much lower volumes than i was before during LFE parts. Am I SOL or what?
Push the center of the cone and listen for a metallic noise. If the metallic noise is present then the driver is bad. Also, if you can, make a recording of the rattling noise and send it to me and Brian so we can listen to it and find out what the problem is.



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post #24668 of 24680 Old Today, 09:42 AM
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Originally Posted by citsur86 View Post
At this point I am seriously thinking I inadvertently did some damage to my LV12R at the beginning of Edge of Tomorrow. It's rattling quite a bit now during MCACC, sweeps (even at -22db and MCACC EQ at -6db on receiver), and during movie watching at much lower volumes than i was before during LFE parts. Am I SOL or what?
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post #24669 of 24680 Old Today, 10:14 AM
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Originally Posted by citsur86 View Post
At this point I am seriously thinking I inadvertently did some damage to my LV12R at the beginning of Edge of Tomorrow. It's rattling quite a bit now during MCACC, sweeps (even at -22db and MCACC EQ at -6db on receiver), and during movie watching at much lower volumes than i was before during LFE parts. Am I SOL or what?
What subs have you had in the past?
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post #24670 of 24680 Old Today, 10:16 AM
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What subs have you had in the past?
Just a Yamaha HTIB sub which I actually never used - just left it off.

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post #24671 of 24680 Old Today, 10:23 AM
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Originally Posted by citsur86 View Post
At this point I am seriously thinking I inadvertently did some damage to my LV12R at the beginning of Edge of Tomorrow. It's rattling quite a bit now during MCACC, sweeps (even at -22db and MCACC EQ at -6db on receiver), and during movie watching at much lower volumes than i was before during LFE parts. Am I SOL or what?
Normally I'd say I'd be suprised if you could hurt that sub but with that stupid scene/intro anything is possible.

It's kinda cool I guess to demo but that intro is just plain stupid and dangerous.

120db at 10hz cmon......

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post #24672 of 24680 Old Today, 10:26 AM
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Normally I'd say I'd be suprised if you could hurt that sub but with that stupid scene/intro anything is possible.

It's kinda cool I guess to demo but that intro is just plain stupid and dangerous.

120db at 10hz cmon......
Completely agree! Like why the heck would they put that stupid tone in there when it can ruin expensive equipment?! Maybe I shouldn't have been running the sub as hot as i was, but I had watched a whole bunch of movies known for LFE up until that point with no problem, so how would I know that some random tone that plays, before the movie even starts mind you, would blow a fuse and damage my sub. Not 100% at this point whether it's damaged, but I am thinking it is. The rattles its making were NOT there before this happened. https://1drv.ms/u/s!AqCwvEUzj5tPn2oZ6-DggICC5QIY"]Listen here.

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post #24673 of 24680 Old Today, 11:29 AM
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Originally Posted by citsur86 View Post
Completely agree! Like why the heck would they put that stupid tone in there when it can ruin expensive equipment?! Maybe I shouldn't have been running the sub as hot as i was, but I had watched a whole bunch of movies known for LFE up until that point with no problem, so how would I know that some random tone that plays, before the movie even starts mind you, would blow a fuse and damage my sub. Not 100% at this point whether it's damaged, but I am thinking it is. The rattles its making were NOT there before this happened. https://1drv.ms/u/s!AqCwvEUzj5tPn2oZ6-DggICC5QIY"]Listen here.
Ya if I'm hearing that correctly something definatly sounds off.

That's another problem with that scene is that it's right at the beginning with no warning of how loud it will be.

Don't blame it on the lv12r as it is one heck of a sub! Could happen to any subwoofer.

I played my lv12r a couple weeks ago pretty hard. All the sudden I heard a bunch of rattling and thought something blew. Turns out an old popcorn kernel got in there somehow.

Anyway it might sound silly and idk if you have kids but make sure nothing got into the port

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post #24674 of 24680 Old Today, 11:39 AM
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Originally Posted by citsur86 View Post
Completely agree! Like why the heck would they put that stupid tone in there when it can ruin expensive equipment?! Maybe I shouldn't have been running the sub as hot as i was, but I had watched a whole bunch of movies known for LFE up until that point with no problem, so how would I know that some random tone that plays, before the movie even starts mind you, would blow a fuse and damage my sub. Not 100% at this point whether it's damaged, but I am thinking it is. The rattles its making were NOT there before this happened. https://1drv.ms/u/s!AqCwvEUzj5tPn2oZ6-DggICC5QIY"]Listen here.
I listened to it, same for Brian and we agree that it could be also the amp. The fact that the amp blew a fuse during that scene is an indication that something went wrong with the amp. If you push the driver cone and there is no rattling noise then most probably is the amp. You can also check inside to see if there is a loose wire touching the braces. We cover the wires with polyfill but sometimes the polyfill get loose and the wires touch the braces or even the back of the cone making that kind of weird noises, most after a scene like the one from EOT. Feel free to take the driver out of the box and check inside. You can also test the driver with your front speakers wires and if you get sound with no rattling then the driver is fine.



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post #24675 of 24680 Old Today, 11:43 AM
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I listened to it, same for Brian and we agree that it could be also the amp. The fact that the amp blew a fuse during that scene is an indication that something went wrong with the amp. If you push the driver cone and there is no rattling noise then most probably is the amp. You can also check inside to see if there is a lose wire touching the braces. We cover the wires with polyfill but sometimes the polyfill get lose and the wires touch the braces or even the back of the cone making that kind of weird noises, most after a scene like the one from EOT. Feel free to take the driver out of the box and check inside. You can also test the driver with your front speakers wires and if you get sound with no rattling then the driver is fine.
I'll do this as soon as I get home. The Amp didn't blow a fuse, the subwoofer did. Where you plug the power into the back of the subwoofer, I found that little compartment under it and when i pulled it out I saw that it was that Fuse that was blown. I noticed this yesterday as I was about to take the back off to look at the driver. I had a bunch of screws out at this point. I actually never took the back off because I noticed this compartment and the blown fuse before I got all the screws out. Come to think of it, a couple of the smaller middle screws did not "catch" when i tried to put them back in, the ones around the outside of the back plate definitely did, so the plate is definitely secure. Any idea why those middle screws felt like they were just turning in place when I tried to screw them back in?

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post #24676 of 24680 Old Today, 11:48 AM
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The Amp didn't blow a fuse, the subwoofer did.
You should pm him or, even better, talk on the phone
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post #24677 of 24680 Old Today, 11:49 AM
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You should pm him or, even better, talk on the phone
Sure - was writing it here in case others were able to help as well, but I can take it offline from this thread.

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post #24678 of 24680 Old Today, 11:58 AM
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Originally Posted by enricoclaudio View Post
I listened to it, same for Brian and we agree that it could be also the amp. The fact that the amp blew a fuse during that scene is an indication that something went wrong with the amp. If you push the driver cone and there is no rattling noise then most probably is the amp. You can also check inside to see if there is a lose wire touching the braces. We cover the wires with polyfill but sometimes the polyfill get lose and the wires touch the braces or even the back of the cone making that kind of weird noises, most after a scene like the one from EOT. Feel free to take the driver out of the box and check inside. You can also test the driver with your front speakers wires and if you get sound with no rattling then the driver is fine.
I'll do this as soon as I get home. The Amp didn't blow a fuse, the subwoofer did. Where you plug the power into the back of the subwoofer, I found that little compartment under it and when i pulled it out I saw that it was that Fuse that was blown. I noticed this yesterday as I was about to take the back off to look at the driver. I had a bunch of screws out at this point. I actually never took the back off because I noticed this compartment and the blown fuse before I got all the screws out. Come to think of it, a couple of the smaller middle screws did not "catch" when i tried to put them back in, the ones around the outside of the back plate definitely did, so the plate is definitely secure. Any idea why those middle screws felt like they were just turning in place when I tried to screw them back in?
He's referring to the sub plate amp, not the amps in your AVR. The AVR sub pre-out doesn't power the subwoofer cone, the sub plate amp does.
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post #24679 of 24680 Old Today, 12:00 PM
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Originally Posted by citsur86 View Post
The Amp didn't blow a fuse, the subwoofer did.
You should pm him or, even better, talk on the phone
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Originally Posted by citsur86 View Post
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Originally Posted by Bond 007 View Post
You should pm him or, even better, talk on the phone
Sure - was writing it here in case others were able to help as well, but I can take it offline from this thread.
Nothing wrong with updating us of the situation here, but be sure to talk directly to Brian and Enrico so you can get this issue sorted out.
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post #24680 of 24680 Old Today, 12:12 PM
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Sure - was writing it here in case others were able to help as well, but I can take it offline from this thread.
Also this happened to be and it turned out to be the mental spike feets which are a pain in the butt because they rattle out of place if not screwed in with the strength of the hulk😂 so if anything check that to make sure.

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