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Official Power Sound Audio Thread - Page 245

post #7321 of 10095
Quote:
Originally Posted by booga24 View Post

Can't go 2 to 3 times in terms of price so I'm consideration xs30, I might gain something in my 12' w x 21' d x 8' h room.

My room is bigger than yours (23x16x8) and my single XV15 fills it perfectly.
post #7322 of 10095
Quote:
Originally Posted by D Bone View Post

My room is bigger than yours (23x16x8) and my single XV15 fills it perfectly.



My issue is not with xv15 filling my room, it fills it more than enough and love the pressure of the sub. I just want to care the port noise when it dips very deep. If I have to loss output by going with sealed sub I am fine with that. I just want to run my system hot and not hear a port noise.
post #7323 of 10095
Quote:
Originally Posted by Brian Fineberg View Post

How does the xs30 compare to the port tune of the xv15?

The XV15 has a advantage.
Edited by basshead81 - 11/17/13 at 7:03pm
post #7324 of 10095
Quote:
Originally Posted by booga24 View Post

My issue is not with xv15 filling my room, it fills it more than enough and love the pressure of the sub. I just want to care the port noise when it dips very deep. If I have to loss output by going with sealed sub I am fine with that. I just want to run my system hot and not hear a port noise.

There is less the 1dB difference between the XV15 and XS30 from 30hz and down, and below 15hz the XS30 is going to have the advantage. So I wouldn't be concerned with losing any low end by switching to the XS30. IMO the XS30 has better performance, the advantage of the XV15 is that it's $350 less.

I think the XV15 is one of the best bang for buck subs on the market, but in outright performance the XS30 is a better sub.
post #7325 of 10095
Quote:
Originally Posted by booga24 View Post

My issue is not with xv15 filling my room, it fills it more than enough and love the pressure of the sub. I just want to care the port noise when it dips very deep. If I have to loss output by going with sealed sub I am fine with that. I just want to run my system hot and not hear a port noise.

Why not add another? When I had just dual XV15's I never herd port noise and I played a 15hz test tone @ 115db. You sure what you are hearing is port noise and not the sub hitting its soft limiter? Im guessing Audyssey is boosting the Low end and you are at the limits. That scene you are playing dips very low and not many single subs will handle that load at reference. If you want to listen at those levels look into going duals.
Edited by basshead81 - 11/17/13 at 7:13pm
post #7326 of 10095
Quote:
Originally Posted by jbrown15 View Post

There is less the 1dB difference between the XV15 and XS30 from 30hz and down, and below 15hz the XS30 is going to have and advantage. So I wouldn't be concerned with losing any low end by switching to the XS30. IMO the XS30 has better performance, the advantage of the XV15 is that it's $350 less.

I think the XV15 is one of the best bang for buck subs on the market, but in outright performance the XS30 is a better sub.

There is a .5db difference on average in the 20-31hz. Around the port tune(18hz) the XV probably has a advantage. Look at the ULF thread, the XS30 has a .7 SI (94.7db @ 16hz, 99.7db @ 20hz) and the XV15 has a 1.0 SI(98.1db @ 16hz, 103db @ 20hz).

I do agree the XS30 should have the advantage below 15hz and is a better sub.
Edited by basshead81 - 11/17/13 at 8:37pm
post #7327 of 10095
Quote:
Originally Posted by basshead81 View Post

Why not add another? When I had just dual XV15's I never herd port noise and I played a 15hz test tone @ 115db. You sure what you are hearing is port noise and not the sub hitting its soft limiter? Im guessing Audyssey is boosting the Low end and you are at the limits. That scene you are playing dips very low and not many single subs will handle that load at reference. If you want to listen at those levels look into going duals.



I don't know if want want go dual yet, would rather go with a single xs30. hoping XT32 would help.

Am I the only one with a single xv15 hearing port noise with scene smile.gif?
post #7328 of 10095
Quote:
Originally Posted by booga24 View Post

I don't know if want want go dual yet, would rather go with a single xs30. hoping XT32 would help.

Am I the only one with a single xv15 hearing port noise with scene smile.gif?

Turn off dynamic eq and it will go away. Port noise is fairly uncommon on the XV subs...imo you have too much low end gain from Audyssey.
post #7329 of 10095
Quote:
Originally Posted by basshead81 View Post

Turn off dynamic eq and it will go away. Port noise is fairly uncommon on the XV subs...imo you have too much low end gain from Audyssey.

If he is listening at reference (0db) which I believe he is, then DEQ has no effect at all, so turning it off won't help. It sounds like the OP is fixating on "port noise" and will likely never be happy.............. This is the weirdest "official owners thread" that I have ever been a part of.
post #7330 of 10095
Quote:
Originally Posted by jbrown15 View Post

There is less the 1dB difference between the XV15 and XS30 from 30hz and down, and below 15hz the XS30 is going to have the advantage. So I wouldn't be concerned with losing any low end by switching to the XS30. IMO the XS30 has better performance, the advantage of the XV15 is that it's $350 less.

I think the XV15 is one of the best bang for buck subs on the market, but in outright performance the XS30 is a better sub.

while I agree, I feel having both, the xs30 is a MUCH better sub, and that is saying something! While I never heard port noise from the xv15, the sound the xs30 emits is very smooth and very sweet. I would highly recommend it over the xv15 if the OP can afford it.

Also about the advantage to the xv15 around 18hz. it is VERY small to the xv15 and in my room the xs30 has enough room gain (alot actually) to overcome it, so it actually according to my REW has more output than my XV15 did at the same level...i did not max output test yet)

Quote:
Originally Posted by booga24 View Post

I don't know if want want go dual yet, would rather go with a single xs30. hoping XT32 would help.

Am I the only one with a single xv15 hearing port noise with scene smile.gif?

I have the xs30 and XT32 and I feel if you are going single sub this is the way to go!
post #7331 of 10095
Quote:
Originally Posted by Brian Fineberg View Post

while I agree, I feel having both, the xs30 is a MUCH better sub, and that is saying something! While I never heard port noise from the xv15, the sound the xs30 emits is very smooth and very sweet. I would highly recommend it over the xv15 if the OP can afford it.

Also about the advantage to the xv15 around 18hz. it is VERY small to the xv15 and in my room the xs30 has enough room gain (alot actually) to overcome it, so it actually according to my REW has more output than my XV15 did at the same level...i did not max output test yet)
I have the xs30 and XT32 and I feel if you are going single sub this is the way to go!

You can not assume that unless you do a max output test with both subs. I suggest you spend some time reading the ULF thread.
post #7332 of 10095
Quote:
Originally Posted by basshead81 View Post

I suggest you spend some time reading the ULF thread.

Not a good idea as doing so will make one increase their budget; reach right out and twist their arm, hard, behind their back. Reading the ULF thread will give one an understanding of why choices are good and bad and make one want more. Reading that thread will give choices perspective as to why choices are good-n-bad when compared to other choices in various settings.

Ignorance is bliss and when one reads that thread, they'll lose their innocence and find themselves wanting or needing more. Reading the ULF thread will remove any lingering doubt why the choice one has been looking at isn't the best choice and why a choice they've been ignoring, is the better choice. Reading the ULF thread will, without a doubt, help one find their true subwoofer bliss and in the process, save them money as making a proper choice will eliminated the need to upgrade, again and again and again.

The ULF thread has been the best single subwoofer guide I've been exposed to and is highly recommended reading.

basshead81, have I mentioned how impressed I was with you recommending that I look at the ULF thread? biggrin.gif

(i'll stop with the gushing now)
post #7333 of 10095
Quote:
Originally Posted by Brian Fineberg View Post

while I agree, I feel having both, the xs30 is a MUCH better sub, and that is saying something! While I never heard port noise from the xv15, the sound the xs30 emits is very smooth and very sweet. I would highly recommend it over the xv15 if the OP can afford it.

Also about the advantage to the xv15 around 18hz. it is VERY small to the xv15 and in my room the xs30 has enough room gain (alot actually) to overcome it, so it actually according to my REW has more output than my XV15 did at the same level...i did not max output test yet)
I have the xs30 and XT32 and I feel if you are going single sub this is the way to go!



Brian, how big is your room?
post #7334 of 10095
I know the Monument scene is right there, but what are the top 3 most challenging scenes in a movie?
post #7335 of 10095
Quote:
Originally Posted by booga24 View Post

Brian, how big is your room?

13x17x8
post #7336 of 10095
Quote:
Originally Posted by booga24 View Post

Brian, how big is your room?

Quote:
Originally Posted by basshead81 View Post

There is a .5db difference on average in the 20-31hz. Around the port tune(18hz) the XV probably has a advantage. Look at the ULF thread, the XS30 has a .7 SI (94.7db @ 16hz, 99.7db @ 20hz) and the XV15 has a 1.0 SI(98.1db @ 16hz, 103db @ 20hz).

I do agree the XS30 should have the advantage below 15hz and is a better sub.

just an FYI the ULF only has a GUESS at the xs30. it was never measured
post #7337 of 10095
Quote:
Originally Posted by Brian Fineberg View Post

13x17x8


I'm in 12' x 21' x 8' with the sub next to my loveseat which is 13' from the screen wall, with near field placement I can really hear the port noise.
post #7338 of 10095
Quote:
Originally Posted by booga24 View Post

I'm in 12' x 21' x 8' with the sub next to my loveseat which is 13' from the screen wall, with near field placement I can really hear the port noise.
im about 9 feet from my sub placement. I never heard the port noise. but that makes sense.
post #7339 of 10095
Quote:
Originally Posted by booga24 View Post

.....with near field placement I can really hear the port noise.

The simple, you're asking too much out of too little. What have you considered regarding adding to your existing subwoofer system or upgrading a couple more levels up the subwoofer feeding chain? Have you considered adding a second XV15 or trading up to a XV30f?
post #7340 of 10095
Quote:
Originally Posted by booga24 View Post

I know the Monument scene is right there, but what are the top 3 most challenging scenes in a movie?

Not sure which are the *most* but Pulse's Server Room scene is very demanding. I tested it in several locations and most often something goes wrong: grille rattles on the sub, sub buzzes on the floor, air ducts resonate, port noise, name it tongue.gif
post #7341 of 10095
Quote:
Originally Posted by Brian Fineberg View Post


just an FYI the ULF only has a GUESS at the xs30. it was never measured

I know what it is...and its a very educated guess. The **** is not rocket science brah.
post #7342 of 10095
Speaking of WOW "Pod Emerges" scene....while I've been tweaking my setup, I've been using that scene over and over again for testing.

I've noticed that the first two steps that the pod takes when crawling out of the hole sound a bit "flabby"...the bass seems to pulsate quickly 5 or 6 times immediately following each step. I've tried listening from -40 all the way up to reference, and the "flabby-ness" is there no matter what, I can only assume it's in the audio mix.

Anyone else familiar with this particular scene have the same experience, or is it somehow my system?
post #7343 of 10095
Quote:
Originally Posted by D Bone View Post

If he is listening at reference (0db) which I believe he is, then DEQ has no effect at all, so turning it off won't help. It sounds like the OP is fixating on "port noise" and will likely never be happy.............. This is the weirdest "official owners thread" that I have ever been a part of.

Fair enough...I was going off of what others ran into with DEQ turned on in another thread. Funny you mention weird when you are the first to ever say the XV sub looks better without base plate. tongue.gif
post #7344 of 10095
Quote:
Originally Posted by BeeMan458 View Post

The simple, you're asking too much out of too little. What have you considered regarding adding to your existing subwoofer system or upgrading a couple more levels up the subwoofer feeding chain? Have you considered adding a second XV15 or trading up to a XV30f?


Again I'm not asking for too much, my issue is not with limit of the sub but it's with the port noise. If the sub was sealed with no port noise I would be okay with it's limit/ output level or what ever you want to call it, I know there are no free luncheons but I'm willing to go with a lesser sub like xs15 so I don't hear port noise.

Again I love the sub and it's pressurize my room with ease but OHF is my demo movie and it hurts anytime I hear it.
post #7345 of 10095
Quote:
Originally Posted by booga24 View Post

Again I'm not asking for too much, my issue is not with limit of the sub but it's with the port noise.

---snip---

...but OHF is my demo movie and it hurts anytime I hear it.

The port noise is politely telling you, you've reach the limits of the subwoofer. You're moving air through the port. You're asking the subwoofer to move more air though the port than it's designed for. You have three choices. 1. Live with what you have. 2. Try to EQ your subwoofer so it won't be over driven. 3. Upgrade your system.

If OHF hurts someone's ears with what they have, because it sounds like crap, then they need more subwoofage. As always, based on available budget, it's their call what they're willing to live with.

Just saying, as we all know, hobbies are always about the Benjamins and how many of them a hobbyist is willing to throw at a problem. This metric applies to flying kites, knitting or buying outboard motors for a fancy pants bass boat.

-
Edited by BeeMan458 - 11/18/13 at 8:33am
post #7346 of 10095
Quote:
Originally Posted by basshead81 View Post

I know what it is...and its a very educated guess. The **** is not rocket science brah.

not sure how to take the "tone" of this being called "Brah" and all but I will take it as joking around..

either way. I KNOW its not rocket science...thus exactly why you are being contradictory, with saying I cant make assumptions...because its excatly what they did with their "educated" guess...either way you slice it is a assumption. Not sure why their assumptions are more valid then mine. but thats ok. wink.gif I know I have a good response (just as good as my previous xv15) with deeper and louder extension. I am not missing the 1db difference at 18hz Ill tell you that much smile.gif

cheers
post #7347 of 10095
According to the ULF thread a single XV15 numbers are 98.8dB@16hz and 105dB@20hz, while a single XS30 is 98.5dB@16hz and 104.8dB@20hz.

I would pretty much have to call bullsh!t on anyone that says they would be able to tell the difference between those two comparisons of numbers. From 25hz and up things are only going to favor the XS30, same goes for anything below 15hz.
post #7348 of 10095
Quote:
Originally Posted by Brian Fineberg View Post

not sure how to take the "tone" of this being called "Brah" and all but I will take it as joking around..

either way. I KNOW its not rocket science...thus exactly why you are being contradictory, with saying I cant make assumptions...because its excatly what they did with their "educated" guess...either way you slice it is a assumption. Not sure why their assumptions are more valid then mine. but thats ok. wink.gif I know I have a good response (just as good as my previous xv15) with deeper and louder extension. I am not missing the 1db difference at 18hz Ill tell you that much smile.gif

cheers

The XV15 has a 8db advantage over the XS15 around its port tunes. The XS30 has twice the displacement and 50% more power then the XS15 which is a 4.5db gain...that still leaves it down 3.5db to the XV15 around its tune. All XS and XV subs use the same drivers so its easy to extrapolate the data and make a educated gues.. The XS30 will still have more output below 15hz and above 25hz most likely. If you choose to not believe the data then thats on you but I think Dom did a great job putting that thread together and all of the Gurus tend to think its spot on. So until you provide some data showing otherwise, I am rolling with that thread, especially since the majority of it is based off of data-bass.com. smile.gif
post #7349 of 10095
Quote:
Originally Posted by BeeMan458 View Post

The port noise is politely telling you, you've reach the limits of the subwoofer. You're moving air through the port. You're asking the subwoofer to move more air though the port than it's designed for. You have three choices. 1. Live with what you have. 2. Try to EQ your subwoofer so it won't be over driven. 3. Upgrade your system.

If OHF hurts someone's ears with what they have, because it sounds like crap, then they need more subwoofage. As always, based on available budget, it's their call what they're willing to live with.

Just saying, as we all know, hobbies are always about the Benjamins and how many of them a hobbyist is willing to throw at a problem. This metric applies to flying kites, knitting or buying outboard motors for a fancy pants bass boat.

-

My Denon X4000 just arrived, I going to re calibrate my system tonight (I'm hoping it can help). If it does not care it, will send the xv15 back n go with a sealed xs30 or !!!!!!!!!.
post #7350 of 10095
Quote:
Originally Posted by basshead81 View Post

The XV15 has a 8db advantage over the XS15 around its port tunes. The XS30 has twice the displacement and 50% more power then the XS15 which is a 4.5db gain...that still leaves it down 3.5db to the XV15 around its tune. All XS and XV subs use the same drivers so its easy to extrapolate the data and make a educated gues.. The XS30 will still have more output below 15hz and above 25hz most likely. If you choose to not believe the data then thats on you but I think Dom did a great job putting that thread together and all of the Gurus tend to think its spot on. So until you provide some data showing otherwise, I am rolling with that thread, especially since the majority of it is based off of data-bass.com. smile.gif

my only problem at this point is I can t measure the xv15 since it is long gone...oh well

but i will take the data from the guys who designed the subs, not the guys who fabricated a rating system (although I think its great but I trust the engineers not the users)
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