Official Rythmik Audio Subwoofer thread - Page 739 - AVS Forum | Home Theater Discussions And Reviews
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post #22141 of 24393 Old 12-12-2015, 06:50 PM
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^^ yes if it is still working.
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post #22142 of 24393 Old 12-12-2015, 10:41 PM
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Quote:
Originally Posted by tvuong View Post
I am using flat with Dyneq off. I just bump my subs additional 6db hotter to compensate for Dyneq bass boost at my -15MV. Most folks when turning off Dyneq for the first time do not like it as it seems to suck all the bass out of it but if you give it a listen with dyneq off for a week or two with additional bass boost, you will like it better as it is clearer and cleaner without not just subs but speakers as well. Remember Dyneq not only boosts bass but also treble as your MV is lower which is also why I use Flat as Aud Ref rolls off high frequency.
YMMV.
One tip for boosting the sub level like that:
Run all speakers with the same crossover frequency, or else you can end up with different frequency response for different speakers.
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post #22143 of 24393 Old 12-13-2015, 05:57 AM
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Originally Posted by MIX_MASTER_ICE View Post
$650 for a 4 year old Rythmik FV15HP worth it? I really don't need it, but it seems like a really great deal. In like new condition.
its a good deal. Just make sure u check carefully whether the driver is ok. e.g. any signs of bottomed out or funny sound from driver when u play movie scenes loud with subsonic low bass (below 30hz)

Last edited by sevenz; 12-13-2015 at 06:04 AM.
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post #22144 of 24393 Old 12-13-2015, 06:01 AM
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Quote:
Originally Posted by tvuong View Post

Flat for everything.

I am using flat with Dyneq off. I just bump my subs additional 6db hotter to compensate for Dyneq bass boost at my -15MV. Most folks when turning off Dyneq for the first time do not like it as it seems to suck all the bass out of it but if you give it a listen with dyneq off for a week or two with additional bass boost, you will like it better as it is clearer and cleaner without not just subs but speakers as well. Remember Dyneq not only boosts bass but also treble as your MV is lower which is also why I use Flat as Aud Ref rolls off high frequency.
YMMV.
thanks bro. Could u share what was the difference in impression when u used flat vs ref/audyssey? And can u share if your setup in a treated room and living room?

Mine's in a untreated living room, size abt 4300 cubic feet

This is interesting with DynEQ, i shall try this.... =)

Last edited by sevenz; 12-13-2015 at 06:06 AM.
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post #22145 of 24393 Old 12-13-2015, 08:03 AM
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Originally Posted by BDP24 View Post
Damn, you subs-for-movies guys like it loud! I played music pretty loud when I was younger, partly I think in an attempt to "break through" the veiling/translucency/low resolution of most Hi-Fi back then (especially loudspeakers, like the Acoustic Research I owned. I had yet to hear an electrostatic, which changed everything). Plus, I was seeing Bands like The Who (with Keith Moon) and The Jimi Hendrix Experience live, with those stacks of Marshall or Hi-Watt amps and speakers. Jimi and Noel both had three stacks each at Winterland---Clapton and Bruce only two at The Fillmore, the wusses ;-).
OT - Damn! I wish I could have been there. Too young. Zappa said Jimi played so loud it's like it wasn't even sound anymore, something more physical.

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post #22146 of 24393 Old 12-14-2015, 12:12 AM
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Originally Posted by davidbeinct View Post
OT - Damn! I wish I could have been there. Too young. Zappa said Jimi played so loud it's like it wasn't even sound anymore, something more physical.

Yeah, Jimi was loud, but it wasn't just that. Bill Graham was the first concert promoter who had a really good sound system, and he played it loud enough to vibrate your bones! I would go home with my ears ringing like crazy and everything sounding muffled. I'm surprised my tinnitus isn't far worse! His competition was Chet Helms and The Family Dog (a bunch of hippies), who ran The Carousel Ballroom in San Francisco. That's where I saw The Who twice, the "A Quick One" tour in '68, and "Tommy" in '69. Now THERE was a physical band---I could feel Keith's kick drums pounding my chest! He played so hard I don't think he needed to be mic'ed!! And his eyes---he looked possessed. A complete madman.

Last edited by BDP24; 12-14-2015 at 05:59 PM.
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post #22147 of 24393 Old 12-14-2015, 09:09 AM
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Quote:
Originally Posted by rcohen View Post
One tip for boosting the sub level like that:
Run all speakers with the same crossover frequency, or else you can end up with different frequency response for different speakers.
Didn't think about that as most folks are just concentrating on the front 3.

Quote:
Originally Posted by sevenz View Post
thanks bro. Could u share what was the difference in impression when u used flat vs ref/audyssey? And can u share if your setup in a treated room and living room?

Mine's in a untreated living room, size abt 4300 cubic feet

This is interesting with DynEQ, i shall try this.... =)
My room is a dedicate untreated 2500ft^3 sealed room. I like bright sound without harsh to go with thunder bass and it works with my speakers when using flat. YMMV.
Yeah, try turning Dyneq off and boost extra on bass to see if you like it also. Most of us usually thinks louder is better which is the case with dyneq on.
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post #22148 of 24393 Old 12-14-2015, 11:43 AM
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Dynamic EQ isn't about just making things louder.

Our hearing does not perceive all frequencies the same. At low volumes, it takes a bass boost and a treble boost to keep music in tonal balance. Only at high volumes does the "curve" flatten out. Dynamic EQ does this automatically based on your volume level, tapering off to zero boost by -0 MV.

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post #22149 of 24393 Old 12-15-2015, 04:01 AM
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I have an insane amount of soft boomy bass in the back corner of my HT. Any suggestions for that???
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post #22150 of 24393 Old 12-15-2015, 04:41 AM
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Originally Posted by Cain View Post
I have an insane amount of soft boomy bass in the back corner of my HT. Any suggestions for that???
1. Avoid sitting in that corner
2. Sacrifice real estate by installing lots of bass traps
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post #22151 of 24393 Old 12-15-2015, 05:51 AM
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Originally Posted by Skylinestar View Post
1. Avoid sitting in that corner
2. Sacrifice real estate by installing lots of bass traps
1) Good idea, it is already the worst seat in the house, I usually sit there for a full house.
2) I'm looking at traps... "IT's a TRAP!"
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post #22152 of 24393 Old 12-15-2015, 06:14 PM
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Spoke to a Rythmik rep today about their new sub that will be coming out. Apparently won't be released for another few months, will be in the $800 range, with a range of 14-16hz.
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post #22153 of 24393 Old 12-15-2015, 06:44 PM
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Spoke to a Rythmik rep today about their new sub that will be coming out. Apparently won't be released for another few months, will be in the $800 range, with a range of 14-16hz.
Damn, talk about a specialized sub! Usually they reach up to at least 80Hz...
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post #22154 of 24393 Old 12-15-2015, 07:28 PM
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Originally Posted by butie120 View Post
Spoke to a Rythmik rep today about their new sub that will be coming out. Apparently won't be released for another few months, will be in the $800 range, with a range of 14-16hz.
The container got delayed but it's gonna be here sooner than what I told you over the phone. I would say no later than end of January. Pictures and specifications will be posted in our website in a few days. Price is $829 shipped and introductory price is $799 shipped. Model name is LVX12.

BTW, we have 2 x LVX12 Black Oak and 2 x LVX12 Black Matte in our warehouse already. I need to ask Brian if those are available for sale already, though



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Media Room: Polk LSiM705s, LSiM706C, LSiM703s | Rythmik F12SE (x2) | Marantz SR7008 | Parasound Halo P5 | Emotiva XPA-3 & XPA-200 | Oppo 105D | Sony HW40ES |
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post #22155 of 24393 Old 12-16-2015, 05:26 AM
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The container got delayed but it's gonna be here sooner than what I told you over the phone. I would say no later than end of January. Pictures and specifications will be posted in our website in a few days. Price is $829 shipped and introductory price is $799 shipped. Model name is LVX12.

BTW, we have 2 x LVX12 Black Oak and 2 x LVX12 Black Matte in our warehouse already. I need to ask Brian if those are available for sale already, though
You guys should post some pictures here to generate buzz.

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post #22156 of 24393 Old 12-16-2015, 07:50 AM
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Just purchased a Yamaha Aventage RX-1050, Ascend Acoustics Sierra 1 for LCR and a Rythmik FV15HP. Looking for someone in the Austin, TX area that can come calibrate everything and get it sounding it's best. Anyone able to help out?
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post #22157 of 24393 Old 12-16-2015, 08:01 AM
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Just purchased a Yamaha Aventage RX-1050, Ascend Acoustics Sierra 1 for LCR and a Rythmik FV15HP. Looking for someone in the Austin, TX area that can come calibrate everything and get it sounding it's best. Anyone able to help out?
Can you post any pictures of your room? Do you have any of the gear in place and hooked up already? If so, are you simply trying to dial it in?

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post #22158 of 24393 Old 12-16-2015, 08:48 AM
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Just purchased a Yamaha Aventage RX-1050, Ascend Acoustics Sierra 1 for LCR and a Rythmik FV15HP. Looking for someone in the Austin, TX area that can come calibrate everything and get it sounding it's best. Anyone able to help out?
If you are willing to pay I can recommend someone who is a professional.
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post #22159 of 24393 Old 12-16-2015, 08:52 AM
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I believe in paying others for their work, but how much are we talking?
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post #22160 of 24393 Old 12-16-2015, 08:54 AM
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Quote:
Originally Posted by bsullivan1983 View Post
Just purchased a Yamaha Aventage RX-1050, Ascend Acoustics Sierra 1 for LCR and a Rythmik FV15HP. Looking for someone in the Austin, TX area that can come calibrate everything and get it sounding it's best. Anyone able to help out?
Can you post any pictures of your room? Do you have any of the gear in place and hooked up already? If so, are you simply trying to dial it in?
I don't have pictures yet. I can take some. I just ordered everything a couple nights ago. Probably 4-5 days out from receiving everything.
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I believe in paying others for their work, but how much are we talking?
pm sent
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post #22162 of 24393 Old 12-16-2015, 09:00 AM
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I am done tinkering the Minidsp 2x4 made everything bled so well together i don't see how it will get any better . i crossover everything at 80hz in my AVR but in the minidsp i have the sub crossed over at 70hz which made it blend smoothly compared to leaving it uncrossed or at 80hz in the minidsp plugin. funny thing i was reading on the audyssey forum last night on their website and someone said it was just internet talk to crossover the sub early and their was no science behind it.. maybe he was talking specifically about the receiver idk but it workers wonders for me and proved to be true in 5 films where in certain scenes i would totally be able to locate the sub it being 5ft away from me, this is no longer the case with my minidsp settings.



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post #22163 of 24393 Old 12-16-2015, 10:36 AM
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Hello All,

Hope you are all well.

Was watching Iron Man on Blu-ray with my new L22. Movie has crazy amounts of bass. The walls of my theater are stressing out. I put my hand on the rear wall and the dry wall is heaving in and out alarmingly, and I am not even playing the movie that loud. My theater was not built as a theater, just a room that I painted and dedicated as a theater. The walls are not reinforced for this kind of a pounding. I am fearing that the plaster is going to crack, and then my Wife will remove my head!!

Vocals are at 75db, in the fighter scene at the back of my theater the bass when the fighters fire their guns is at 105db, when the missiles explode at 111db. This is way more than I was planning on with a single L22, way more than the room can take. Had to turn it down. Getting the bass around 95db max still rattles the rear wall. Going to have to find a solution to this problem. I almost bought a FVX15, house would have been rubble...lol.

Tomorrow my Umik-1 mic gets here and I can see what the graphs say.

Later,

Tony
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post #22164 of 24393 Old 12-16-2015, 10:45 AM
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Hello All,

Hope you are all well.

Was watching Iron Man on Blu-ray with my new L22. Movie has crazy amounts of bass. The walls of my theater are stressing out. I put my hand on the rear wall and the dry wall is heaving in and out alarmingly, and I am not even playing the movie that loud. My theater was not built as a theater, just a room that I painted and dedicated as a theater. The walls are not reinforced for this kind of a pounding. I am fearing that the plaster is going to crack, and then my Wife will remove my head!!

Vocals are at 75db, in the fighter scene at the back of my theater the bass when the fighters fire their guns is at 105db, when the missiles explode at 111db. This is way more than I was planning on with a single L22, way more than the room can take. Had to turn it down. Getting the bass around 95db max still rattles the rear wall. Going to have to find a solution to this problem. I almost bought a FVX15, house would have been rubble...lol.

Tomorrow my Umik-1 mic gets here and I can see what the graphs say.

Later,

Tony
Could pulling the sub further from the corner or wall by a foot or more help? I find the further from the wall the sub is weakens the intensity somewhat but does also makes the bass cleaner and smoother sounding. You could also adjust the bass extension/damping.
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post #22165 of 24393 Old 12-16-2015, 11:43 AM
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Could pulling the sub further from the corner or wall by a foot or more help? I find the further from the wall the sub is weakens the intensity somewhat but does also makes the bass cleaner and smoother sounding. You could also adjust the bass extension/damping.
Hello Plasma,

Hope you are well.

I will be goofing with placement etc. after Mic gets here. I was thinking bringing the sub near field to reduce the volume which should reduce the unwanted house destruction...lol.

The sound of the sub is very, very nice, not boomy and so stealthy with the bass impact. I mean everything sounds so clean and real with no overhang, then when the action is gone...poof disappears again.

From front to back the room is 25ft. My seating distance is 10ft, so at my listening location it is fantastic...go to the back wall and the standing waves are immense. I did not notice the rear wall was flexing that much from my listening position, until I got up to answer the phone. Tomorrow I will get the ladder out and see what the ceiling is doing. I fear it is also flexing, house is made of cardboard...lol.

I have tried the theater mode and the music mode. I prefer the music mode, the movie mode cuts off too much of the low frequency impact for my liking. Iron Mans footsteps did not seem as deep, gunfire and missile explosions did not have their full impact. I have never heard the bullets from those aircraft sound so clean.

Sub is positioned just to the left of my center channel speaker, out about 1 foot from the screen wall. So, about 1/3 mid wall placement. Sounds really good here for music and movies at the listening position. There is one large bass trap in the left front corner of the room, I have not gotten around to making more. Corner loading the sub was too much, peaks into the 116s. and a bit boomy. I wonder how much of that DB is from the walls moving/vibrating...

Later,

Tony

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post #22166 of 24393 Old 12-16-2015, 01:07 PM
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An Auralex SubDude HT may help with that. I had the same problem with my pair of F12SEs, rattling walls and upstairs neighbors complaints. I put my subwoofers on Auralex SubDude HT and got cero complaints so far. It didn't improve extension nor SQ but at least no more rattling walls.



Enrico Castagnetti @ Rythmik Audio
Media Room: Polk LSiM705s, LSiM706C, LSiM703s | Rythmik F12SE (x2) | Marantz SR7008 | Parasound Halo P5 | Emotiva XPA-3 & XPA-200 | Oppo 105D | Sony HW40ES |
Desktop: Dynaudio BM5 mkIII | Rythmik L22 | Apogee Duet | 27" iMac|
Bedroom: B&W 685 S2 | Rythmik LVX12 | Marantz NR1606 | Emotiva XPA-200 Gen 2 | Samsung UN50JU6500 |
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post #22167 of 24393 Old 12-16-2015, 01:22 PM
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An Auralex SubDude HT may help with that. I had the same problem with my pair of F12SEs, rattling walls and upstairs neighbors complaints. I put my subwoofers on Auralex SubDude HT and got cero complaints so far. It didn't improve extension nor SQ but at least no more rattling walls.
Hello Enrico,

Hope you are well.

I don't believe a SubDude would help in my case. The sub is on carpet over cement slab foundation. Sub vibrating the floor is not going to happen...lol. At least I hope not!!

Thanks for the suggestion though.

Later,

Tony

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post #22168 of 24393 Old 12-16-2015, 01:25 PM
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Hello Enrico,

Hope you are well.

I don't believe a SubDude would help in my case. The sub is on carpet over cement slab foundation. Sub vibrating the floor is not going to happen...lol. At least I hope not!!

Thanks for the suggestion though.

Later,

Tony
Mine are on carpet over a concrete slab foundation as well and it helped a lot.



Enrico Castagnetti @ Rythmik Audio
Media Room: Polk LSiM705s, LSiM706C, LSiM703s | Rythmik F12SE (x2) | Marantz SR7008 | Parasound Halo P5 | Emotiva XPA-3 & XPA-200 | Oppo 105D | Sony HW40ES |
Desktop: Dynaudio BM5 mkIII | Rythmik L22 | Apogee Duet | 27" iMac|
Bedroom: B&W 685 S2 | Rythmik LVX12 | Marantz NR1606 | Emotiva XPA-200 Gen 2 | Samsung UN50JU6500 |
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post #22169 of 24393 Old 12-16-2015, 02:46 PM
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Hello Enrico,

Hope you are well.

I don't believe a SubDude would help in my case. The sub is on carpet over cement slab foundation. Sub vibrating the floor is not going to happen...lol. At least I hope not!!

Thanks for the suggestion though.

Later,

Tony
Hi Tony


You better listen to Enrico. SubDude does reduce the vibrations that are transmitted through point of contacts. Concrete is a very good medium to pass vibration. some one suggested the following experiment. Put your ear against the floor on one side of room and have another person walk upto another end and stomp their feet. Try the subdude- worst case you lose some $40. It is expensive for what it does but when it works boy it worth every penny and more. Just make sure you get the right size, there is something called gramma or whatever which is large in size than the standard one.


BTW I have no affinity with sub dude. I just went through all the ways to isolate bass from going into my neighbors town home. Turns out the lady had her head rest against the common wall three floors up and was complaining about me playing "drums" constantly.


Edit: If that does not work, the problem could be resonance frequency. some of the material ( walls, wood etc) may be resonating at a particular frequency, you might have to tune those frequencies out so that the walls wont flex but subdued is a good starting point.

Last edited by rsmt2000; 12-16-2015 at 02:51 PM. Reason: More information
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Originally Posted by rsmt2000 View Post
Hi Tony


You better listen to Enrico. SubDude does reduce the vibrations that are transmitted through point of contacts. Concrete is a very good medium to pass vibration. some one suggested the following experiment. Put your ear against the floor on one side of room and have another person walk upto another end and stomp their feet. Try the subdude- worst case you lose some $40. It is expensive for what it does but when it works boy it worth every penny and more. Just make sure you get the right size, there is something called gramma or whatever which is large in size than the standard one.


BTW I have no affinity with sub dude. I just went through all the ways to isolate bass from going into my neighbors town home. Turns out the lady had her head rest against the common wall three floors up and was complaining about me playing "drums" constantly.


Edit: If that does not work, the problem could be resonance frequency. some of the material ( walls, wood etc) may be resonating at a particular frequency, you might have to tune those frequencies out so that the walls wont flex but subdued is a good starting point.
Hello All,

Hope you are all well.

Mmm...do you think I could make a franken subdude out of some thick fluffy foam and some bubble wrap in a sandwhich? Just to see if isolating the sub from the concrete does anything at all?

Only the rear wall is having this issue, it is a non load bearing wall of drywall covered in stucco. The wall has 24" spacing on the studs, so huge spaces of unsupported drywall. The left wall is an exterior wall with two windows covered in heavy theater curtains, stud spacing is 16" centers. Left wall is covered in brick on the outside, and appears innert. The right wall is a load bearing wall with 16" stud centers and abuts the fireplace and chimney. The screen wall is also a load bearing wall and is also a firewall with the garage on the other side. The screen wall is not flexing. I will get a ladder tomorrow and see if the ceiling is flexing/breathing or not. I will also hopefully be able to fire up REW either tomorrow or Friday, depending on when my Umik-1 gets here. The walls with the 16" stud centers are vibrating but not heaving violently like the rear wall with the 24" stud centers.

I fired up the Darla tap scene from Finding Nemo, wow pretty impressive feels like she is tapping on the roof of the house. I fear that my Wife will come home and find me buried under the rubble of what was my home dead with a stupid grin on my face...lol.

Thanks for the help.

Later,

Tony
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