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Old 02-28-2014, 05:13 AM - Thread Starter
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After measuring my PB2000 in room, placed in its only possible placement option, I discovered a bad null between 40-60 Hz of about 10 dB.  So, I pulled the PSW110 out of the attic, placed it in the only other location available in my room, and it filled the 40-60 Hz null pefectly.  However, it ONLY has output in this region.  Drops like a rock at 38Hz.  So this has me thinking about what the best option would be in a decent sub to pair with the PB2000 for room smoothing.

 

My short list would be:

 

PB1000

SB1000

SB2000

 

Size is a constraint, so the XS15 is too large.  Limited to about 15" in width.

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Old 02-28-2014, 05:51 AM
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No way to do another PB2000? I'm a big fan of sticking with identical subs. However that being said, I've not messed around with different alignment subs (sealed vs. ported) or even just different sizes. Funny things occur with phase at port tuning frequencies, where with two different port tunings (PB1000 vs PB2000) you'll maybe have some phase mixing issues that are intriduced. At worst you could try with SVS's 45 day free trial and see if you get any issues. Of those, I'd maybe go sealed for a 2nd sub with a gradual rolloff down low that'll interfere less with the low port tuning of your PB2000.

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Old 02-28-2014, 06:48 AM
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Mixing alignments is not recomended...it can be done but you will need to do some eqing as there will be some cancellation around the ported subs tune. If you are mainly using the PSW110 to fix a mid bass null then I do not see the PB-1000 giving you more then what the Polk sub is. Have you considered a the mid bass module from HSU?

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Old 02-28-2014, 09:34 AM - Thread Starter
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No, another PB2000 won't fit, and I don't want to spend that much when I don't really need more output.  My thought was that the PB1000 would match the PB2000's FR closely, so would help with smoothing across the entire FR, and would be as close to adding a 2nd PB2000 as I could get.  On the other hand, perhaps a smaller sealed sub like th SB1000 would have good output 30-80Hz for good FR smoothing, and possibly better low frequency extension.  Afraid this one might be too whimpy to match up well though.  2525 cu. ft. room.

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Old 02-28-2014, 09:46 AM
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bear where will this 2nd sub be located??? If its nearfield I'd probably go with the SB2000, BUT if its farther away or up front in the room I'd go with the PB1000.

Shawn
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Old 02-28-2014, 10:01 AM - Thread Starter
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It is going nearfield between the couch and wall, about 4-5 ft from a corner.

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Old 02-28-2014, 10:07 AM - Thread Starter
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Here is what the FR looks like:

 

 

Now, for the mighty PSW110.  Hope this does not cause a surge of orders and supply issues for Polk:

 

 

Combined: (SPL calibrated porperly)

 

 

I am thinking a PB1000 or even SB1000 would help smooth out 25-40 a bit better.

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Old 02-28-2014, 12:19 PM
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First off do you have a better placement for the single sub? Maybe with better placement you could get a better initial response.

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Old 02-28-2014, 03:53 PM
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Your individual response graphs are in 5db increments and your combined response is in 10db increments....let's see the combined in 5db increments and then we can see just how much help you need. My initial thought was "that combined graph looks pretty darn good, what are you complaining about?" until I saw that it was 10db steps. smile.gif
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Old 02-28-2014, 04:12 PM
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Already tired of the PSW10? wink.gif
Quote:
Originally Posted by bear123 View Post

 On the other hand, perhaps a smaller sealed sub like th SB1000 would have good output 30-80Hz for good FR smoothing, and possibly better low frequency extension.  Afraid this one might be too whimpy to match up well though.  2525 cu. ft. room.

How about SB12 for $600? Save you $100. Audioholics rated it as 1500 to 3000 cubic feet, and Ricci's listening test was in a 4,000 cubic foot room with the sub 4 meters away. If you are going to have it nearfield with the PB-2000 doing a lot of the heavy lifting, too, seems like it could do just fine.

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Old 02-28-2014, 05:37 PM - Thread Starter
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Quote:
Originally Posted by Brian Fineberg View Post

First off do you have a better placement for the single sub? Maybe with better placement you could get a better initial response.

Nope front corner of the room is the only placement option.  The only really bad part of the FR is 40-60, and the nearfield location of the other sub(where a PB2000 wont fit) does well in this range.  The Polk drops like a rock at 38 so not sure how this location does for other frequencies.

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Old 02-28-2014, 05:37 PM
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Originally Posted by bear123 View Post

No, another PB2000 won't fit, and I don't want to spend that much when I don't really need more output.  My thought was that the PB1000 would match the PB2000's FR closely, so would help with smoothing across the entire FR, and would be as close to adding a 2nd PB2000 as I could get.  On the other hand, perhaps a smaller sealed sub like th SB1000 would have good output 30-80Hz for good FR smoothing, and possibly better low frequency extension.  Afraid this one might be too whimpy to match up well though.  2525 cu. ft. room.

Again have you considered the HSU mid bass module? I think that would help add mid bass slam and smooth the response without limiting headroom. Let the PB2000 handle the 16-40hz and let the HSU handle the 50-100hz. Adding a sealed sub will introduce another set of problems and adding the lesser PB-1000 will limit headroom.

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Old 02-28-2014, 05:44 PM - Thread Starter
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Quote:
Originally Posted by Alan P View Post

Your individual response graphs are in 5db increments and your combined response is in 10db increments....let's see the combined in 5db increments and then we can see just how much help you need. My initial thought was "that combined graph looks pretty darn good, what are you complaining about?" until I saw that it was 10db steps. smile.gif

 

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Old 02-28-2014, 05:45 PM - Thread Starter
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Originally Posted by basshead81 View Post


Again have you considered the HSU mid bass module? I think that would help add mid bass slam and smooth the response without limiting headroom. Let the PB2000 handle the 16-40hz and let the HSU handle the 50-100hz. Adding a sealed sub will introduce another set of problems and adding the lesser PB-1000 will limit headroom.

I might have to check on that option.  thanks, price will be nice as well i think.

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Old 02-28-2014, 07:07 PM
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Quote:
Originally Posted by basshead81 View Post

Again have you considered the HSU mid bass module? I think that would help add mid bass slam and smooth the response without limiting headroom. Let the PB2000 handle the 16-40hz and let the HSU handle the 50-100hz. Adding a sealed sub will introduce another set of problems and adding the lesser PB-1000 will limit headroom.

So what will handle from 40 to 50hz? The mid bass module minimum crossover is 50hz, so that means setting the crossover right in the area where there is the drop out that he's trying solve coming from the PB-2000.

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Old 02-28-2014, 07:29 PM
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So what will handle from 40 to 50hz? The mid bass module minimum crossover is 50hz, so that means setting the crossover right in the area where there is the drop out that he's trying solve coming from the PB-2000.

I meant let the SVS handle the 16-50hz and the HSU kick in above that. According to his graph it looks pretty good, meaning he solved his response problem. Now Bear just needs a good sub that will fit his space requirements to compliment the PB2000 without limiting headroom. I thought the HSU mid bass module would work well in this situation....the size is right, the price is right, and it will add some nice mid bass punch while helping smooth the response.

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Old 02-28-2014, 08:36 PM
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I meant let the SVS handle the 16-50hz and the HSU kick in above that.

Oh, I know. My point was that his graph shows the apex of the dip at 48hz. So it might only solve half the problem if the HSU is already rolling off because of the crossover. I guess he could bypass the crossover, which might help.

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Old 03-01-2014, 09:23 AM - Thread Starter
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LOL actually have myself wondering how the XS30 would work in my room :confused:

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Old 03-01-2014, 09:30 AM
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LOL actually have myself wondering how the XS30 would work in my room confused.gif

I definitely don't think that's going to fit behind your couch smile.gif

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Old 03-01-2014, 09:32 AM
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See: spending time here would get one to spend money to reach the next step even if one is happy with what he/she has and thinks his/her current sub is more than needed smile.gif. I was one of those.
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Old 03-01-2014, 09:37 AM - Thread Starter
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I definitely don't think that's going to fit behind your couch smile.gif

I meant rather than the PB2000.  This main sub is one that I want to be sure of, and happy with, indefinitely other than whichever i choose for smoothing purposes.  Whether I spend 800 or 1150 is not a big deal to me, and the XS30 has the same footprint.  Ultimately I want my initial purchase to be my final purchase and I am still in the trial period of my first sub.  I have been reading and studying a lot in the past few months since I started learning about home audio and sealed seems like an interesting option.

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Old 03-01-2014, 11:19 AM
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You will always want more bass... That is a given. There is sadly hardly any final purchase on subs... I thought that but have upgradeitis already after three years

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Old 03-06-2014, 02:06 PM
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Quick question for you OP. I have the Polk PSW110 sub right now and am buying a PB2000 next week. Is the difference night and day?
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Old 03-06-2014, 02:07 PM
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Quick question for you OP. I have the Polk PSW110 sub right now and am buying a PB2000 next week. Is the difference night and day?

Do you think a Colt .45 is better than a pellet gun? LOL
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Old 03-06-2014, 02:09 PM
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Do you think a Colt .45 is better than a pellet gun? LOL

Oh man your are saying the SVS is a pellet gun in comparison ? Disappointed now. tongue.gif


I figured it would be a huge upgrade just wanted to clarify since he has the exact same subwoofer I currently had.
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Old 03-06-2014, 02:15 PM
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Oh man your are saying the SVS is a pellet gun in comparison ? Disappointed now. tongue.gif


I figured it would be a huge upgrade just wanted to clarify since he has the exact same subwoofer I currently had.

I used to use an Outlaw LFM-1 EX in my living room, which is comparable in class to the PB-2000. When I first got it, I upgraded from a 10" ported sub that is considered a good bit better than the PSW10. It was still an OMG moment.

Grab a couple of 4 to 5 star movies from this list to test your new sub out with: http://www.avsforum.com/t/1333462/the-new-master-list-of-bass-in-movies-with-frequency-charts. In fact it was Star Trek (2009) that totally impressed me in my first test of the EX. Lots of good bass testing choices there smile.gif

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Old 03-06-2014, 02:24 PM
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Quote:
Originally Posted by cel4145 View Post

I used to use an Outlaw LFM-1 EX in my living room, which is comparable in class to the PB-2000. When I first got it, I upgraded from a 10" ported sub that is considered a good bit better than the PSW10. It was still an OMG moment.

Grab a couple of 4 to 5 star movies from this list to test your new sub out with: http://www.avsforum.com/t/1333462/the-new-master-list-of-bass-in-movies-with-frequency-charts. In fact it was Star Trek (2009) that totally impressed me in my first test of the EX. Lots of good bass testing choices there smile.gif

That is great news to hear. Thank you!

I already have quite a few movies on the Base List which I will be using for testing.
Have a feeling my neighbor living in the duplex next door isn't going to like me soon wink.gif
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Old 03-06-2014, 02:39 PM - Thread Starter
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Quick question for you OP. I have the Polk PSW110 sub right now and am buying a PB2000 next week. Is the difference night and day?

Your Polk plays well down to 38Hz, and pretty much nothing below that.  The PB2000 is solid down to 16Hz.  My AVR runs out of steam before the sub does.  I never heard any distress or signs that it was struggling at any volume I listen at.  WoTW pod scene was very impressive, it puts you in the scene.  

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Old 03-06-2014, 02:43 PM
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Your Polk plays well down to 38Hz, and pretty much nothing below that.  The PB2000 is solid down to 16Hz.  My AVR runs out of steam before the sub does.  I never heard any distress or signs that it was struggling at any volume I listen at.  WoTW pod scene was very impressive, it puts you in the scene.  
You are making me excited like a child before Christmas now. Next week cannot get here soon enough!
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Old 03-06-2014, 03:16 PM - Thread Starter
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You are making me excited like a child before Christmas now. Next week cannot get here soon enough!

When I demo'd Bass I Love You when I first got the PB2000, my wife was in the shower on the 2nd floor.  The bass drop dips below 20Hz.  The PB2000 shook my couch/room, and apparently the house.  My wife shut off the shower and yelled down asking what the hell was going on, she felt the house shaking :eek:  I have an holder home though, YMMV.

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Svs Pb1000 10 Inch 300 Watt Powered Subwoofer , Svs Pb2000 , Svs Sb2000 , Svs Sb1000 12 Inch 300 Watt Powered Subwoofer , Svs , Polk Audio Psw110 10 Inch Powered Subwoofer Single Black , Hsu Research
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