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***Official HSU owners/support thread!*** - Page 201

post #6001 of 6197
I would put the screen on the 11' 11 1/2" wall and a 15H in the front left corner to start. The nearly 28 ft width at the back end of the room means you will have great 20 Hz room gain over most of your viewing area.
post #6002 of 6197
Quote:
Originally Posted by dr_hsu View Post

I would put the screen on the 11' 11 1/2" wall and a 15H in the front left corner to start. The nearly 28 ft width at the back end of the room means you will have great 20 Hz room gain over most of your viewing area.

Thanks for the advice (you too ShadyJ;)). I was thinking of doing exactly as you suggest. I'm not very knowledgeable about sound, but are you saying that the 28ft open back end is actually a positive thing for bass?

Two more questions for you:

1) Will the 13" ceiling bumpdown running halfway through that space affect sound quality or localization (or sense of nearness) from the speakers? Does it matter that there is a large metal HVAC trunk running down that bumpdown which is pretty much resting on the top side of the ceiling drywall?

2) The other three orientations I was thinking about were:
  • putting the screen on the very bottom wall with the seating on the 10'8" wall where the closet door is
  • putting the screen on that 10'8" wall (where closet door is) and the seating on the very bottom wall
  • putting the screen on the very top 18' wall (covering the windows) and putting the seating back against the support beam
Should I cross any of these off the list for sound reasons?
post #6003 of 6197
Quote:
Originally Posted by Viche View Post

1) Will the 13" ceiling bumpdown running halfway through that space affect sound quality or localization (or sense of nearness) from the speakers? Does it matter that there is a large metal HVAC trunk running down that bumpdown which is pretty much resting on the top side of the ceiling drywall?

2) The other three orientations I was thinking about were:
  • putting the screen on the very bottom wall with the seating on the 10'8" wall where the closet door is
  • putting the screen on that 10'8" wall (where closet door is) and the seating on the very bottom wall
  • putting the screen on the very top 18' wall (covering the windows) and putting the seating back against the support beam
Should I cross any of these off the list for sound reasons?

The Bumpdown shouldn't affect anything. The HVAC trunk might vibrate from the bass thereby causing a distraction, depending on how it is installed. If it does you will want to put some kind of damping around it to hold it down. As for the other placements, try them all and see what works best. I wouldn't rule any out right away.
post #6004 of 6197
If you are not looking for two row seating, you should have the highest bass headroom in option two below (screen on 10' 8" wall, sit on the very bottom wall) - sitting against a wall boundary gives you the most bass support. You are also against the wall that has the strongest 20 Hz support. Place the sub in the front left corner (10' 8" and 11" 11 1/2" wall corner). Option 3 will put you in the null at 20 Hz.

Yes, the 28 ft back end will actually be beneficial for the ultra low bass!
Quote:
Originally Posted by Viche View Post

Thanks for the advice (you too ShadyJ;)). I was thinking of doing exactly as you suggest. I'm not very knowledgeable about sound, but are you saying that the 28ft open back end is actually a positive thing for bass?

Two more questions for you:

1) Will the 13" ceiling bumpdown running halfway through that space affect sound quality or localization (or sense of nearness) from the speakers? Does it matter that there is a large metal HVAC trunk running down that bumpdown which is pretty much resting on the top side of the ceiling drywall?

2) The other three orientations I was thinking about were:
  • putting the screen on the very bottom wall with the seating on the 10'8" wall where the closet door is
  • putting the screen on that 10'8" wall (where closet door is) and the seating on the very bottom wall
  • putting the screen on the very top 18' wall (covering the windows) and putting the seating back against the support beam
Should I cross any of these off the list for sound reasons?
post #6005 of 6197
I just bought the vtf 2 mk4, I will be using it with golden ear aons, my room is 15x18, use would be for music, but some ht, eventually a 5.1 setup, what would be the best settings as far as ports and eq, thanks
post #6006 of 6197
I just hooked up my vtf 2 mk4, set to eq 2, both ports open and volume at 9, very unhappy, distorted and boomy, tuned down volume to half way and changed the phase, helped some, but not much, my room is 15x18, sub is in a corner as advised, the volume of sub is to low, but if I turn it up even a little , it becomes boomy, in the next few days, I will try different placements and settings, but if I can't get it right , I will have to send it back, I am open to sugestions, thanks
post #6007 of 6197
Quote:
Originally Posted by panzer View Post

I just hooked up my vtf 2 mk4, set to eq 2, both ports open and volume at 9, very unhappy, distorted and boomy, tuned down volume to half way and changed the phase, helped some, but not much, my room is 15x18, sub is in a corner as advised, the volume of sub is to low, but if I turn it up even a little , it becomes boomy, in the next few days, I will try different placements and settings, but if I can't get it right , I will have to send it back, I am open to sugestions, thanks
Do you have an avr w/bass management (audyssey, etc)? If so, run it with the hsu gain knob at 9 o'clock. Then adjust the levels for each speaker with an SPL meter so they all measure 75db and the sub at 80db. You can use the SPL meter whether you have audyssey, etc or not.
post #6008 of 6197
Quote:
Originally Posted by panzer View Post

I just hooked up my vtf 2 mk4, set to eq 2, both ports open and volume at 9, very unhappy, distorted and boomy, tuned down volume to half way and changed the phase, helped some, but not much, my room is 15x18, sub is in a corner as advised, the volume of sub is to low, but if I turn it up even a little , it becomes boomy, in the next few days, I will try different placements and settings, but if I can't get it right , I will have to send it back, I am open to sugestions, thanks

I think you are confused about what is 9 o'clock setting - it's the first tick up from minimum, it's a lot lower than half way! You must have set it to 3 o'clock. Do post your room layout. Include the adjoining spaces if these are not closed off during listening. What are the other settings on the sub and on the receiver? Crossover frequency? What main speakers?
post #6009 of 6197
Would placement be more of an issue for the VTF2-2 MK4 or the VTF3-MK4. The VTF-2 is down firing and the VTF-3 is side firing. I need to be able to not place this next to the TV or front surrounds.
post #6010 of 6197
Bass is pretty much omnidirectional, so it is not critical which way the woofer faces. Why are you avoiding placing it next to the TV? Do post your room layout including adjoining spaces that are not closed off during listening.
post #6011 of 6197
^^^

Not that you need any backup dr_hsu wink.gif
But yes when I placed my second VTF-15H behind my couch a week ago, I literally could not tell it was back there... Well until the Enterprise kicked it into warp drive and my couch shook biggrin.gif
post #6012 of 6197
Quote:
Originally Posted by panzer View Post

I just hooked up my vtf 2 mk4, set to eq 2, both ports open and volume at 9, very unhappy, distorted and boomy, tuned down volume to half way and changed the phase, helped some, but not much, my room is 15x18, sub is in a corner as advised, the volume of sub is to low, but if I turn it up even a little , it becomes boomy, in the next few days, I will try different placements and settings, but if I can't get it right , I will have to send it back, I am open to sugestions, thanks
I now have sub tuned in, all is well, seems also like the sub needs to break in some, I will keep it, thanks for sugestions.
post #6013 of 6197
Quote:
Originally Posted by panzer View Post

I now have sub tuned in, all is well, seems also like the sub needs to break in some, I will keep it, thanks for sugestions.

Glad to hear that! biggrin.gif
post #6014 of 6197
Today I purchased a used STF-2 to replace my Polk psw505, and what a difference. I watched the Battle of Pelennor Fields twice, first with the Polk and a second time with the Hsu. I couldn't believe how much cleaner the bass sounded. It really sounded like galloping horses and giant oliphants rather than general rumble.

I have a question about placement. I've read conflicting opinions about placing subs in the corner. Some say it's needed to reinforce the bass, but some say that wall placement is enough and corner placement makes the bass muddy/boomy. Should I move my sub from beside wooden tv stand to the front left corner or keep it where it is?

I've included a picture of my apartment layout with the wall lengths. The walls are to scale, but furniture is approximate. I do have DIY acoustic panels behind the front speakers, 3 on the left wall at first reflection points, and a 6th panel on the left wall next to the surround. Fronts and surrounds are DefTech SM350 and center is DefTech CLR 2002.

post #6015 of 6197
I'm going to go look at a used VTF-3 today... I think it's the original make but I was hoping for some opinion from you guys here.
Here's the listing with pictures:
http://rochester.craigslist.org/ele/4197291029.html

He's not the original owner and he doesn't have the port plug, so there's no way I'd pay the $350.

Does anyone own one of these originals? What price would make this a worthwhile purchase to replace my Polk PSW505?

Thanks
post #6016 of 6197
I recently bought a used VTF3-MKII and I am having a hard time calibrating it. I have a really small room 10*11*8. I am using a Denon AVR -1712. When I first ran Audessy to calibrate it I selected a gain of 11 but Audessy would set the sub at -12 so I kept dialing it down until I had to set it to 7 or so (just a notch up the minimum) Once I did that Audessy set the sub to -6 so I upped the gain to 9 and the sub to -7 but I do not really like the results. Could it be my room is too small and cluttered (It is a bedroom)?? It does not sound terrible but I think I should be getting more. I have one port plugged in and the switch accordingly. I will unplug it and chabge the switch and see if that makes a difference. I will appreciate any suggestions.
post #6017 of 6197
Quote:
Originally Posted by Quino27 View Post

I recently bought a used VTF3-MKII and I am having a hard time calibrating it. I have a really small room 10*11*8. I am using a Denon AVR -1712. When I first ran Audessy to calibrate it I selected a gain of 11 but Audessy would set the sub at -12 so I kept dialing it down until I had to set it to 7 or so (just a notch up the minimum) Once I did that Audessy set the sub to -6 so I upped the gain to 9 and the sub to -7 but I do not really like the results. Could it be my room is too small and cluttered (It is a bedroom)?? It does not sound terrible but I think I should be getting more. I have one port plugged in and the switch accordingly. I will unplug it and chabge the switch and see if that makes a difference. I will appreciate any suggestions.



Where do you have your sub placed?
post #6018 of 6197
It is on the front, to the left of the center. I have it set to the side with back pointing to the right. I do not have much space so I do not really have many placement choices. I upgraded from a Velodine 12" and it was on the same position and it sounds better but I was expecting more I guess
post #6019 of 6197
Quote:
Originally Posted by Quino27 View Post

It is on the front, to the left of the center. I have it set to the side with back pointing to the right. I do not have much space so I do not really have many placement choices. I upgraded from a Velodine 12" and it was on the same position and it sounds better but I was expecting more I guess



I would try different spots in your room, possibly a corner. I'm assuming your getting some reflections from the hard surfaces of dressers and other furniture in your bedroom. Where do you listen to your setup from your bed? I'm asking because you could do a sub crawl fairly easy in that room.
post #6020 of 6197
I listen to music mostly from my chair (I have a desk I work from) and then TV and movies mostly from my bed. Problem is I really do not have many placement choices. It is either in the front or the side of the bed but it would obstruct the closet doors.
Also, at what gain do you guys run the HSU subs. I though 7 was way too low. 9 it is still kind of low and I might up it a bit to 10 maybe
post #6021 of 6197
Quote:
Originally Posted by Quino27 View Post

I listen to music mostly from my chair (I have a desk I work from) and then TV and movies mostly from my bed. Problem is I really do not have many placement choices. It is either in the front or the side of the bed but it would obstruct the closet doors.
Also, at what gain do you guys run the HSU subs. I though 7 was way too low. 9 it is still kind of low and I might up it a bit to 10 maybe



Maybe Dr Hsu will read this and comment. I think most of us have ours at around the 9 o:clock position mine is just a tad lower than that. Your better off leaving it where you set it while running Audyssey and bumping it up in your AVR. I bump mine as much as 6 or 8db depending on the source. I'm not familiar with that model sub, where is the woofer on the side? I have a different model than you.

Edit;
Before I bought my 2 15H's a little while ago I had a def tech sub. I think that I was so used to the boomy bass from it, that when I switched to the Hsu sub I had to get used to what bass is supposed to sound like. I hope this makes sense.
Edited by comfynumb - 11/18/13 at 4:16pm
post #6022 of 6197
Quote:
Originally Posted by comfynumb View Post


Maybe Dr Hsu will read this and comment. I think most of us have ours at around the 9 o:clock position mine is just a tad lower than that. Your better off leaving it where you set it while running Audyssey and bumping it up in your AVR. I bump mine as much as 6 or 8db depending on the source. I'm not familiar with that model sub, where is the woofer on the side? I have a different model than you.

Edit;
Before I bought my 2 15H's a little while ago I had a def tech sub. I think that I was so used to the boomy bass from it, that when I switched to the Hsu sub I had to get used to what bass is supposed to sound like. I hope this makes sense.

If you just got your new sub,give it awhile to break in. 

post #6023 of 6197
It is a downfire 12" sub. 350 watt RMS 1400 peak

http://www.hsuresearch.com/products/vtf-3.html

It is similar to a VTF-2 MK4 but with a little more power in the amp.

Where I have the sub is like a box made up a dresser my bed and a center table. It is less than a feet to the right of the dresser. Just like 5" to the left of the center table. to the north is the wall and it is just like 1-2" from the wall. to the south is the bed and it has less than 2' of space. So it is boxed pretty good and that might be my problem but it seems bigger with the HSU than with the Velodine
Edited by Quino27 - 11/18/13 at 9:32pm
post #6024 of 6197
Quote:
Originally Posted by PcGeek626 View Post

If you just got your new sub,give it awhile to break in. 

I bought it used smile.gif I am convinced is the poor layout in my room and the lack of space that is affecting it frown.gif
post #6025 of 6197
K here are some pics of the sub location:






and no the sub did not have those scratches when I bought it. When I went and picked it up I made those when putting in the trunk of my small car and when I took it out frown.gif Once I have it set up properly I will see how can I fix those
Edited by Quino27 - 11/18/13 at 9:34pm
post #6026 of 6197
Quote:
Originally Posted by Quino27 View Post

K here are some pics of the sub location:






and no the sub did not have those scratches when I bought it. When I went and picked it up I made those when putting in the trunk of my small car and when I took it out frown.gif Once I have it set up properly I will see how can I fix those



If you could post a pic of the front wall and surrounding areas it would help smile.gif
post #6027 of 6197
Do not have space in front. Here are some pics of the front and the other place where I could place the sub if I get a long enough RCA cable.



post #6028 of 6197
Quote:
Originally Posted by Quino27 View Post

Do not have space in front. Here are some pics of the front and the other place where I could place the sub if I get a long enough RCA cable.






I'm not sure where I'd put it. Just try different placements and do what you can I guess. Tough call.
post #6029 of 6197
Probably during the weekend will try to move the dresser from the front to the back of the room and place the sub to the right where the dresser is and it will have more space around it.
post #6030 of 6197
new but not new to the forum, guess ive been a member for over 3years. anyways just upgraded to a vtf2 mk4 from a bic f12. ive never bought any audio gear without testing but after reading on here i pulled the trigger. should be here monday 11/25.
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