Official Power Sound Audio Subwoofer Thread - Page 1449 - AVS Forum | Home Theater Discussions And Reviews
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post #43441 of 51195 Old 07-06-2018, 08:52 AM
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Hopefully my V1510DF pair ships out next week, can't wait. I've ordered a 25 foot and a 6 foot 12v trigger cable to avoid relying on auto-on, and now I'm considering a pair of SubDude-HT platforms for them. The platforms are 18x22, and the subs are listed at 17.25x22, so it should be a very good fit. I don't know if these are snake oil though. The goal would be to shake my walls, windows, shelves, etc. less. Any opinions or experience with a downfiring PSA sub on one of these platforms?
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post #43442 of 51195 Old 07-06-2018, 10:25 AM
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It might help from transmitting some vibrations to a downstairs neighbor etc, but I dont think it's going to stop things in your room from moving.
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post #43443 of 51195 Old 07-06-2018, 11:46 AM
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Originally Posted by Pradeep2 View Post
It might help from transmitting some vibrations to a downstairs neighbor etc, but I dont think it's going to stop things in your room from moving.
I agree about it doing nothing in the room... in fact I don't think it would even do anything to stop vibrations going downstairs. But then again I fall in the category of people who think those things are more of a gimmick than anything else and I know others would disagree with me.
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post #43444 of 51195 Old 07-06-2018, 12:21 PM
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Originally Posted by ratbuddy View Post
Hopefully my V1510DF pair ships out next week, can't wait. I've ordered a 25 foot and a 6 foot 12v trigger cable to avoid relying on auto-on, and now I'm considering a pair of SubDude-HT platforms for them. The platforms are 18x22, and the subs are listed at 17.25x22, so it should be a very good fit. I don't know if these are snake oil though. The goal would be to shake my walls, windows, shelves, etc. less. Any opinions or experience with a downfiring PSA sub on one of these platforms?

Hi,

I gave my friends who commented above "Likes" but the SubDudes might help a bit, depending on a couple of factors. If you are on a suspended wood floor, decoupling a subwoofer from the floor (with almost anything fairly thick and inert) can reduce the direct vibrations which are transmitted from the subwoofer cabinet to the floor. That can help somewhat to reduce transferred vibrations from the subwoofer to the floor, and then to adjacent walls.

But, at higher volume levels, the subwoofers will still be producing SPL and particle velocity which will make the floor vibrate, and other things in the room vibrate sympathetically at certain frequencies. So, decoupling the sub won't eliminate potential vibrations. At best, it will reduce them somewhat at lower volume levels. The fact that the sub is down-firing is pretty much a non-issue, in my opinion. The vibrations from the cabinet to the floor would be directly transferred, no matter which way the driver points.

Something that a decoupling pad, like the SubDude, won't do is to reduce what neighbors on the floor below will hear. Low-bass frequencies will go right through the pad as if it isn't even there--just as they go through the subwoofer cabinet, and the floor, to start with. My own advice would be to get the subwoofers first, and then to determine whether or not you really have a problem with vibrations transferred through the floor, to other parts of the room.

If you do, you can try to DIY something yourself, or you can buy a SubDude to try that. Even then, you may still need to work directly on the things that are vibrating in the room. But, I would wait and see before worrying about it.

Regards,
Mike
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post #43445 of 51195 Old 07-06-2018, 12:26 PM
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Originally Posted by ratbuddy View Post
Hopefully my V1510DF pair ships out next week, can't wait. I've ordered a 25 foot and a 6 foot 12v trigger cable to avoid relying on auto-on, and now I'm considering a pair of SubDude-HT platforms for them. The platforms are 18x22, and the subs are listed at 17.25x22, so it should be a very good fit. I don't know if these are snake oil though. The goal would be to shake my walls, windows, shelves, etc. less. Any opinions or experience with a downfiring PSA sub on one of these platforms?
Is the subfloor concrete? If so I doubt the Auralex will provide any benefit. With a floating, wood subfloor it may slightly dampen the sympathetic vibrations. When I lived in an upstairs apartment, the Gramma had a positive effect according to the downstairs neighbor.

Edit: I just remembered that the PSA packing foam can be used just like a Subdude. I would try the foam first before dropping coin on a Subdude. Discuss with Tom though. The foam will increase the space between the driver and the floor which can affect the performance on a down-firing sub. It should be fine for testing though.
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Last edited by Marc Alexander; 07-06-2018 at 12:32 PM.
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post #43446 of 51195 Old 07-06-2018, 12:39 PM
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I own a house, so I'm not worried about downstairs neighbors. Hopefully the ones next door and across the street won't be able to hear anything!

The floor is regular laminate over wood with a 5' crawlspace underneath. The subs will be sitting right behind the couch on an area rug of normal thickness, it's one of those patterned ones they keep in a big stack in the flooring section of Home Depot if that helps.

It sounds like I should just hold off on the pads and try them as-is first.
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post #43447 of 51195 Old 07-06-2018, 12:50 PM
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Originally Posted by ratbuddy View Post
I own a house, so I'm not worried about downstairs neighbors. Hopefully the ones next door and across the street won't be able to hear anything!

The floor is regular laminate over wood with a 5' crawlspace underneath. The subs will be sitting right behind the couch on an area rug of normal thickness, it's one of those patterned ones they keep in a big stack in the flooring section of Home Depot if that helps.

It sounds like I should just hold off on the pads and try them as-is first.
A suspended wooden floor can provide a great tactile experience so you should be in for a glorious ride.
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post #43448 of 51195 Old 07-06-2018, 01:13 PM
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I own a house, so I'm not worried about downstairs neighbors. Hopefully the ones next door and across the street won't be able to hear anything!
Depending on distance and how loud you listen...the neighbors may not HEAR it, but they will almost certainly FEEL it.
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post #43449 of 51195 Old 07-06-2018, 01:48 PM
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Just wanna say I've been stuck on this thread for months and have asked multiple questions about PSA speakers only to find out yesterday that there is a dedicated thread for PSA speakers in the Speakers forum lol
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post #43450 of 51195 Old 07-06-2018, 05:37 PM
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Just wanna say I've been stuck on this thread for months and have asked multiple questions about PSA speakers only to find out yesterday that there is a dedicated thread for PSA speakers in the Speakers forum lol
GJG, I'm still laughing as I type this after I read your post, thanks for the uplifting moment. Just so you know you can talk or ask about anything in this thread, I'm buying a new router that a few of the guys reco'd cause I asked who had experience with that model and how they liked it...............seriously my friend ask away.....

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post #43451 of 51195 Old 07-06-2018, 05:42 PM
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Hey Guys, with the new ICE amps with trigger in and outs, can I run a trigger cable from AVR out to sub 1 input and a cable from sub 1 out to sub 2 in and then from sub 2 out to outboard amp in? Thanks........
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post #43452 of 51195 Old 07-06-2018, 05:59 PM
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Hey Guys, with the new ICE amps with trigger in and outs, can I run a trigger cable from AVR out to sub 1 input and a cable from sub 1 out to sub 2 in and then from sub 2 out to outboard amp in? Thanks........

I can't imagine why that would not work. I run a trigger cable from AVR out to an amp in and then out to some trigger controlled cooling fans and it works like a charm. I was careful to have all components totally off when connecting the cables because I read some cautionary tales about the delicate trigger circuit in the Marantz.
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post #43453 of 51195 Old 07-06-2018, 07:49 PM
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I would go down to your local home improvement store, buy a small piece of MDF, and experiment with pint size samples of coatings and maybe even a light stain. MDF is tricky when not primed.
That's really the best advice. I'd buy a BIG piece though because I almost guarantee this isn't going to look very good on your very first try..

The bare MDF isn't consistent in shade. It's really nothing most would want in their living room imo. Even protected with a sealer. Here's another close up I got today trying to show this.

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post #43454 of 51195 Old 07-06-2018, 07:54 PM
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Hey Guys, with the new ICE amps with trigger in and outs, can I run a trigger cable from AVR out to sub 1 input and a cable from sub 1 out to sub 2 in and then from sub 2 out to outboard amp in? Thanks........
That will work fine.

btw Jeff, I told puppy you were coming back for a visit soon...she's ready.

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post #43455 of 51195 Old 07-06-2018, 07:56 PM
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Originally Posted by zeuspaul View Post
I can't imagine why that would not work. I run a trigger cable from AVR out to an amp in and then out to some trigger controlled cooling fans and it works like a charm. I was careful to have all components totally off when connecting the cables because I read some cautionary tales about the delicate trigger circuit in the Marantz.
That's a very good reminder for us all. The same goes for EVERY connection between any component as well.

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post #43456 of 51195 Old 07-06-2018, 08:35 PM
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Originally Posted by ratbuddy View Post
I own a house, so I'm not worried about downstairs neighbors. Hopefully the ones next door and across the street won't be able to hear anything!

The floor is regular laminate over wood with a 5' crawlspace underneath. The subs will be sitting right behind the couch on an area rug of normal thickness, it's one of those patterned ones they keep in a big stack in the flooring section of Home Depot if that helps.

It sounds like I should just hold off on the pads and try them as-is first.
Just go with some peel and stick half moons like these.

https://www.amazon.com/Platinum-Sili.../dp/B075KKX3QQ

I have a few different types here, just email me your order # and I'll pack some in for you when we ship.

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post #43457 of 51195 Old 07-07-2018, 06:30 AM
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Good thing you didnt build a whole new building and have to deal with surveyors , if you think the other contractors were bad....They take the cake!!
Whoa, whoa, whoa...what's wrong with surveyors? I mean, we're only considered prima-donnas when we ask for something and a**holes when we say no. Apparently, there is no in-between...but I'm used to it after 25 years.

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post #43458 of 51195 Old 07-07-2018, 10:53 AM
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Originally Posted by ratbuddy View Post
Hopefully my V1510DF pair ships out next week, can't wait. I've ordered a 25 foot and a 6 foot 12v trigger cable to avoid relying on auto-on, and now I'm considering a pair of SubDude-HT platforms for them. The platforms are 18x22, and the subs are listed at 17.25x22, so it should be a very good fit. I don't know if these are snake oil though. The goal would be to shake my walls, windows, shelves, etc. less. Any opinions or experience with a downfiring PSA sub on one of these platforms?
I also agree with using the thick black foam packing pieces used for shipping your V1510DF. There're just the right size, thick, FREE, and you can position them in a way where they can't be seen and it looks like your sub is floating, or in a block base style and are great for decoupling. Tom V recommends them also. But of course you're going to have to wait a little bit until they get there...

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post #43459 of 51195 Old 07-07-2018, 11:15 AM
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Decoupling on a concrete floor would be the wrong direction to go correct?


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post #43460 of 51195 Old 07-07-2018, 11:25 AM
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Decoupling on a concrete floor would be the wrong direction to go correct?


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It likely won't matter in any way.
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post #43461 of 51195 Old 07-07-2018, 11:36 AM
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Decoupling on a concrete floor would be the wrong direction to go correct?


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I think it all depends as I have heard of subs moving around on finished concrete slab floors.

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post #43462 of 51195 Old 07-07-2018, 12:19 PM
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That will work fine.

btw Jeff, I told puppy you were coming back for a visit soon...she's ready.

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post #43463 of 51195 Old 07-07-2018, 12:26 PM
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That will work fine.

btw Jeff, I told puppy you were coming back for a visit soon...she's ready.

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Yeah she looks ready for an afternoon HANDwich, I guess I have to wear a suit of amour when I come down. Anyway should see you by end of July maybe sooner, depends on what I decide about what I'm contemplating...
either way see you and puppy soon........feed her before I get there.............
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I’m just wondering if that will improve my drywall and the fact it makes a ton of noise


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post #43465 of 51195 Old 07-07-2018, 01:35 PM
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I’m just wondering if that will improve my drywall and the fact it makes a ton of noise


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It likely won't make any difference. Try decoupling with your packing foam.
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post #43466 of 51195 Old 07-07-2018, 01:49 PM
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I’m just wondering if that will improve my drywall and the fact it makes a ton of noise


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Dave only way to fix that noisy drywall is to sell your subs and buy Bose or build a new wall...........
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post #43467 of 51195 Old 07-07-2018, 01:54 PM
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I’m just wondering if that will improve my drywall and the fact it makes a ton of noise

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Well, as Marc said, it won't hurt to try. But, I am skeptical that it will make much difference. Concrete does conduct tactile energy, but not nearly to the extent that a suspended wood floor does. And, at very high volume levels, it's not just direct contact with the floor that transmits vibrations to other parts of the room. It's airborne SPL that mostly does it.

If you are still having problems with your drywall making a lot of noise at high volume levels, I would try moving the subwoofer a little further away from the wall. The loss of boundary gain should be negligible, but you may be able to get enough separation that the wall quiets down a bit. As with the acoustic pad, it's worth a try. Frankly, I might pull the subwoofer away more, and try putting the packing material between the subwoofer and the wall to see if that helps.

If you do try any of these measures, please try them one at a time, so you can tell us which if any made a difference.

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post #43468 of 51195 Old 07-07-2018, 07:30 PM
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Good lord, it's Godzilla!!!!!!
She's the sweetest little pup with everyone and I mean everyone...except blaze. We have almost daily visits from UPS, fedex, RL freight, and a couple others. Each driver brings her treats and is sure to spend some time with her. She's never done anything more then try to lick you to death. Even when UPS/fedex doesn't even have a delivery for us they often stop by just to play with her for a minute. Complete strangers are the same. Within 10 seconds you would think she's known them forever...like long lost friends. Same with everyone really--- Except Blaze...

I have my own theory on her skittishness though. Ever notice how blaze will go offline for a few days every month? Let's see what happens later this month...around say...the 27th

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I just wanted to post this public “Thank You” to Tom V.

Late October 2013 I took delivery of a PSA Triax. I’ve always had a little buzzing/ground loop noise from the sub, but since it wasn’t noticeable at the listening position while playing content, I never pursued a solution.

Fast forward to a couple weeks ago, I was having my TV calibrated by DNice and he immediately noticed the noise and mentioned he had the same issue with his Seaton Submersives (they use the same amp manufacturer if I remember correctly). DNice said the fix was using an adapter to lift the ground from the unbalanced cable and suggested I contact PSA to see if they could help me.

I emailed Tom who quickly responded that he could send to me a device that should take care of it. Shortly after, it arrived, and sure enough it worked perfectly! Btw, I wasn’t charged a cent for this (the device wasn’t exactly cheap)!

There aren’t many companies that would provide this level of service this far out after the sale.

So once again, thank you, Tom!

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post #43470 of 51195 Old 07-08-2018, 12:00 AM
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Originally Posted by Saturn94 View Post
I just wanted to post this public “Thank You” to Tom V.

Late October 2013 I took delivery of a PSA Triax. I’ve always had a little buzzing/ground loop noise from the sub, but since it wasn’t noticeable at the listening position while playing content, I never pursued a solution.

Fast forward to a couple weeks ago, I was having my TV calibrated by DNice and he immediately noticed the noise and mentioned he had the same issue with his Seaton Submersives (they use the same amp manufacturer if I remember correctly). DNice said the fix was using an adapter to lift the ground from the unbalanced cable and suggested I contact PSA to see if they could help me.

I emailed Tom who quickly responded that he could send to me a device that should take care of it. Shortly after, it arrived, and sure enough it worked perfectly! Btw, I wasn’t charged a cent for this (the device wasn’t exactly cheap)!

There aren’t many companies that would provide this level of service this far out after the sale.

So once again, thank you, Tom!
@D-Nice stop recommending cheater plugs and have customers contact the manufacturer.

Edit: My mistake, lifting the ground on an interconnect cable is ok.

Last edited by Marc Alexander; 07-08-2018 at 08:17 AM.
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