Is there a noticeable difference in ported vs sealed subs? SVS - AVS Forum | Home Theater Discussions And Reviews
Forum Jump: 
 1Likes
  • 1 Post By MIX_MASTER_ICE
 
Thread Tools
post #1 of 9 Old 01-11-2019, 03:44 PM - Thread Starter
Newbie
 
Join Date: Jan 2019
Posts: 2
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
Liked: 0
Is there a noticeable difference in ported vs sealed subs? SVS

I am building 3.1 system and eventually will upgrade to 5.1.2. Right now I have JBL studio 280 and denon x1400h. I am hunting for a good sub and found a SVS SB-2000 for $400. My question is, is there a noticeable difference between the ported and sealed subs by SVS? I have this in my living room that is about 22' x 14'. I currently use a sound bar and do not have any experience with subs.
Parth Patel is offline  
Sponsored Links
Advertisement
 
post #2 of 9 Old 01-11-2019, 04:02 PM
AVS Forum Special Member
 
MIX_MASTER_ICE's Avatar
 
Join Date: Mar 2012
Posts: 4,877
Mentioned: 44 Post(s)
Tagged: 0 Thread(s)
Quoted: 2557 Post(s)
Liked: 2397
Generally speaking, a ported sub will have much more output lower in range, around it's port tune, compared to a similar sealed sub. The ported sub will have it's output drop rather steeply below port tune. A sealed sub will have a more gradual roll off lower in range and often can go a bit lower due to the more gradual decrease. Again, generally speaking, a ported sub is better for home theater and larger rooms. Sealed subs do better in smaller rooms where thy benefit from more room gain.



Your room, assuming 7.5' ceiling and not open to other rooms/areas, is about 2300 ft^3, which is a medium sized room for subs. I would probably opt for a ported sub for a home theater system. Here's a comparison in the SVS ported PB12-NSD and sealed SB12-NSD (which the SB-2000 replaced in the SVS lineup.)



Max output @20Hz - PB12= 103.2dB/ SB12= 91.9dB. @50Hz- PB12= 107.3dB/ SB12= 106.4dB.


As you can see, close to the port tune of the PB12 the output is far greater than the SB12. Move further up the frequency and the difference is much smaller.
Madmax67 likes this.

Subs>RBH I-12e/I-12. HSU VTF-15H mk2. Monolith THX 12(x2)/THX 10(x2). XTZ 1X12. SVS PB-1000(x2). Speakers>JBL 270/235c/230/225c, Arena 130/125c. Jamo S807/S803. Infinity P363/163. Pioneer FS52/BS22A/C22. Sony CS3/CS8/CS5. QA 3020i/3090Ci, 2020i/2000c. Monolith AM Cinema 5 bs. Polk RTiA1/CsiA4. Other Audio>Sony MDR-Z7m2, WH-XB700, XB32, XB31.JBL Live500bt. Logitech GPro HS. Plantronics RIG 500 Pro HS. LG FH6,RK8,PK5,PH4. UE Boom3.
MIX_MASTER_ICE is online now  
post #3 of 9 Old 01-11-2019, 04:48 PM
AVS Forum Special Member
 
darthray's Avatar
 
Join Date: Jul 2005
Location: Cold lake Alberta Canada
Posts: 6,205
Mentioned: 31 Post(s)
Tagged: 0 Thread(s)
Quoted: 2046 Post(s)
Liked: 2897
Quote:
Originally Posted by MIX_MASTER_ICE View Post
Generally speaking, a ported sub will have much more output lower in range, around it's port tune, compared to a similar sealed sub. The ported sub will have it's output drop rather steeply below port tune. A sealed sub will have a more gradual roll off lower in range and often can go a bit lower due to the more gradual decrease. Again, generally speaking, a ported sub is better for home theater and larger rooms. Sealed subs do better in smaller rooms where thy benefit from more room gain.



Your room, assuming 7.5' ceiling and not open to other rooms/areas, is about 2300 ft^3, which is a medium sized room for subs. I would probably opt for a ported sub for a home theater system. Here's a comparison in the SVS ported PB12-NSD and sealed SB12-NSD (which the SB-2000 replaced in the SVS lineup.)



Max output @20Hz - PB12= 103.2dB/ SB12= 91.9dB. @50Hz- PB12= 107.3dB/ SB12= 106.4dB.


As you can see, close to the port tune of the PB12 the output is far greater than the SB12. Move further up the frequency and the difference is much smaller.
+1

Quote:
Originally Posted by Parth Patel View Post
I am building 3.1 system and eventually will upgrade to 5.1.2. Right now I have JBL studio 280 and denon x1400h. I am hunting for a good sub and found a SVS SB-2000 for $400. My question is, is there a noticeable difference between the ported and sealed subs by SVS? I have this in my living room that is about 22' x 14'. I currently use a sound bar and do not have any experience with subs.
Coming from a sound bar. You are in, for a threat and an eye opener. For what real bass sound is suppose to sound like.


That said, My vote also go for the PB12 over the SB12. Since your room is not that small.
Mine is 12 x 18 x 8ft, with two PB13-Ultra.
And I can see in the future, that you may want a second sub.


Ray

Last edited by darthray; 01-11-2019 at 04:54 PM.
darthray is offline  
Sponsored Links
Advertisement
 
post #4 of 9 Old 01-11-2019, 05:48 PM - Thread Starter
Newbie
 
Join Date: Jan 2019
Posts: 2
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
Liked: 0
For lower frequencies, does it mean that I won't be able to hear the bass on the SB as much as the PB?

I don't think size is an issue when I set this up. Are there any deals that SVS has during certain time of the year? I am trying to stay within $500 range.
Parth Patel is offline  
post #5 of 9 Old 01-11-2019, 06:17 PM
AVS Forum Special Member
 
indebtbassfreak's Avatar
 
Join Date: Apr 2016
Location: Squamish BC
Posts: 2,405
Mentioned: 27 Post(s)
Tagged: 0 Thread(s)
Quoted: 1319 Post(s)
Liked: 2425
Quote:
Originally Posted by Parth Patel View Post
For lower frequencies, does it mean that I won't be able to hear the bass on the SB as much as the PB?

I don't think size is an issue when I set this up. Are there any deals that SVS has during certain time of the year? I am trying to stay within $500 range.
Using MMI's graph. At 20Hz for example which is where you want strong bass for movies,, 11DB's difference,,,, it would take almost four sealed to equal the output of just one ported at that frequency. Ported often below 35Hz will have about three times the output as the same sealed version until it goes below port tune.

-Marantz SR-8012
-Yamaha BD-A1060
-Funk 21.0LX Master/Slave combo 4800 watts RMS/9600watts (peak)-
-Chane A-2.4 L/C/R
-Chane A-1.4 side/rear surrounds.
indebtbassfreak is offline  
post #6 of 9 Old 01-11-2019, 07:02 PM
AVS Forum Special Member
 
torii's Avatar
 
Join Date: Mar 2015
Posts: 6,527
Mentioned: 47 Post(s)
Tagged: 0 Thread(s)
Quoted: 3199 Post(s)
Liked: 1803
for movies you need the low frequencies...NEED. most music doesnt really go below 30hz, at least the music I listen to. the boomy bass is usually 80-120hz

Power: Marantz sr7008, NAD C 275Bee x 2, Video: Oppo 103, Samsung 75un6300
Speakers: Focal aria 948, Focal cc900, Klipsch synergy KSF 10.5, Magnepan LRS
Subs: Rythmik FV25HP, Rythmik FV15HP
torii is offline  
post #7 of 9 Old 01-12-2019, 03:27 PM
AVS Forum Special Member
 
CHASLS2's Avatar
 
Join Date: Feb 2009
Location: Tampa FL area
Posts: 3,133
Mentioned: 4 Post(s)
Tagged: 0 Thread(s)
Quoted: 1093 Post(s)
Liked: 491
Sealed sound so much better in my sealed bedroom

Sony 65" A1E Pioneer Elite DV-59 AVI
OPPO203,103&83 Sony BD player
Pioneer Elite SC61 AVR Acurus 200x 3
Paradigm 60V5'S 490 CC V5
B&W 685 S2's 2 SVS subs
CHASLS2 is offline  
post #8 of 9 Old 01-12-2019, 04:04 PM
Senior Member
 
Join Date: Jan 2018
Location: Omaha, NE
Posts: 355
Mentioned: 8 Post(s)
Tagged: 0 Thread(s)
Quoted: 209 Post(s)
Liked: 583
When I was shopping for my sub I listened to my cousin's PC-2000. I was really close to buying as it sounded great, had great reviews, and excellent communication with SVS. It sounded great with most and in his room above a basement there was plenty of things shaking. I was using the Dolby Atmos Amaze demo (available from Dolby website) file in my testing. I tested at local retailers on other subs. The part where it is a thunderstorm and says "Sound You Can Feel" and transitions to rolling thunder in the distance and says "Powerful Bass" every ported sub gave me a flapping sound I detested. The SB-2000 wasn't impressive but that was in a huge demo room (about half the size of my house) that opened up to a monstrous store, so it probably would have been fine in my house. I liked the SB-4000 but that was out of my price range at the time. While being patient I was able to get a PSA XS-30se from their outlet center in my budget. I absolutely freaking love it and the sealed sound and effect even though I am in a basement with concrete floors. There was a local guy that upgraded his single PSA V1500 to 4 SVS SB-2000 and doesn't regret the expense. I know because I bought the sub at a stupid low price. After many many hours I got it integrated pretty well with my system. I got the gain turned down so it is about 6db lower than my sealed with pink noise test tones and about 10ft further away than my sealed. The net effect is my bass is overall smoother and I have more physical feel. There is still points like the intro of Edge of Tomorrow and the barrel roll scene in Flight of the Phoenix I get that flapping sound from the ported I detest. This has me looking to upgrade to two PSA S3010.

Based off my experience I think you will not regret your decision on the SVS SB2000. For your budget of less than $500 I can't think of a better sub. It will last you until you can you save up and get the sub/s you will inevitably want.

TV: LG OLED 65B7A, Receiver: Marantz SR-6012, Blu-Ray Player: LG UBK90, Fronts: JBL S312, Center: JBL S-Center, Surrounds: JBL S38, Top: Yamaha NS-AW1, Subwoofer: 2 PSA S3000i and one PSA XS-30se--- 5.3.4 setup
http://www.blu-ray.com/community/col...&action=hybrid
Joshua Chmiel is offline  
post #9 of 9 Old 01-12-2019, 07:58 PM
Advanced Member
 
dpc716's Avatar
 
Join Date: Feb 2010
Location: Massachusetts
Posts: 551
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 99 Post(s)
Liked: 145
In a room your size, and I'm assuming a somewhat open floor plan, I would want at least 2 12 inch ported subs to get me the output I would be looking for. If money was tight, I'd get one and save for a second. It's cheaper in the long run than buying something that doesn't fit my end goals that I will have to get rid of eventually. But not everyone is like me - there's plenty of folks who have small subs in large rooms and don't ever think of upgrading.


It all depends on your goals. Your living space is also a consideration - if you're in an apartment or condo with shared walls, the extra low end output you get from a ported sub would be a concern - a sealed sub would probably be a better fit.


I do agree that the SVS for 400 is a good buy, and will give good low end support at lower to intermediate volumes.

Last edited by dpc716; 01-12-2019 at 08:02 PM.
dpc716 is offline  
Sponsored Links
Advertisement
 
Reply Subwoofers, Bass, and Transducers

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page


Forum Jump: 

Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off