Official HSU ULS-15 Thread - Page 91 - AVS | 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: 
 4Likes
Reply
Thread Tools
post #2701 of 2729 Old 03-07-2014, 04:53 PM
AVS Special Member
 
shadyJ's Avatar
 
Join Date: May 2009
Posts: 7,828
Mentioned: 9 Post(s)
Tagged: 0 Thread(s)
Quoted: 802 Post(s)
Liked: 864
Quote:
Originally Posted by LowerFE View Post

There are 2 different ULS-15 drivers? What's the difference between the old and new drivers?

It looks like he is talking about the outgoing malfunctioning driver, and the replacement driver he received from Hsu.
shadyJ is online now  
Sponsored Links
Advertisement
 
post #2702 of 2729 Old 03-07-2014, 05:45 PM
AVS Special Member
 
AustinJerry's Avatar
 
Join Date: Jan 2003
Location: Austin, Texas
Posts: 9,519
Mentioned: 18 Post(s)
Tagged: 0 Thread(s)
Quoted: 2422 Post(s)
Liked: 1232
Quote:
Originally Posted by LowerFE View Post

There are 2 different ULS-15 drivers? What's the difference between the old and new drivers?

No. If you re-read Shadyj's post, he says IF there were a Mk II version--but there isn't.
AustinJerry is online now  
post #2703 of 2729 Old 04-08-2014, 12:58 PM
Member
 
ulysses191's Avatar
 
Join Date: Mar 2006
Posts: 76
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 9 Post(s)
Liked: 10
OK, noob here,
With much help from ShadyJ and others, just joined the ULS 15 Club!
And yes, me want more!

Previous thread started because wasn't sure if I should minimally upgrade my whole system or focus on just a sub.
Had a PA-120.

Background:

room size (remeasured) about 30ft by 20ft.
ULS now located nearfield, next to couch pointing forward (wireless)
And my couch is 12 ft. From front of TV.(82 inch mits dlp)

Finished reading through this thread and currently waiting on SPL meter for fine tuning.\

ULF Trim confuses me. And don't know if my room is considered, large or medium or small...
Had the ULF trim at 50, and volume level at 10 oclock.
MultEQ XT frrom Denon receiver set level at -0.5
tested again, trim set about 10 oclock, (close to 16)
and Audyssey set receiver to -5
But manually raised it to -2.
ShadyJ advised me to leave at 50 and wait on changes until I get the SPL meter, but couldn't resist..

Other speakers are JBL l830 Bookshelfs with crossover set at 80.

The lows sound great, but the mid bass a little lacking, and more so when trim was lowered.
Does that sound correct?

Shady already advised that I probably need 2 subs in my setup.

Would I get a fuller midbass with another ULS? or would an MBM12 fit the bill better.
With the one now I get deep and low rumbling watching movies like Tron and Intro to Prometheus. Couch and windows rattling. loved it, even got a little concerned about my 125 gallon reef tank on the back wall...
But right now seems like theres a "gap" between the real lows and the upper ranges.

Thanks for any help!
ulysses191 is offline  
post #2704 of 2729 Old 04-08-2014, 01:12 PM
Member
 
ulysses191's Avatar
 
Join Date: Mar 2006
Posts: 76
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 9 Post(s)
Liked: 10
rough room diagram


room.jpg 41k .jpg file
ulysses191 is offline  
post #2705 of 2729 Old 04-08-2014, 01:31 PM
AVS Special Member
 
shadyJ's Avatar
 
Join Date: May 2009
Posts: 7,828
Mentioned: 9 Post(s)
Tagged: 0 Thread(s)
Quoted: 802 Post(s)
Liked: 864
The Trim boosts the deep frequencies down to 15 Hz. The problem is that can end up pushing the woofer hard. It's not good for the woofer if you beat it up too much. The ULF Trim is for when you want flatter to deep bass response and don't intend to push the sub that hard. If you want to play it loud, just leave the trim at 50 Hz. If you want more mid bass, set the trim to 50 Hz, and run the sub hot in the receiver. This will put more accentuation on mid bass. The MBM-12 would definitely get you more mid bass, but your system might be pretty mid bass heavy at that point. I wouldn't get a MBM-12 until you have measured your room and can see your own response. That will tell you how beneficial a MBM-12 can be. If it were me, I would go for another ULS-15. You will still want to see your room response though, that will tell you what your weak spots are exactly, and it will help determine the best placement for the subs. (hell why not get both a MBM-12 and another ULS-15)
shadyJ is online now  
post #2706 of 2729 Old 04-08-2014, 01:42 PM
AVS Special Member
 
bear123's Avatar
 
Join Date: Dec 2013
Location: PA
Posts: 3,347
Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 712 Post(s)
Liked: 1175

You could have a null at your MLP at a particular mid bass frequency.  My advice would be to download REW from hometheatershack.com, order a Umik-1 mic from miniDSP and measure the room.  This will tell you if you have a null and need to change placement or add another sub.

bear123 is online now  
post #2707 of 2729 Old 04-08-2014, 03:48 PM
Member
 
ulysses191's Avatar
 
Join Date: Mar 2006
Posts: 76
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 9 Post(s)
Liked: 10
Thanks,
Will calibrate further with Spl. Can I use regular Spl with REW or do I need the umik 1?

Also, noob question, but if power level on sub is only at 10 o'clock, and gain on Receiver set to roughly 0. I can still drive the sub too hard?

Also, by setting sub at 50. I'd be sacrificing anything below that?

Thanks for your patience.
ulysses191 is offline  
post #2708 of 2729 Old 04-08-2014, 03:53 PM
Member
 
ulysses191's Avatar
 
Join Date: Mar 2006
Posts: 76
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 9 Post(s)
Liked: 10
I started last thread, saying Ive gone down the rabbit hole.
I'm deep in it now!
Lol.
I'll probably end up with dual drive and the mbm in the long run... Just waiting for my mind to realize it.
ulysses191 is offline  
post #2709 of 2729 Old 04-08-2014, 03:59 PM
AVS Special Member
 
AustinJerry's Avatar
 
Join Date: Jan 2003
Location: Austin, Texas
Posts: 9,519
Mentioned: 18 Post(s)
Tagged: 0 Thread(s)
Quoted: 2422 Post(s)
Liked: 1232
For guidance on using REW, there is a link in my signature. To use the SPL with REW, you would need to purchase an external USB sound card, and the setup is considerably more complex. Purchasing a USB mic is a long-term investment, and makes REW easy to set up. If you are serious about integrating your sub(s) and improving your bass, then analyzing your room's response is a must. And multiple subs always improve the smoothness of the response (I have four). I have never been a big fan of the MBM, feeling that you get better overall performance, and easier integration, by adding a second identical sub.

As for the ULS trim, my approach has always been to run Audyssey calibration with the trim set to 50. Post-calibration, you can get approximately 5dB boost below 50Hz by dialing the trim down to 16, kind of like a "house curve". I have never over-driven my ULS-15's by lowering the ULF trim. However, I prefer to keep it set to 50.
AustinJerry is online now  
post #2710 of 2729 Old 04-08-2014, 04:31 PM
AVS Club Gold
 
sdrucker's Avatar
 
Join Date: Feb 2006
Location: Chicago, IL
Posts: 2,411
Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 276 Post(s)
Liked: 186
Quote:
Originally Posted by AustinJerry View Post

For guidance on using REW, there is a link in my signature. To use the SPL with REW, you would need to purchase an external USB sound card, and the setup is considerably more complex. Purchasing a USB mic is a long-term investment, and makes REW easy to set up. If you are serious about integrating your sub(s) and improving your bass, then analyzing your room's response is a must. And multiple subs always improve the smoothness of the response (I have four). I have never been a big fan of the MBM, feeling that you get better overall performance, and easier integration, by adding a second identical sub.

As for the ULS trim, my approach has always been to run Audyssey calibration with the trim set to 50. Post-calibration, you can get approximately 5dB boost below 50Hz by dialing the trim down to 16, kind of like a "house curve". I have never over-driven my ULS-15's by lowering the ULF trim. However, I prefer to keep it set to 50.

You really love your HSUs, enough to have four of them tongue.gif.

IIRC didn't you ping Dr. Hsu about the MBM, when you were trying to improve the smoothness of your bass response after having the Dual Drive, and decided that overall, a second pair of ULS-15s up front was a better idea than the near field MBM/far field true sub approach?

Audio Gear: Sherwood R-972 (Trinnov Altitude - on order), NAD M27 amp
Display: Panasonic VT50, Lumagen Radiance Mini
Misc.: Oppo 103, Apple TV, JRiver ID NUC
PSB Imagine T2, Center, and Surrounds; HSU ULS-15 subs (2)
sdrucker is online now  
post #2711 of 2729 Old 04-08-2014, 04:40 PM
Member
 
ulysses191's Avatar
 
Join Date: Mar 2006
Posts: 76
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 9 Post(s)
Liked: 10
thank you AustinJerry,
Will get a usb mic.
And set to 50 and leave it alone till i can get concrete measurements...
ulysses191 is offline  
post #2712 of 2729 Old 04-08-2014, 06:21 PM
AVS Special Member
 
AustinJerry's Avatar
 
Join Date: Jan 2003
Location: Austin, Texas
Posts: 9,519
Mentioned: 18 Post(s)
Tagged: 0 Thread(s)
Quoted: 2422 Post(s)
Liked: 1232
Quote:
Originally Posted by sdrucker View Post

You really love your HSUs, enough to have four of them tongue.gif.

IIRC didn't you ping Dr. Hsu about the MBM, when you were trying to improve the smoothness of your bass response after having the Dual Drive, and decided that overall, a second pair of ULS-15s up front was a better idea than the near field MBM/far field true sub approach?

Maybe, I can't remember that far back. Being an Audyssey aficionado, I just don't know how to integrate the MBM properly.
AustinJerry is online now  
post #2713 of 2729 Old 07-02-2014, 12:54 PM
Member
 
osogovo's Avatar
 
Join Date: Nov 2005
Location: Sin city
Posts: 104
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 10 Post(s)
Liked: 17
Thumbs up Awesome costumer service

Very happy with how HSU handled the technical issues of my ULS-15.Power supply failed the other day.Called their technical department Leo was the technician that answered.He was very helpful and patient.Sent the amp 3 days later got it back.
Thank you HSU Research.
Great company.
RayWK likes this.

osogovo is offline  
post #2714 of 2729 Unread 01-19-2015, 01:59 PM
Member
 
ulysses191's Avatar
 
Join Date: Mar 2006
Posts: 76
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 9 Post(s)
Liked: 10
Thread Reboot:
I got the ULS 15 about a year ago and love it for how low and clean it goes. Recommended it to a friend who's upgrading his system from an 10 yr old outlaw. His room is about 24 long x 12 wide and 10ft tall.
He was researching and saw the new VTF 15H MK2 with glowing reviews for cheaper.
Can anyone chime in as to which way he should go?
Will be mainly for movies.
ulysses191 is offline  
post #2715 of 2729 Unread 01-19-2015, 02:18 PM
Advanced Member
 
dr_hsu's Avatar
 
Join Date: Feb 2007
Posts: 793
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 10 Post(s)
Liked: 40
Quote:
Originally Posted by ulysses191 View Post
Thread Reboot:
I got the ULS 15 about a year ago and love it for how low and clean it goes. Recommended it to a friend who's upgrading his system from an 10 yr old outlaw. His room is about 24 long x 12 wide and 10ft tall.
He was researching and saw the new VTF 15H MK2 with glowing reviews for cheaper.
Can anyone chime in as to which way he should go?
Will be mainly for movies.
Actually he should also consider the VTF-3 MK5 HP, which also received 5 star across the board and Top Pick from Sound and Vision, similar to the VTF-15H MK2, and costs quite a bit less. That is definitely our best bang for his bucks.
dr_hsu is offline  
post #2716 of 2729 Unread 01-19-2015, 02:40 PM
Member
 
ulysses191's Avatar
 
Join Date: Mar 2006
Posts: 76
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 9 Post(s)
Liked: 10
Thank you Dr.Hsu,
Cost aside, would you say the new VTF 15H is comparable in sound quality at lower levels as the ULS15?
ulysses191 is offline  
post #2717 of 2729 Unread 01-19-2015, 11:33 PM
Advanced Member
 
dr_hsu's Avatar
 
Join Date: Feb 2007
Posts: 793
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 10 Post(s)
Liked: 40
Quote:
Originally Posted by ulysses191 View Post
Thank you Dr.Hsu,
Cost aside, would you say the new VTF 15H is comparable in sound quality at lower levels as the ULS15?
Yes, very similar.
dr_hsu is offline  
post #2718 of 2729 Unread 01-20-2015, 08:06 PM
Member
 
Join Date: Nov 2014
Location: Austin Area
Posts: 26
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 13 Post(s)
Liked: 4
Quote:
Originally Posted by dr_hsu View Post
Actually he should also consider the VTF-3 MK5 HP, which also received 5 star across the board and Top Pick from Sound and Vision, similar to the VTF-15H MK2, and costs quite a bit less. That is definitely our best bang for his bucks.
Any advantages of going with 2 VTF-3 MK5 HPs vs. 1 VTF-15h MK2? I've got a room the is about 4800 cu-ft and a little oddly shaped.

Hoping not to need to go to 2 VTF-15h MK2s, but if I must...
budeliao is online now  
post #2719 of 2729 Unread 01-20-2015, 08:32 PM
Advanced Member
 
dr_hsu's Avatar
 
Join Date: Feb 2007
Posts: 793
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 10 Post(s)
Liked: 40
Quote:
Originally Posted by budeliao View Post
Any advantages of going with 2 VTF-3 MK5 HPs vs. 1 VTF-15h MK2? I've got a room the is about 4800 cu-ft and a little oddly shaped.

Hoping not to need to go to 2 VTF-15h MK2s, but if I must...
Up to 5 dB more output or more even bass distribution. As I have mentioned before, even bass distribution is not always best. Some spouses do not enjoy too much bass! Under those conditions, best to seat the spouse in a bass null and you sit in the optimal bass seat.
Gmash and RayWK like this.
dr_hsu is offline  
post #2720 of 2729 Unread 02-10-2015, 11:34 AM
Senior Member
 
Influence's Avatar
 
Join Date: Feb 2006
Location: NJ
Posts: 258
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 9 Post(s)
Liked: 18
Will there be an update to the ULS-15 (MkII?) in the near future?
Influence is offline  
post #2721 of 2729 Unread 02-13-2015, 07:05 AM
Senior Member
 
nakenergy's Avatar
 
Join Date: Aug 2002
Posts: 373
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 12 Post(s)
Liked: 13
Quote:
Will there be an update to the ULS-15 (MkII?) in the near future?
Same question. Have there been any changes at all to ULS-15 since its debut? I believe it has been 4 years now and will there be an update soon?
nakenergy is online now  
post #2722 of 2729 Unread 02-13-2015, 07:44 AM
AVS Special Member
 
shadyJ's Avatar
 
Join Date: May 2009
Posts: 7,828
Mentioned: 9 Post(s)
Tagged: 0 Thread(s)
Quoted: 802 Post(s)
Liked: 864
It's been longer than four years. The ULS launched in mid 2008, which makes it six and a half years old. I'd love to see a ULS mk2 as well, but with the recent launch of the VTF3 mk5 and VTF15h mk2, I am sure Hsu has their hands full at the moment.
shadyJ is online now  
post #2723 of 2729 Unread 02-13-2015, 08:16 AM
AVS Special Member
 
WhskyTangoFoxtrt's Avatar
 
Join Date: Nov 2008
Location: Fort Worth, TX
Posts: 1,434
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 70 Post(s)
Liked: 55
What would you update?

A Nice Radio Station with Great Music. For Those That Like That Sort of Thing: RadioParadise.com

WhskyTangoFoxtrt is offline  
post #2724 of 2729 Unread 02-13-2015, 08:33 AM
AVS Special Member
 
shadyJ's Avatar
 
Join Date: May 2009
Posts: 7,828
Mentioned: 9 Post(s)
Tagged: 0 Thread(s)
Quoted: 802 Post(s)
Liked: 864
First of all, I would remove the wireless connection or at least improve it. Too many users have had problems with the wireless. It worked fine for me for years, but recently I did start get popping noises which were only fixed by going to a hard wire connection. Second, I would probably remove the ULF Trim. It's actually a pretty nice feature once you understand it, but too many users misunderstand it, and it ends up putting a real strain on the driver. It's probably best left off the sub. It would be nice to see improvements to the driver and amp for more output, but that isn't critical since the ULS already does pretty good in that department. So my wishlist would basically be to either adjust, clarify, or remove some some of the amp features and also try to boost the raw performance of the sub.
shadyJ is online now  
post #2725 of 2729 Unread 02-13-2015, 09:08 AM
AVS Special Member
 
WhskyTangoFoxtrt's Avatar
 
Join Date: Nov 2008
Location: Fort Worth, TX
Posts: 1,434
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 70 Post(s)
Liked: 55
Quote:
Originally Posted by shadyJ View Post
First of all, I would remove the wireless connection or at least improve it. Too many users have had problems with the wireless. It worked fine for me for years, but recently I did start get popping noises which were only fixed by going to a hard wire connection. Second, I would probably remove the ULF Trim. It's actually a pretty nice feature once you understand it, but too many users misunderstand it, and it ends up putting a real strain on the driver. It's probably best left off the sub. It would be nice to see improvements to the driver and amp for more output, but that isn't critical since the ULS already does pretty good in that department. So my wishlist would basically be to either adjust, clarify, or remove some some of the amp features and also try to boost the raw performance of the sub.
The hurdle is how to use things like the ULF Trim with room EQ, like Audyssey.

I used the wireless adapter for a few years without problems. I also started to get interference and had the switch to interconnects.

Driver is pretty robust. The ULS' strength is in numbers (multiples) and it is easy to move for optimal placement.

A Nice Radio Station with Great Music. For Those That Like That Sort of Thing: RadioParadise.com

WhskyTangoFoxtrt is offline  
post #2726 of 2729 Unread 02-13-2015, 10:05 AM
AVS Special Member
 
shadyJ's Avatar
 
Join Date: May 2009
Posts: 7,828
Mentioned: 9 Post(s)
Tagged: 0 Thread(s)
Quoted: 802 Post(s)
Liked: 864
Quote:
Originally Posted by WhskyTangoFoxtrt View Post
The hurdle is how to use things like the ULF Trim with room EQ, like Audyssey.

I used the wireless adapter for a few years without problems. I also started to get interference and had the switch to interconnects.

Driver is pretty robust. The ULS' strength is in numbers (multiples) and it is easy to move for optimal placement.
One of the advantage of the ULF Trim is when you get into multiples as well. It comes in handy when it actually has headroom to work with. When there is no headroom, it asks too much of the driver. In multiples, headroom goes up, so you can bring the trim down. With the ULF Trim and enough ULS subs, it makes it easy to get ultra low bass regardless of room size. A lot of people have asked why Hsu doesn't bring out some kind of crazy flagship super sub, but they do have one: a ULS multi drive system!
shadyJ is online now  
post #2727 of 2729 Unread 02-13-2015, 11:27 AM
AVS Special Member
 
WhskyTangoFoxtrt's Avatar
 
Join Date: Nov 2008
Location: Fort Worth, TX
Posts: 1,434
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 70 Post(s)
Liked: 55
Quote:
Originally Posted by shadyJ View Post
...A lot of people have asked why Hsu doesn't bring out some kind of crazy flagship super sub, but they do have one: a ULS multi drive system!
I usually think the same thing too when I read that. I get the appeal of dual-opposed super 24" subwoofers -- shiny stuff sells -- but one of my favorite designs are the bossobass things. He uses 15" woofers and you just keep stacking more until until it hurts.
shadyJ likes this.

A Nice Radio Station with Great Music. For Those That Like That Sort of Thing: RadioParadise.com

WhskyTangoFoxtrt is offline  
post #2728 of 2729 Unread 02-13-2015, 11:55 AM
Senior Member
 
gamecock's Avatar
 
Join Date: Jun 2002
Location: Columbia, South Carolina
Posts: 283
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 9 Post(s)
Liked: 10
I just love this sub. I didn't expect much from the wireless but if it really worked I would be tempted to buy another . I am sure it is very environmentally dependent but mine random pop even on standby.
I got tired of trying to explain it to the family. However , this sub's sound and size makes it still my dream sub
gamecock is offline  
post #2729 of 2729 Unread 02-13-2015, 02:08 PM
Senior Member
 
wkingincharge's Avatar
 
Join Date: Jul 2009
Location: Maryland Area
Posts: 287
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 7 Post(s)
Liked: 21
There are many great subs on the market the ULS being one of them. When I received my first one and set it up based on what I read on AVS only a month went by before I went to the Dual Drive and then Tri Drive.
wkingincharge is offline  
Sponsored Links
Advertisement
 
Reply Subwoofers, Bass, and Transducers

Tags
Hsu Research Uls 15 Subwoofer



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