***Official HSU owners/support thread!*** - Page 163

Originally Posted by Kini62

Thank you so much for your time and help. Prewiring will need to be done before the drywall goes on- well before I can test anything out

I might just run a cable to the back anyway.

Is wireless an option with your subs?

Gene

Originally Posted by dr_hsu

Ah, sorry. Did not realize that it's under renovation! Yes, if that is the case, I would run the sub out to several locations just in case. Run one to the front right corner, and one to the back wall behind the sofa. The front location should not add much to the cost since I assume that you will be running speaker wires there.

We only have wireless in the ULS. The Subcast is always an option, but since you are wiring your room, I would definitely go for the wired option.

Originally Posted by Kini62

Thanks yet again!

Gene

Originally Posted by dr_hsu

Please post your room layout. Include details of adjoining rooms. Adding an MBM certainly would help greatly for punch in the back. With your room layout, we can determine if after adding the MBM, is there a more optimal location for your VTF-1.

Originally Posted by BB1111

Here is a picture of the room layout:




The red X are places that I've tried the sub and wasn't happy with the sound quality. Where I could fit the MBM easily is marked under the sub as well.-

The room has 8 foot ceilings in case that matters. This is also in a 7.1 setup with heights.

Originally Posted by dr_hsu

How large is the storage room? You are satisfied with the amount of deep bass? I feel that the amount of deep bass to mid bass may be unbalanced if you have an MBM plus a VTF-1. A VTF-3 MK4 where you have the VTF-1 might give you a more balanced amount of deep bass versus mid bass punch. If you have space on the other side of the sofa, you can place the VTF-1 there, or use the VTF-1 in your bedroom. Opening the door to the storage room can improve the low bass.

Originally Posted by BB1111

The storage closet is a small 4x3' space. I'm very happy with the low bass it's just the mid-bass punch in the chest that I'm missing. Having it on max output mode seems to help a little bit but not at the levels I was hoping for. I'm using the Polk Rti A series of speakers all around, with the A5s and A6 for L/R and Center, crossover is at 80hz on all speakers and LFE set to 120hz sub only. My trim levels from audyssey on the subwoofer come out at -0.5 correction. Should I get an SPL meter and see if everything is playing at 75db? It sounds great to me after a good deal of calibration but I would really like that punch back for gunshots, etc.

Also, the side walls are treated with broadband panels.

Thank you for your help

Originally Posted by dr_hsu

So, opening the storage room is not going to help much. Unless you set the VTF-1 at a much lower level compared to the MBM, the VTF-1 will distort before the MBM runs out of steam. If you do set the VTF-1 at a much lower level compared to the MBM, you may find the low bass lacking. Hence I think a VTF-3 MK4 might be a better option - you get much more mid bass output capability and has the low bass to match. If feasible, place the VTF-3 MK4 behind the sofa with the woofer firing directly into the back of your sweet spot on the sofa. Leave 2" space between the woofer and the back of the sofa. Set the VTF-3 MK4 to two ports open, EQ2, Q=0.3.

Originally Posted by BB1111

Thanks for the advice, I just bought the VTF-1 but if the VTF-3 is what I'll need to get the sound I'm looking for then that is what I'll need to get eventually.

But I guess it'll be cheaper this way over adding an MBM and having the two subwoofers to mess around with.

Also, how would the VTF-2 MK4 compare for my room versus the VTF-3? VTF-2 is more in the price range I would like to stay near.

Originally Posted by dr_hsu

I would sell the VTF-1 and get the VTF-3 MK4. That would make it cheaper than keeping the VTF-1 and adding a MBM. A VTF-3 MK4 is definitely more balanced than a MBM+VTF-1. Also, if you can have the VTF-3 MK4 behind the sofa with the woofer firing into the back of the sofa, you should get really strong impact. The VTF-2 MK4 may not be sufficient step up to justify the hassle. Since selling the VTF-1 and getting the VTF-3 MK4 is a less expensive route compared to what you intended to do, that should be doable for you, and within you planned budget.

Originally Posted by BB1111

In that case, can I have free shipping?

Originally Posted by BillyC26

http://www.amazon.com/BIC-America-F12-475-Watt-Subwoofer/dp/B0015A8Y5M/

So, I probably sound really dumb, but is this an HSU? I'm trying to buy one for my brother's birthday because that's what he wants, but when I looked on amazon this is what came up. Is a BIC an HSU??? could someone help me out lol

Originally Posted by BillyC26

http://www.amazon.com/BIC-America-F12-475-Watt-Subwoofer/dp/B0015A8Y5M/

So, I probably sound really dumb, but is this an HSU? I'm trying to buy one for my brother's birthday because that's what he wants, but when I looked on amazon this is what came up. Is a BIC an HSU??? could someone help me out lol

Originally Posted by BillyC26

http://www.amazon.com/BIC-America-F12-475-Watt-Subwoofer/dp/B0015A8Y5M/

So, I probably sound really dumb, but is this an HSU? I'm trying to buy one for my brother's birthday because that's what he wants, but when I looked on amazon this is what came up. Is a BIC an HSU??? could someone help me out lol

Originally Posted by rayven

Dr Hsu, I hope you are doing well. I'm impressed with your thoughfull time spent answering questions on this forum. I have a question if you could kindly respond. I am undecided betweenn the the uls15 or the vtf15. I listen to music and movies about an equal amount of time. My room is 20 x 30 which opens to a wet bar area, see attached pictures. Any suggestions if one is a better option?
Thanks in advance for your time.

Ray

Originally Posted by jsgrise

I know HSU recommands not to turn the volume knob over 9 o'clock, but I have to run it around 11 o'clock to get the bass I want. My sub is behing my couch at about 3' from the main LP and even at this volume, I don't really ear any distortion (except from the walls and windows). The receiver sub level is set at 0dB.

My question is how bad can this be for the subwoofer?

The funny think is that a friend of mine is running a VTF3.2 and can get as much bass with less gain in a similar size room...

Originally Posted by dr_hsu

That does not make any sense. Have you tried his sub in your room? In our 14 x 31 ft demo room, we have one 15H, volume at 1/3 of a tick up from minimum (1/3 of the way between minimum and the nine o'clock position), sub out level at -5 dB on a Pioneer VSX-1018 and the walls are shaking!

Can you send a sketch of your room? Please include adjoining room details if they are connected via doorways that are open when you are listening. Sketch in the listening location, where the sub is, and the distances from the listening spot to the nearest walls.

At that volume, you are pushing the sub pretty hard. Not the best for long term reliability, although the 15H can take that kind of beating better than any sub we know, but still not advisable. If you like that much bass, add a second one when you can. That would help a lot.

Originally Posted by dr_hsu

At that volume, you are pushing the sub pretty hard. Not the best for long term reliability, although the 15H can take that kind of beating better than any sub we know, but still not advisable.

Originally Posted by swgod98

Ok, so this doesn't make sense to me. If the knob goes all the away around to 6 o'clock (correct me if I'm wrong), how could the difference between 9 and 11 be considered bad for long term reliability?

Originally Posted by jsgrise


Dr. Hsu,

Thanks for your very fast response! I will post a layout of my room with pleasure. In the meantime, you can have a look at my room trough my "HT Setup" link in my signature. I didn't have the 15H at the time but twin DLS-5000r.

I never tried the VTF3.2 in my room but if I set the level at 9 o'clock on my VTF-15H, I will not ear much. I tryed almost every location, crawl test, phases, distance delay. I can't belive you only need to turn it up to 7:30... That is really really weird.

I chose nearfeild placement over far field corner because of the midbass suckout I had. I now have less low bass, but much more midbass impact.

I'll be in LA next week and I plan to pay you a visit and I can't wait to ear your demo room.

Originally Posted by Pinstripe


How was your previous sub? Maybe something is wrong with the setup or connection?

Originally Posted by jsgrise

Dr. Hsu,

Thanks for your very fast response! I will post a layout of my room with pleasure. In the meantime, you can have a look at my room trough my "HT Setup" link in my signature. I didn't have the 15H at the time but twin DLS-5000r.

I never tried the VTF3.2 in my room but if I set the level at 9 o'clock on my VTF-15H, I will not ear much. I tried almost every location, crawl test, phases, distance delay. I can't believe you only need to turn it up to 7:30... That is really really weird.

I chose nearfeild placement over far field corner because of the midbass suckout I had. I now have less low bass, but much more midbass impact.

I'll be in LA next week and I plan to pay you a visit and I can't wait to ear your demo room.

Originally Posted by jsgrise

I know HSU recommands not to turn the volume knob over 9 o'clock, but I have to run it around 11 o'clock to get the bass I want. My sub is behing my couch at about 3' from the main LP and even at this volume, I don't really ear any distortion (except from the walls and windows). The receiver sub level is set at 0dB.

My question is how bad can this be for the subwoofer?

The funny think is that a friend of mine is running a VTF3.2 and can get as much bass with less gain in a similar size room...

Originally Posted by oztech

To add to what was said what are your settings on the VTF.

Originally Posted by dr_hsu

Can you come Monday or Tuesday? I will be out of town from Wednesday through end of the following week (visiting my daughter at MIT during her Spring Break). You can see our setup in the demo room!

Originally Posted by sputter1

I have a pair of 15H's in a 4500^3 room and my AVR sub trim is at 0 and both my subs are shocking below 9:00.

Something funky is going on in your room. Unless you're living in a parking lot.

Originally Posted by jsgrise

Most of the time I run it 1port EQ1, but I sometime switch it to EQ2 and with two ports open. I usually keep the Q at 0.3



Unfortunately I'll be in LA from the 21st to the 28th. But I'm sure guys like Pete and Ryan will take good care of me, as usual



Are you on a wood floor, carpet over wood or carpet over concrete? I am carpet over concrete and by experience, it does take a lot more power the get the same feeling on concrete...