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This thread is intended for HSU Sub owners to help one another with their wonderful sub. With any luck, you will find HUS Sub employees helping to answer your questions.


Please remember...This thread is not intended to promote the line...but support it. It is with this spirit this thread has been opened.


It also is not intended to debate the line or be used to do A/B comparisons.


Thank you.


(This is something new we will try. Thus any manufacture is welcome to have us open a thread for the product as long as it will be for supporrt.)
 

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Great idea David. Being a Hsu owner for over 9 years I still have questions. And the question is.....My HT/family room is a rectangle. 11 feet wide and 22 feet long. The speakers and monitor are placed in the short end firing forward. The problem is one of the long walls opens up into the kitchen at the 9 foot mark. The kitchen itself has more volume than the HT room and also has openings into the dining room and center hall. Currently My 2 Hsu's are corner loaded behind each of my def tech bp-10s . Because of this open area into the kitchen would it be better to place both subs in 1 corner and if so would it be preferable to do so behind the left/kitchen/side wall or the full lenth wall. Right now I am fairly happy with the output but keep thinking it could be better. I realize I should do my own experimentation, however, It would be alot of work and I hope for a shortcut:). By the way the subs are being powered by 2 channels of my Sherbourn 5/1500 which puts out 200wpc at 8 ohms and 300wpc at 4 and I am using the bass optimizer box.


Frank
 

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Way to go David, this makes great sense!
 

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Thanks for thinking of me flatfooted, here goes:
Click here
 

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Billy,

I haven't tried max output mode. As far as I'm concerned I am definately getting enough output. :) I figured I'd milk the subs for their lowest of lows.
 

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This is probally a generic question on subs, but since I am specifically refering to the HSU VTF-3....



In the back of this monster are the speaker level inputs and the line level inputs.


The line level inputs (not amped) are RCA type jacks.


There are two of them.


The back kinda looks line this:


Line

L O
 

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David in this thread was wondering if the VTF series surface is really black. I though I should move it to this thread because this is now the official support thread. Many people have thought that the surface was grey, and not black, and that it might not match their equipment. I think this is because of the way the VTF-2 is almost always shot bathed in light due to studio lights, flash photography, etc., so I am putting up this picture that was shot in more natural light conditions that should better illustrate it.

http://www.hsuresearch.com/graphics/vtf3_context.jpg
 

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Regarding Franks question about positioning two subwoofers,


I asked Dr. Hsu about this, and it is best to place the two subs on the full length wall *without* the opening. In Franks case, this would be the right front corner, because the kitchen opens up on the left. I've heard this gives a 1-2 dB more and slightly cleaner output than when the subs are on opposite walls, but have not had a chance to test this using measurements.


Sasha
 

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Frank,


From what I understand, if you are sitting within the 9 foot mark before the room opens up, putting the sub on each corner and sitting symmetrically room width wise would cause odd order room width modes to cancel each other out. At the same time, you should still get the same room gain as if both subs are in the same corner. If you move out of center of room position, the modal cancellation would be gone, along with the equal energy gain from 2 subs.
 

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This really is a great idea for a thread and couldn't have come at a better time for me. I am now a very happy HSU owner because I just bought my VTF-2. Just one. :)


I do have two questions though, which relates to goodconsumer's question. I have a single subwoofer out on my receiver but on the back of HSU there are two line level inputs. Do I use the one marked MONO (the bottom one) or the top one? Does it really matter at all anyway? Why would anyone want to split a mono signal into a stereo signal? Ala "Y-Adapter"?


My second question relates to the X-Over. I have my set at 12 O'Clock. I think that is 60 hz. Will I really hear difference if I change that? Say make it 40 hz or even 90 hz?


Thanks and once again I think this is a great idea for a thread. :)
 

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lax01,


If you have a single sub output, just plug it into the mono input of the hsu.


Usually, one would bypass the sub's crossover if the receiver/preamp has bass management. It would usually be fixed at 80 or 100hz. The crossover is mainly used for 2ch bass-augmentation mode where you set the xo freq to where your main speakers starts to roll off, thereby adding extension to your mains.
 

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Sorry one more question. I have heard of filter and unfilter line level outs. What are these and how do you know if you have these? Thanks for all your help! :)
 

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I love my VTF-2 except for the Auto-Shutoff turning off during silent periods.


Is there a way to defeat this feature or even better, extend the delay before it turns off?


Thanks,
 

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Shajan,

What level do you have your sub output at on your receiver? If it is set too low you might want to try turning it up a bit and turning down the volume on the sub itself to offset it.
 
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