Your Home Theater ULF Score - Page 95 - AVS | Home Theater Discussions And Reviews
Forum Jump: 
 150Likes
Reply
Thread Tools
post #2821 of 2830 Old 01-18-2015, 01:41 PM
AVS Special Member
 
Pain Infliction's Avatar
 
Join Date: Jun 2010
Location: Houston Texas
Posts: 3,255
Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 435 Post(s)
Liked: 252
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
 
post #2822 of 2830 Old 01-18-2015, 02:30 PM - Thread Starter
AVS Special Member
 
dominguez1's Avatar
 
Join Date: Dec 2008
Posts: 1,929
Mentioned: 7 Post(s)
Tagged: 0 Thread(s)
Quoted: 155 Post(s)
Liked: 220
Quote:
Originally Posted by jbrown15 View Post
I thought the data-bass 18.1 numbers are for the passive unit using Josh's amp?
Hmmm, good point. I'll look at db to see how many volts it was given...I'm guessing it wasn't that much relatively speaking, meaning the speaker power amp would have enough juice to compensate for the small box.
dominguez1 is online now  
post #2823 of 2830 Old 01-18-2015, 03:29 PM
AVS Special Member
 
raynist's Avatar
 
Join Date: Dec 2002
Location: Pittsburgh
Posts: 1,664
Mentioned: 10 Post(s)
Tagged: 0 Thread(s)
Quoted: 310 Post(s)
Liked: 388
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.
Supposedly the new T-18 has a bit more output than the original triax but I haven't seen any data posted yet. Someone mentioned they were told 1.5 more db's across the board. According to your estimates it is less powerful. I thought I heard Ricci was going to get one to test.
raynist is offline  
post #2824 of 2830 Old 01-18-2015, 04:14 PM - Thread Starter
AVS Special Member
 
dominguez1's Avatar
 
Join Date: Dec 2008
Posts: 1,929
Mentioned: 7 Post(s)
Tagged: 0 Thread(s)
Quoted: 155 Post(s)
Liked: 220
Quote:
Originally Posted by raynist View Post
Supposedly the new T-18 has a bit more output than the original triax but I haven't seen any data posted yet. Someone mentioned they were told 1.5 more db's across the board. According to your estimates it is less powerful. I thought I heard Ricci was going to get one to test.
I would agree that it has more overall output, but my guess that's more in the bass and upper bass ranges given what we've seen of the chase 18in eminence. In fact, it probably has some MASSIVE output in the upper ranges.

But, it wouldn't surprise me if this does have less output in the ULF range than the prior triax. The box is very small for 3 18's and the eminence driver in the chase wasn't a bottom feeder by any means.

Of course, we're comparing estimates to estimates; so really hard to say.
dominguez1 is online now  
post #2825 of 2830 Old Today, 01:01 PM
AVS Special Member
 
Sibuna's Avatar
 
Join Date: Apr 2010
Location: Western NY
Posts: 2,275
Mentioned: 21 Post(s)
Tagged: 0 Thread(s)
Quoted: 291 Post(s)
Liked: 353
I think I did this correctly
There is however no entry for the SI24 in a 15 CUFT sealed box so I just used the IB entry,


Click image for larger version

Name:	ulfscore.JPG
Views:	54
Size:	57.9 KB
ID:	504073

Last edited by Sibuna; Today at 01:09 PM.
Sibuna is offline  
post #2826 of 2830 Unread Today, 03:55 PM
AVS Special Member
 
Alan P's Avatar
 
Join Date: Jan 2003
Location: Rapid City, South Dakota
Posts: 3,590
Mentioned: 9 Post(s)
Tagged: 0 Thread(s)
Quoted: 1214 Post(s)
Liked: 613
A thing of beauty Sibuna!


AVR: Denon 4520ci, FL/R: Klipschorn, CC: Klipsch RC64ii, SUR: Polk LS F/X x 4, SUB: PSA T-18 x 2, DISP: Mitsubishi WD-73740, BluRay: PS3 & BDP-S5100, Remote: URC MX-700
--------------------------------------------------
Getting Started with REW
Audyssey 101
Audyssey FAQ
Alan P is online now  
post #2827 of 2830 Unread Today, 05:12 PM
AVS Special Member
 
Sibuna's Avatar
 
Join Date: Apr 2010
Location: Western NY
Posts: 2,275
Mentioned: 21 Post(s)
Tagged: 0 Thread(s)
Quoted: 291 Post(s)
Liked: 353
Sibuna is offline  
post #2828 of 2830 Unread Today, 07:16 PM - Thread Starter
AVS Special Member
 
dominguez1's Avatar
 
Join Date: Dec 2008
Posts: 1,929
Mentioned: 7 Post(s)
Tagged: 0 Thread(s)
Quoted: 155 Post(s)
Liked: 220
Quote:
Originally Posted by Sibuna View Post
I think I did this correctly
There is however no entry for the SI24 in a 15 CUFT sealed box so I just used the IB entry,
That's the correct one to use. I'm not sure why I have IB there in the name. It should just be the driver name...I'll fix in the next update. I believe @MKtheater put that sim together. He uses .707 for the box, which I believe is the optimal size? Not a sim person, so not sure what that means...

Quote:
Originally Posted by Alan P View Post
A thing of beauty Sibuna!

Solid score for 3 sealed subs! That nearfield 24 must be punishing...does your couch shake for the really low stuff (12.5hz and below)?

If you post your FR down to 5hz, I'll add you to the club and give you the 5hz ULF card badge...
dominguez1 is online now  
post #2829 of 2830 Unread Today, 07:33 PM - Thread Starter
AVS Special Member
 
dominguez1's Avatar
 
Join Date: Dec 2008
Posts: 1,929
Mentioned: 7 Post(s)
Tagged: 0 Thread(s)
Quoted: 155 Post(s)
Liked: 220
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.


Going once....twice....
Attached Thumbnails
Click image for larger version

Name:	T-18 and PS-18X.png
Views:	17
Size:	9.8 KB
ID:	505001  
dominguez1 is online now  
post #2830 of 2830 Unread Today, 10:22 PM
AVS Addicted Member
 
MKtheater's Avatar
 
Join Date: Jul 2006
Location: New Hartford, NY
Posts: 14,934
Mentioned: 7 Post(s)
Tagged: 0 Thread(s)
Quoted: 440 Post(s)
Liked: 555
You have been pretty good so far.

AVR-Yamaha A830
amps-5 Adcom 555 in 850 watt monoblock mode
sub amp-Sanway FP14K
LCR-Dual stacked BFM DR-250's
Surrounds- Dual stacked BFM W10's
subs-12 SI 18's ported 6hz.
MKtheater 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