Your Home Theater ULF Score - Page 94 - AVS Forum | Home Theater Discussions And Reviews
Baselworld is only a few weeks away. Getting the latest news is easy, Click Here for info on how to join the Watchuseek.com newsletter list. Follow our team for updates featuring event coverage, new product unveilings, watch industry news & more!


Forum Jump: 
 352Likes
Reply
 
Thread Tools
post #2791 of 3750 Old 12-26-2014, 11:29 AM
AVS Special Member
 
lukeamdman's Avatar
 
Join Date: May 2011
Location: Burnsville, MN
Posts: 2,221
Mentioned: 27 Post(s)
Tagged: 1 Thread(s)
Quoted: 490 Post(s)
Liked: 457
Quote:
Originally Posted by MKtheater View Post
It depends on setup, if you have a 4 ohm load the clone in bridged mode will blow up the driver. Matching impedance and power is key for proper setup. Some say the new sanways are 2 ohm stable but we need some testing for sure before we go nuts. I am running 8 SI 18's off of one channel in 2 ohm load and the other 4 off the other channel with a 4 ohm load. The key is design and how many real watts at what load is actually needed.
Of course.

When I had the clone amps about 3 years ago, Sanway was clear that the clones were not 2ohm stable, so attempting it didn't make much sense.

The clone in a 4ohm bridge is to much power long term, but i guarantee i could still clip it at 50hz and up on drum kicks without hurting that B&C driver.
lukeamdman is online now  
Sponsored Links
Advertisement
 
post #2792 of 3750 Old 01-17-2015, 11:08 AM
AVS Special Member
 
Brian Fineberg's Avatar
 
Join Date: Feb 2002
Posts: 6,157
Mentioned: 6 Post(s)
Tagged: 0 Thread(s)
Quoted: 2165 Post(s)
Liked: 1863
For some reason on my Mac the calculator won't work

Can someone plug this in for me:

Room - 1600
2- psa xs30
2- Uxl 18's

And

4 - uxl 18's

Thank you!
Brian Fineberg is offline  
post #2793 of 3750 Old 01-18-2015, 05:50 AM
Advanced Member
 
ahmedreda's Avatar
 
Join Date: Nov 2008
Posts: 628
Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 135 Post(s)
Liked: 77
Here you go.

Quote:
Originally Posted by Brian Fineberg View Post
For some reason on my Mac the calculator won't work

Can someone plug this in for me:

Room - 1600
2- psa xs30
2- Uxl 18's

And

4 - uxl 18's

Thank you!
Attached Thumbnails
Click image for larger version

Name:	BF4UXL.JPG
Views:	59
Size:	37.4 KB
ID:	485698   Click image for larger version

Name:	BF2U2P.JPG
Views:	48
Size:	37.4 KB
ID:	485706  
ahmedreda is online now  
post #2794 of 3750 Old 01-18-2015, 06:04 AM
AVS Special Member
 
Brian Fineberg's Avatar
 
Join Date: Feb 2002
Posts: 6,157
Mentioned: 6 Post(s)
Tagged: 0 Thread(s)
Quoted: 2165 Post(s)
Liked: 1863
Quote:
Originally Posted by ahmedreda View Post
Here you go.
Thank you!

So Selling the psa's and going 4 ulx18's will give me the best results

Thanks again!


And this is for sealed ulx 18's?
Brian Fineberg is offline  
post #2795 of 3750 Old 01-18-2015, 06:51 AM
Advanced Member
 
ahmedreda's Avatar
 
Join Date: Nov 2008
Posts: 628
Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 135 Post(s)
Liked: 77
Yes, I used "DIY, UXL-18 Sealed"
Quote:
Originally Posted by Brian Fineberg View Post
Thank you!

So Selling the psa's and going 4 ulx18's will give me the best results

Thanks again!


And this is for sealed ulx 18's?
ahmedreda is online now  
post #2796 of 3750 Old 01-18-2015, 07:07 AM
AVS Special Member
 
Brian Fineberg's Avatar
 
Join Date: Feb 2002
Posts: 6,157
Mentioned: 6 Post(s)
Tagged: 0 Thread(s)
Quoted: 2165 Post(s)
Liked: 1863
Sweet!!
Brian Fineberg is offline  
post #2797 of 3750 Old 01-18-2015, 07:36 AM
AVS Special Member
 
V.X.Donique's Avatar
 
Join Date: Jan 2004
Location: Black Mesa Research Facilities
Posts: 1,120
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 45 Post(s)
Liked: 41
Quote:
Originally Posted by Brian Fineberg View Post
Thank you!

So Selling the psa's and going 4 ulx18's will give me the best results

Thanks again!


And this is for sealed ulx 18's?
Do it Bri, you won't regret it.

MOAR BASS

V.X.Donique
Introducing the Vier Systems Xero.1/Midbasiks Subwoofer builds....
Creator of the AVScience DIY Speakers and Subwoofers Forum
"Don't concentrate on the finger or you will miss all that heavenly glory." -Bruce Lee
V.X.Donique is online now  
post #2798 of 3750 Old 01-18-2015, 07:43 AM
AVS Special Member
 
Brian Fineberg's Avatar
 
Join Date: Feb 2002
Posts: 6,157
Mentioned: 6 Post(s)
Tagged: 0 Thread(s)
Quoted: 2165 Post(s)
Liked: 1863
Quote:
Originally Posted by V.X.Donique View Post
Do it Bri, you won't regret it.

MOAR BASS
Oh I am . Gonna build two first see how I do
Brian Fineberg is offline  
post #2799 of 3750 Old 01-18-2015, 07:55 AM
AVS Special Member
 
bear123's Avatar
 
Join Date: Dec 2013
Location: PA
Posts: 3,865
Mentioned: 9 Post(s)
Tagged: 0 Thread(s)
Quoted: 1061 Post(s)
Liked: 1601
Quote:
Originally Posted by Brian Fineberg View Post
Oh I am . Gonna build two first see how I do
Might want to also consider the SI-HST18. It has higher maximum excursion capability. So when the UXL-18 is at its absolute max output level and is starting to bottom out and make noises, the HST-18 will produce that output with excursion left. At least, that's my understanding as I have been researching what the best mid-priced 18 would be for a 4 ft^3 sealed enclosure. Now, the first graph on data-bass makes them look very similar, but when you read closely you will see that the UXL was starting to complain at that drive level, and the HST-18 had several more db's in the tank before running out of excursion. Look at the max long term output before compression and the difference starts to show up.
bear123 is offline  
post #2800 of 3750 Old 01-18-2015, 08:05 AM
AVS Special Member
 
V.X.Donique's Avatar
 
Join Date: Jan 2004
Location: Black Mesa Research Facilities
Posts: 1,120
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 45 Post(s)
Liked: 41
Quote:
Originally Posted by bear123 View Post
Might want to also consider the SI-HST18. It has higher maximum excursion capability. So when the UXL-18 is at its absolute max output level and is starting to bottom out and make noises, the HST-18 will produce that output with excursion left. At least, that's my understanding as I have been researching what the best mid-priced 18 would be for a 4 ft^3 sealed enclosure. Now, the first graph on data-bass makes them look very similar, but when you read closely you will see that the UXL was starting to complain at that drive level, and the HST-18 had several more db's in the tank before running out of excursion. Look at the max long term output before compression and the difference starts to show up.
Yeah, but unless Nick will be doing a "Group Buy" on the HST18 that the UXL18 is going for, I think that's the reason Brian's going the UXL route.

Personally I'd go with the Zv4/HST myself, but these group buys only come once in a blue moon

V.X.Donique
Introducing the Vier Systems Xero.1/Midbasiks Subwoofer builds....
Creator of the AVScience DIY Speakers and Subwoofers Forum
"Don't concentrate on the finger or you will miss all that heavenly glory." -Bruce Lee
V.X.Donique is online now  
post #2801 of 3750 Old 01-18-2015, 08:18 AM
AVS Special Member
 
Brian Fineberg's Avatar
 
Join Date: Feb 2002
Posts: 6,157
Mentioned: 6 Post(s)
Tagged: 0 Thread(s)
Quoted: 2165 Post(s)
Liked: 1863
Exactly. It's only the group buy that enticed me
Brian Fineberg is offline  
post #2802 of 3750 Old 01-18-2015, 09:03 AM
AVS Addicted Member
 
MKtheater's Avatar
 
Join Date: Jul 2006
Location: New Hartford, NY
Posts: 15,722
Mentioned: 25 Post(s)
Tagged: 0 Thread(s)
Quoted: 856 Post(s)
Liked: 737
Quote:
Originally Posted by bear123 View Post
Might want to also consider the SI-HST18. It has higher maximum excursion capability. So when the UXL-18 is at its absolute max output level and is starting to bottom out and make noises, the HST-18 will produce that output with excursion left. At least, that's my understanding as I have been researching what the best mid-priced 18 would be for a 4 ft^3 sealed enclosure. Now, the first graph on data-bass makes them look very similar, but when you read closely you will see that the UXL was starting to complain at that drive level, and the HST-18 had several more db's in the tank before running out of excursion. Look at the max long term output before compression and the difference starts to show up.
It is called a higher x-mech. I am impressed with the quality of the even the SI-18HT.

Yamaha RX-A2030 and 4 Yamaha P2500s amps.
speakers- 9 Behringer B215XL's
subs- SI 18ht x12 IB powered by Sanway FP14K.
MKtheater is offline  
post #2803 of 3750 Old 01-18-2015, 09:52 AM - Thread Starter
AVS Special Member
 
dominguez1's Avatar
 
Join Date: Dec 2008
Posts: 2,182
Mentioned: 15 Post(s)
Tagged: 0 Thread(s)
Quoted: 335 Post(s)
Liked: 277
Time to estimate a couple of more subs' ULF performance:

Triax T-18
Reaction Audio PS-18x

Similar to the Chase Subs, the T-18 run a variant of the Eminence 18. Perhaps a starting point would be 3 Chase 18.1 (or 1.5 18.2s)?



For the PS-18X, perhaps similar performance to the UXL?



Thoughts? Sounds pretty reasonable to me.
Attached Thumbnails
Click image for larger version

Name:	T-18 Estimate.png
Views:	343
Size:	1.7 KB
ID:	486081   Click image for larger version

Name:	PS-18X Estimate.png
Views:	347
Size:	1.7 KB
ID:	486089  

Last edited by dominguez1; 01-18-2015 at 09:56 AM.
dominguez1 is offline  
post #2804 of 3750 Old 01-18-2015, 10:11 AM
AVS Special Member
 
Red99's Avatar
 
Join Date: Sep 2014
Location: Pacific Northwest
Posts: 1,085
Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 643 Post(s)
Liked: 415
I tried this calculator but it seems not to work on multiple subs. Unless I am doing something wrong.


Red99 is offline  
post #2805 of 3750 Old 01-18-2015, 10:17 AM
AVS Special Member
 
Pain Infliction's Avatar
 
Join Date: Jun 2010
Location: Houston Texas
Posts: 4,074
Mentioned: 6 Post(s)
Tagged: 0 Thread(s)
Quoted: 859 Post(s)
Liked: 422
Quote:
Originally Posted by Red99 View Post
I tried this calculator but it seems not to work on multiple subs. Unless I am doing something wrong.

What are you trying to calculate? I can do it for you.

room size?
subs?
quantity?
Pain Infliction is online now  
post #2806 of 3750 Old 01-18-2015, 10:17 AM - Thread Starter
AVS Special Member
 
dominguez1's Avatar
 
Join Date: Dec 2008
Posts: 2,182
Mentioned: 15 Post(s)
Tagged: 0 Thread(s)
Quoted: 335 Post(s)
Liked: 277
It does work for multiple subs. Just put the number of subs in the yellow cells to your corresponding sub, and it should calculate your score.
dominguez1 is offline  
post #2807 of 3750 Old 01-18-2015, 10:42 AM
AVS Special Member
 
Red99's Avatar
 
Join Date: Sep 2014
Location: Pacific Northwest
Posts: 1,085
Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 643 Post(s)
Liked: 415
I got it. I was putting in the number of subs at the top table and entering everything by hand. lol


Red99 is offline  
post #2808 of 3750 Old 01-18-2015, 10:43 AM - Thread Starter
AVS Special Member
 
dominguez1's Avatar
 
Join Date: Dec 2008
Posts: 2,182
Mentioned: 15 Post(s)
Tagged: 0 Thread(s)
Quoted: 335 Post(s)
Liked: 277
dominguez1 is offline  
post #2809 of 3750 Old 01-18-2015, 10:58 AM
AVS Special Member
 
jbrown15's Avatar
 
Join Date: Nov 2005
Location: Vancouver B.C.
Posts: 8,090
Mentioned: 21 Post(s)
Tagged: 0 Thread(s)
Quoted: 2242 Post(s)
Liked: 1700
Quote:
Originally Posted by bear123 View Post
Might want to also consider the SI-HST18. It has higher maximum excursion capability. So when the UXL-18 is at its absolute max output level and is starting to bottom out and make noises, the HST-18 will produce that output with excursion left. At least, that's my understanding as I have been researching what the best mid-priced 18 would be for a 4 ft^3 sealed enclosure. Now, the first graph on data-bass makes them look very similar, but when you read closely you will see that the UXL was starting to complain at that drive level, and the HST-18 had several more db's in the tank before running out of excursion. Look at the max long term output before compression and the difference starts to show up.
That's an easy opinion to have if you've never used or heard the UXL's in person. The simply fact is 99% of the guys even buying the UXL's from the group buy won't even be pushing them hard enough to even get close to max output. And in a sealed box you won't be pushing them to full excursion with an iNuke amp so you're not going to hear any bottoming out or loud noises.


In my ported cabinets my house started to show more stress then the UXL's did when really hammering them. I think the simply fact of the matter is that most guys using UXL's will be amp limited rather then driver limited.
jbrown15 is online now  
post #2810 of 3750 Old 01-18-2015, 11:00 AM
AVS Special Member
 
jbrown15's Avatar
 
Join Date: Nov 2005
Location: Vancouver B.C.
Posts: 8,090
Mentioned: 21 Post(s)
Tagged: 0 Thread(s)
Quoted: 2242 Post(s)
Liked: 1700
Quote:
Originally Posted by dominguez1 View Post
Time to estimate a couple of more subs' ULF performance:

Triax T-18
Reaction Audio PS-18x

Similar to the Chase Subs, the T-18 run a variant of the Eminence 18. Perhaps a starting point would be 3 Chase 18.1 (or 1.5 18.2s)?



For the PS-18X, perhaps similar performance to the UXL?



Thoughts? Sounds pretty reasonable to me.

Wouldn't three Chase 18.1 have large cabinet volume which would increase the really low end numbers compared to a Triax-18? If the cabinet of the Triax-18 is smaller it would have a little less output in the 10hz & 12.5hz ranges.
jbrown15 is online now  
post #2811 of 3750 Old 01-18-2015, 11:02 AM
AVS Special Member
 
jbrown15's Avatar
 
Join Date: Nov 2005
Location: Vancouver B.C.
Posts: 8,090
Mentioned: 21 Post(s)
Tagged: 0 Thread(s)
Quoted: 2242 Post(s)
Liked: 1700
Quote:
Originally Posted by Brian Fineberg View Post
Thank you!

So Selling the psa's and going 4 ulx18's will give me the best results

Thanks again!


And this is for sealed ulx 18's?

Brian, that was exactly the same thing that I did this time last year!....lol
Total deja vu, if you have the space you should serious consider building ported cabinets like what I did.


To give you an idea of the output difference between four sealed UXL's and four ported ones like I built in your room, here's the ULF score you'd have


Sealed:
286 @10z, 267 @12.5hz, 250 @16hz, 267 @20hz .


Ported:
444 @10hz, 154 @12.5hz, 78 @16hz, 182 @20hz .


That's a really big difference in the 12.5hz to 20hz range.

Last edited by jbrown15; 01-18-2015 at 11:10 AM.
jbrown15 is online now  
post #2812 of 3750 Old 01-18-2015, 11:06 AM - Thread Starter
AVS Special Member
 
dominguez1's Avatar
 
Join Date: Dec 2008
Posts: 2,182
Mentioned: 15 Post(s)
Tagged: 0 Thread(s)
Quoted: 335 Post(s)
Liked: 277
Quote:
Originally Posted by jbrown15 View Post
Wouldn't three Chase 18.1 have large cabinet volume which would increase the really low end numbers compared to a Triax-18? If the cabinet of the Triax-18 is smaller it would have a little less output in the 10hz & 12.5hz ranges.
Yes, but the T-18 offsets the small cabinet size with the high powered plate amp.
dominguez1 is offline  
post #2813 of 3750 Old 01-18-2015, 11:06 AM
AVS Special Member
 
Brian Fineberg's Avatar
 
Join Date: Feb 2002
Posts: 6,157
Mentioned: 6 Post(s)
Tagged: 0 Thread(s)
Quoted: 2165 Post(s)
Liked: 1863
Quote:
Originally Posted by jbrown15 View Post
Brian, that was exactly the same thing that I did this time last year!....lol
Total deja vu, if you have the space you should serious consider building ported cabinets like what I did.
Haha nice

Well im starting small with only two to add to my xs30's. So I want to stay sealed. Then I will build two more if the first two are to my liking
Brian Fineberg is offline  
post #2814 of 3750 Old 01-18-2015, 11:13 AM
AVS Special Member
 
jbrown15's Avatar
 
Join Date: Nov 2005
Location: Vancouver B.C.
Posts: 8,090
Mentioned: 21 Post(s)
Tagged: 0 Thread(s)
Quoted: 2242 Post(s)
Liked: 1700
Quote:
Originally Posted by dominguez1 View Post
Yes, but the T-18 offsets the small cabinet size with the high powered plate amp.
I thought the data-bass 18.1 numbers are for the passive unit using Josh's amp?
jbrown15 is online now  
post #2815 of 3750 Old 01-18-2015, 11:36 AM
AVS Special Member
 
Pain Infliction's Avatar
 
Join Date: Jun 2010
Location: Houston Texas
Posts: 4,074
Mentioned: 6 Post(s)
Tagged: 0 Thread(s)
Quoted: 859 Post(s)
Liked: 422
Quote:
Originally Posted by jbrown15 View Post
Brian, that was exactly the same thing that I did this time last year!....lol
Total deja vu, if you have the space you should serious consider building ported cabinets like what I did.


To give you an idea of the output difference between four sealed UXL's and four ported ones like I built in your room, here's the ULF score you'd have


Sealed:
286 @10z, 267 @12.5hz, 250 @16hz, 267 @20hz .


Ported:
444 @10hz, 154 @12.5hz, 78 @16hz, 182 @20hz .


That's a really big difference in the 12.5hz to 20hz range.
What is the port tune?
Pain Infliction is online now  
post #2816 of 3750 Old 01-18-2015, 11:38 AM
AVS Special Member
 
Brian Fineberg's Avatar
 
Join Date: Feb 2002
Posts: 6,157
Mentioned: 6 Post(s)
Tagged: 0 Thread(s)
Quoted: 2165 Post(s)
Liked: 1863
Quote:
Originally Posted by Pain Infliction View Post
What is the port tune?
And what is the cabinet size?
Brian Fineberg is offline  
post #2817 of 3750 Old 01-18-2015, 11:43 AM
AVS Special Member
 
3ll3d00d's Avatar
 
Join Date: Sep 2007
Location: London, UK
Posts: 1,429
Mentioned: 15 Post(s)
Tagged: 0 Thread(s)
Quoted: 751 Post(s)
Liked: 230
Quote:
Originally Posted by bear123 View Post
Now, the first graph on data-bass makes them look very similar, but when you read closely you will see that the UXL was starting to complain at that drive level, and the HST-18 had several more db's in the tank before running out of excursion. Look at the max long term output before compression and the difference starts to show up.
I don't follow your comment re max long term output. The long term data on data-bass says that the UXL has marginally more long term output <22Hz, marginally less til 35Hz and then ~3dB more through the mid bass. It looks to me more like they have similar output overall but the UXL needs less power to get there & the HST can take more abuse.
3ll3d00d is online now  
post #2818 of 3750 Old 01-18-2015, 12:21 PM
AVS Special Member
 
jbrown15's Avatar
 
Join Date: Nov 2005
Location: Vancouver B.C.
Posts: 8,090
Mentioned: 21 Post(s)
Tagged: 0 Thread(s)
Quoted: 2242 Post(s)
Liked: 1700
Quote:
Originally Posted by Brian Fineberg View Post
And what is the cabinet size?
Port tune was 14-15hz, all info can be found in my old build thread.
LTD-M18 Sub Build
jbrown15 is online now  
post #2819 of 3750 Old 01-18-2015, 12:34 PM
AVS Special Member
 
Brian Fineberg's Avatar
 
Join Date: Feb 2002
Posts: 6,157
Mentioned: 6 Post(s)
Tagged: 0 Thread(s)
Quoted: 2165 Post(s)
Liked: 1863
Quote:
Originally Posted by jbrown15 View Post
Port tune was 14-15hz, all info can be found in my old build thread.
LTD-M18 Sub Build
Cool

How do you tune a port? Those are waaaaay to big for my place
Brian Fineberg is offline  
post #2820 of 3750 Old 01-18-2015, 12:41 PM
AVS Special Member
 
Pain Infliction's Avatar
 
Join Date: Jun 2010
Location: Houston Texas
Posts: 4,074
Mentioned: 6 Post(s)
Tagged: 0 Thread(s)
Quoted: 859 Post(s)
Liked: 422
Quote:
Originally Posted by Brian Fineberg View Post
Cool

How do you tune a port? Those are waaaaay to big for my place
You don't tune the port. Port tune is what the sub is supposed to play down to before roll off begins. Port tune is made up of driver parameters, box size, port size, and amplification. Simulations can help you decide on your dimensions and amplification.
Pain Infliction is online now  
Sponsored Links
Advertisement
 
Reply Subwoofers, Bass, and Transducers

Tags
ae ib15 subwoofer , Bic Pl 200 Acoustech Platinum Series Subwoofer , Bowers Wilkins Asw 610 , Danley Sound Labs Dts 10 , Elemental Designs A7s 450 , Epik Empire , Fv15hp Subwoofer , Hsu Vtf 15h Subwoofer , Klipsch Sw 311 , Seaton Sound Submersive H P , Svs Pb12 Nsd Black Vinyl 12 Inch Powered Subwoofer , Svs Sb13 Ultra Piano Gloss 13 Inch 1000 Watt Powered Subwoofer , Velodyne Eq Max 15 15 Subwoofer

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