SVS PB12-NSD vs Polk PSW505 - AVS | Home Theater Discussions And Reviews
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post #1 of 9 Old 01-09-2013, 10:21 PM - Thread Starter
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I know this is a silly comparison, but I thought I would post for anyone that may be interested in this comparison. I've only had the SVS for a day, but my initial impression is different than expected. Rather than sounding louder, the SVS actually seems quieter. I think because the Polk was much more "boomy." Rather than hearing the bass, I feel it more now. I haven't experienced that complete blown away factor yet, but I can tell you I have a serious headache after listening to the SVS for a couple of hours. Never experienced that with the Polk. I will take that as a sign that the SVS is creating a higher SPL.

I've been so used to associating bass with boomy noises, I just expected much more of the same. I almost don't even hear the SVS, just feel it. I hope this helps anyone interested in this comparison.

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post #2 of 9 Old 01-09-2013, 10:38 PM
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I used to own the Polk505 and now have a SVS NSD 12/2 the difference I noticed was that boomy noise was actually distortion while the SVS was more quiet it actually was producing no distortion and you actually felt the bass instead of hearing the distortion of lower frequencies that the Polk couldn't produce properly. In my system I added four mid bass subs (40-80Hz) for overall mid bass punch while my SVS only handles all bass below 40Hz so I get that tight well controlled bass you hear and the SVS is handling all the bass you can feel (my awkward room required the MBM's otherwise in most rooms the SVS would be more than enough.

In time you'll learn to love the SVS and when you go to showrooms and hear boominess you'll smile knowing people are paying for distortion while your enjoying tight bass the way it should be.
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post #3 of 9 Old 01-10-2013, 09:47 AM - Thread Starter
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I think the more I listen, the more I will like the SVS. It will just take some time getting used to not hearing what I used to think was bass. What are you using for your midbass? HSU?

Unfortunately, my couch is almost directly in the middle of room, with a large opening for the dining room right behind the couch. My wife will not allow for different placement, so I'm stuck with my less than optimal listening position. I have noticed the bass sounds louder near the walls.

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post #4 of 9 Old 01-11-2013, 01:30 AM
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Slick I use two DefTech Supercube 1's and two DefTech Prosub 1000's as my mid bass subs 40-80Hz. I found def tech was not too good for deep frequency extension but were very quick, tight and loud for mid bass sound. So with four mid bass subs and my SVS handling everything below 40Hz I get very clean (and very loud) mid bass and deep bass in my main HT.

If I could afford it my dream system would be seven SVS PB-13's ( for each channel) and an Infinate Baffle sub for the "Main Subs" granted my woman would leave me and my dogs would cower Everytime I put on a movie but hey sacrifices would have to be made. :-)
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post #5 of 9 Old 01-11-2013, 06:04 AM
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Quote:
It will just take some time getting used to not hearing what I used to think was bass.
Sometimes, less (noise) is more. wink.gif Congrats on the new sub! smile.gif
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Unfortunately, my couch is almost directly in the middle of room, with a large opening for the dining room right behind the couch. My wife will not allow for different placement, so I'm stuck with my less than optimal listening position.
Is the location of the sub fixed, and have you done a sub crawl? If the answer to both those questions is 'no', do a crawl to see if there's one or more spots that offer better response at the listening position than does the current spot, and then put the sub in whichever location gets the WAF nod. smile.gif
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post #6 of 9 Old 01-11-2013, 06:59 AM
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Quote:
Originally Posted by slick7108514 View Post

I know this is a silly comparison, but I thought I would post for anyone that may be interested in this comparison. I've only had the SVS for a day, but my initial impression is different than expected. Rather than sounding louder, the SVS actually seems quieter. I think because the Polk was much more "boomy." Rather than hearing the bass, I feel it more now. I haven't experienced that complete blown away factor yet, but I can tell you I have a serious headache after listening to the SVS for a couple of hours. Never experienced that with the Polk. I will take that as a sign that the SVS is creating a higher SPL.

I've been so used to associating bass with boomy noises, I just expected much more of the same. I almost don't even hear the SVS, just feel it. I hope this helps anyone interested in this comparison.

The quasi-anechoic FR of both subs is drastically different - so I'm not surprised you also subjectively find the two subs quite different. The PSW505 will emphasize the 50-70 Hz band and will underrepresent the 18-36 Hz octave - whereas the PB12-NSD is essentially flat over the entire 20-80 Hz bandwidth. So if you have become accustomed to hearing the PSW505 FR, changing to the PB12-NSD will require an adjustment period, and your initial impression may be 'where did the mid-bass go'. After your ears acclimate I'm sure you'll find the bass presentation from the PB12-NSD to be more accurate sounding and less fatiguing.

Ed Mullen
Director - Technology and Customer Service
SVS

"What We Do In Life, Echoes In Eternity"
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post #7 of 9 Old Today, 07:31 AM
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Interesting read gentlemen. I know this thread is old. I currently run two PSW505's and was thinking of adding a local craigslist SVS PB12-NSD into the mix. I was curious how they might play together. My "home theater" is actually just a giant basement room so I'm having issues pressurizing the room and I feel the SVS nearfield might get me some pressure in the sub 30Hz range where the 505's struggle. I do have shakers on the couch since its sitting on concrete and the 505's were producing little tactile feel. The room is roughly 1,200 sq ft and has an open staircase and hallway which make it act even larger, so its a challenge.

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post #8 of 9 Old Today, 07:51 AM
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Originally Posted by dauber65 View Post
Interesting read gentlemen. I know this thread is old. I currently run two PSW505's and was thinking of adding a local craigslist SVS PB12-NSD into the mix. I was curious how they might play together. My "home theater" is actually just a giant basement room so I'm having issues pressurizing the room and I feel the SVS nearfield might get me so pressure in the sub 30Hz range where the 505's struggle.
I had a pair of 505's in my living room and they do go boom and that is about it. They work good for todays radio music. I use them out on my Touch Tunes Jukebox route and they do work well for that application. Very reliable sub that will take abuse on the cheap.

That being said I have a PC12NSD for my 2.1 garage setup and it outclasses the PSW505 ten fold. They have about the same amount of output in the 40-80hz range but the PC12 smashes it in the 20-40hz . Also a much cleaner sounding sub that has a very flat response and low distortion.

That being said the 505's will have a phase shift around the 30-40hz range(port tune) which may introduce some issues with the PB12 being it's tune is 18hz. So I would probably avoid that situation unless you know how to measure the response and have the equipment to eq the subs independently.

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post #9 of 9 Old Today, 11:01 AM
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Ya, I have been reading, seems the PSW505 is tuned around 35Hz. As mentioned the SVS is tuned around 18Hz.
I do not have any fancy equalizing equipment. I just run an LFE out on my Onkeyo and my setup only has the 3 position Audyessey, so no bass filtering even on that single channel.
Obviously his pair of SVS's would be ideal, but I'm not sure I could even sneak one in without my wife noticing. I'm not sure how I could sneak in two.
I'm just daisy chaining these 505's together right now, would do the same with the SVS if I added it in.
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