The Official HSU VTF-15H Thread - Page 176 - AVS Forum | Home Theater Discussions And Reviews
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post #5251 of 5280 Old 02-15-2015, 11:06 AM
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Okay, I have a noob question regarding the Volume/gain on the subwoofer. I have been unable to find an aswer with searching, but I am sure it is because of my search method. The volume knob in the back of the VTF-15H has 8 marks, MIN at approx 7 o'clock and MAX at approx 5 o'clock. When I am adjusting the volume, is it an additive increase in volume, or is it multiplicative?

For example, if I turn the volume to MIN, is there 0% output, and turning it up to the 12 o'clock position and I running at 50%, and at max I am running it at 100% output? -OR-
If I have the volume at MIN, it is at baseline output, and turning the volume up adds more volume, like increasing the dB adjustment on the receiver subwoofer channel?
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post #5252 of 5280 Old 02-15-2015, 12:06 PM
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Ummm...interesting, hadn't considered that...

Generic HSU Answer, set to 9'oclock, run Audessy/MCAAC/Whatever and forget it?

Set slightly lower if your calibration software bottoms out the setting, IE -12 or whatever the lowest is.

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post #5253 of 5280 Old 02-18-2015, 09:01 AM
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The gain knobs on the HSU subs are highly sensitive and Ive read that they generally need no where near 12 oclock for high power. My two VTF15's are about 8:45 to 9.

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post #5254 of 5280 Old 02-18-2015, 09:08 AM
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Quote:
Originally Posted by gadgtfreek View Post
The gain knobs on the HSU subs are highly sensitive and Ive read that they generally need no where near 12 oclock for high power. My two VTF15's are about 8:45 to 9.
Which makes me think that it is more additive. It was frustrating me thinking that I am running it at like 10% with the volume knob just below the 9 o' clock position.

It's like having a GT500 Mustang and being told to only push the gas pedal a little bit because the tires might break loose.
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post #5255 of 5280 Old 02-18-2015, 09:11 AM
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Yeah, you are getting way more than 10% juice with the lower setting. My VTF2 was the same way.

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post #5256 of 5280 Old 02-18-2015, 09:40 AM
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Quote:
Originally Posted by Spazdoc View Post
Okay, I have a noob question regarding the Volume/gain on the subwoofer. I have been unable to find an aswer with searching, but I am sure it is because of my search method. The volume knob in the back of the VTF-15H has 8 marks, MIN at approx 7 o'clock and MAX at approx 5 o'clock. When I am adjusting the volume, is it an additive increase in volume, or is it multiplicative?

For example, if I turn the volume to MIN, is there 0% output, and turning it up to the 12 o'clock position and I running at 50%, and at max I am running it at 100% output? -OR-
If I have the volume at MIN, it is at baseline output, and turning the volume up adds more volume, like increasing the dB adjustment on the receiver subwoofer channel?
We built in a lot of gain in our amplifiers. The fact that the volume is at 5% or 10% of the rotation does not mean you are not driving it to full power a lot of times.

The volume control is on a log scale. The difference between say 9 o'clock and 12 o'clock is on the order of 30 dB if I remember correctly.
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post #5257 of 5280 Old 02-18-2015, 07:18 PM
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Scored a B-Stock VTF-15 H and it arrived yesterday, I was happy to find it in flawless condition. The bass is amazing, the included CD is very cool! I might have to work on placement, or move my couch up a little as it's currently in the center of the room, gonna mess around with that this weekend. I'm extremely happy and lucky to catch the B-Stock otherwise this would have been outside my price range, thanks HSU!

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post #5258 of 5280 Old 02-18-2015, 07:26 PM
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Originally Posted by Zodduska View Post
Scored a B-Stock VTF-15 H and it arrived yesterday, I was happy to find it in flawless condition. The bass is amazing, the included CD is very cool! I might have to work on placement, or move my couch up a little as it's currently in the center of the room, gonna mess around with that this weekend. I'm extremely happy and lucky to catch the B-Stock otherwise this would have been outside my price range, thanks HSU!




Welcome to the Fam. I love my twin 15H's.


Your seat being in the middle of the room probably isn't the best idea as far as bass response goes.


Very, very nice setup though.

Projector: Benq W1070 1080p 2D/3D
Screen: 120" Elite fixed frame
AVR: Onkyo TX-NR809
Mains: Klipsch RF-62ii x 2
Center: Klipsch RC-62ii
Surrounds: Klipsch RS-42ii x 2
Subs: Dual Hsu VTF-15H's
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post #5259 of 5280 Old 02-18-2015, 08:11 PM
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Thanks! I agree, even leaning forward a bit sounds better.
The room is 28x15 with open doorways on the left at either end (to the kitchen and hallway), entertainment center is on the narrow wall. Only options for sub placement is current or behind the couch (which is currently center of the room) so I'm fairly limited.
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post #5260 of 5280 Old 02-18-2015, 09:29 PM
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Quote:
Originally Posted by Zodduska View Post
Scored a B-Stock VTF-15 H and it arrived yesterday, I was happy to find it in flawless condition. The bass is amazing, the included CD is very cool! I might have to work on placement, or move my couch up a little as it's currently in the center of the room, gonna mess around with that this weekend. I'm extremely happy and lucky to catch the B-Stock otherwise this would have been outside my price range, thanks HSU!
Was this a refurbished unit?
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post #5261 of 5280 Old 02-18-2015, 09:48 PM
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Was this a refurbished unit?
I'm not sure, it was listed as B-Stock which I assume are mostly 30 day trial returns.
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post #5262 of 5280 Old 02-19-2015, 07:36 AM
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Here's the room layout.

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post #5263 of 5280 Old 02-19-2015, 11:34 AM
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We have similar tastes


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post #5264 of 5280 Old 02-19-2015, 11:52 AM
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Sweet setup gadgtfreek! I'll try not to be too jealous of your 2nd VTF-15 Haha.

I just bought the Klipsch a week before the sub, they're pretty awesome too.. Mine are the RF-62 ii and RC-52 ii
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post #5265 of 5280 Old 02-19-2015, 02:19 PM
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Nice. I have the RF82II and RC-62II.

I love the Klipsch sound.

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post #5266 of 5280 Old 02-20-2015, 05:21 AM
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I have older Klipsch KLF series but yeah I love how they sound as well with the VTF.

Welcome to the HSU family Zodduska!

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post #5267 of 5280 Old 02-20-2015, 11:11 AM
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Thanks guys!

I moved the couch up about 20" last night and re-ran Audyssey in 1 port, EQ1 Q=7, set the crossovers on the Klipsch to 80Hz and boosted the VTF-15H by 4db (Audyssey set it to -8db)
Afterwards I listened to the first track on the test disk again and I could hear the low organ stuff more than before, the closet door opposite the sub was rattling like crazy.. shoving a towel under it tamed it nicely.
Then I fired up Oblivion on Blu-Ray, sounded great with thunderous bass when the transport ship lands although I ended up turning the Q down to 5 to blend it a little better with the other speakers.

Finally finished reading this entire thread and I want to say thank you to everyone for contributing to it, it really helped me understand the different modes and everything this fine sub is capable of. I'm getting an itch to buy a $130 SPL meter but part of me just wants to be done and be happy with it, I'm sure that would help with the WAF..

edit: ugh.. CM-140 will be here tomorrow.

Last edited by Zodduska; 02-20-2015 at 11:48 AM.
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post #5268 of 5280 Old 02-21-2015, 08:46 AM
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Oblivion is an awesome sounding movie! If you have the movie War of the Worlds (Spielberg one) fast forward to the Pod emergence scene and watch your VTF get a work out!

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post #5269 of 5280 Old 02-21-2015, 11:22 AM
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Yeah, the pod emergence is some tremendous LFE.

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Denon AVR-4520CI
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post #5270 of 5280 Old 02-21-2015, 11:57 AM
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When doing the sub crawl test to find the best location's to put the sub's, do we need to use the same sub that we are going to use? I have an older 10" sub that I used because it is much easier to lift/handle, but now question if that is an accurate way to do it.

I wanted to ask what you guy's thought, before I go through the work of trying to lift the 15h into the chair, if its not necessary.
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post #5271 of 5280 Old 02-21-2015, 12:41 PM
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When doing the sub crawl test to find the best location's to put the sub's, do we need to use the same sub that we are going to use? I have an older 10" sub that I used because it is much easier to lift/handle, but now question if that is an accurate way to do it.

I wanted to ask what you guy's thought, before I go through the work of trying to lift the 15h into the chair, if its not necessary.
I would use same sub. I purchased a wireless sub kit made by Rocketfish. They are at BestBuy. I highly recommend it, I can't tell any difference.

Can someone please tell me how to use a SPL to find best output sub location? Would I just play the 70db test tones on HSU cd, set spl to 70 and C weight- then see where it reads highest db's?

What setting would you recommend for VTF3 MK5 in a 2600 cubic feet room? Listen to 90% TV/Cable and 10% Vudu/Blueray? Eq2, 0.3q, 3 inch port open?
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post #5272 of 5280 Old 03-02-2015, 07:17 AM
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Oblivion is an awesome sounding movie! If you have the movie War of the Worlds (Spielberg one) fast forward to the Pod emergence scene and watch your VTF get a work out!
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Originally Posted by gadgtfreek View Post
Yeah, the pod emergence is some tremendous LFE.
Heck yeah! I had some people over this weekend and cranked that WOTW scene with the sub boosted a few extra dB in max headroom mode, (-8 dB master volume on my Denon) felt like it was emerging into my living room! A friend sitting about five feet away from the VTF-15H commented that it was moving his pant legs. Probably freaked the neighbors out a bit!
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Last edited by Zodduska; 03-02-2015 at 07:23 AM.
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post #5273 of 5280 Old Today, 10:07 AM
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Hello there! I wanted to pick up another vtf 15h in black to match the one I already have. I don't see it on the hsu website. Are they gone?
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post #5274 of 5280 Old Today, 05:36 PM
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Hello there! I wanted to pick up another vtf 15h in black to match the one I already have. I don't see it on the hsu website. Are they gone?
http://www.hsuresearch.com/products/vtf-15h.html

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post #5275 of 5280 Old Today, 06:31 PM
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Hello there! I wanted to pick up another vtf 15h in black to match the one I already have. I don't see it on the hsu website. Are they gone?
While they are only showing the single VTF-15H mk1 in Rosewood on thier site they do show the dual drive VTF-15H mk1 in black. I would call them because if the dual drive is available in black which is just two VTF-15H subs they must have them.

"What do you mean it's too loud? My ears aren't even bleeding yet!"

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post #5276 of 5280 Old Today, 06:37 PM
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While they are only showing the single VTF-15H mk1 in Rosewood on thier site they do show the dual drive VTF-15H mk1 in black. I would call them because if the dual drive is available in black which is just two VTF-15H subs they must have them.
I don't see that.
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post #5277 of 5280 Old Today, 06:41 PM
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I don't see that.
Under True Subwoofer on the main page, the dual drive is right undet the VTF-15H http://www.hsuresearch.com/products/vtf-15Dual.html There are seprate links for VTF-15H dual drive and VTF-15H mk2 dual drive.

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post #5278 of 5280 Old Today, 06:43 PM
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While they are only showing the single VTF-15H mk1 in Rosewood on thier site they do show the dual drive VTF-15H mk1 in black. I would call them because if the dual drive is available in black which is just two VTF-15H subs they must have them.
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Under True Subwoofer on the main page, the dual drive is right undet the VTF-15H http://www.hsuresearch.com/products/vtf-15Dual.html There are seprate links for VTF-15H dual drive and VTF-15H mk2 dual drive.
Right-but where do you see "satin black" other than in the picture?
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post #5279 of 5280 Old Today, 07:32 PM
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Right-but where do you see "satin black" other than in the picture?
You're right. The dual drive has the satin black picture, but the description and price on the right are for Rosenut. I guess someone forgot to change the picture.

"What do you mean it's too loud? My ears aren't even bleeding yet!"

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post #5280 of 5280 Old Today, 08:55 PM
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While they are only showing the single VTF-15H mk1 in Rosewood on thier site they do show the dual drive VTF-15H mk1 in black. I would call them because if the dual drive is available in black which is just two VTF-15H subs they must have them.
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You're right. The dual drive has the satin black picture, but the description and price on the right are for Rosenut. I guess someone forgot to change the picture.
Thanks for taking a look though!
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