Simplification of HSU New Era

[ThomasV]

New Lineup
VTF-3 HO....12" XBL2 driver...500w amp...dual 4" ports...21.5”x17”x25” HxWxD...9137.5 cu in....93lbs
VTF-3 Mk3...12" driver..........350w amp...dual 4" ports...21.5”x17”x25” HxWxD...9137.5 cu in....xxlbs)
VTF-2 Mk3...12" driver..........250w amp...dual 3" ports...22.0”x15”x23” HxWxD...7590 cu in.......*78lbs)
VTF-1.........10" driver..........200w amp...dual 3" ports...19.5”x14”x18” HxWxD...4914 cu in.......*44lbs)
MBM-12......12" light driver....350w amp...one 4" port.....19.0”x14”x18” HxWxD...4788 cu in.......xxlbs)

Old Lineup for comparison's sake:
VTF-3 Mk2...12" driver..........350w amp...dual 3" ports...22.0”x15”x23” HxWxD...7590 cu in.......80lbs)
STF-3.........12" driver..........300w amp...dual 3" ports...22.0”x15”x23” HxWxD...7590 cu in.......78lbs)
VTF-2 Mk2...10" driver..........250w amp...dual 3" ports...19.5”x14”x18” HxWxD...4914 cu in.......57lbs)
STF-2.........10" driver..........200w amp...one 3" port.....19.5”x14”x18” HxWxD...4914 cu in.......44lbs)
STF-1.........8" driver............150w amp...one 3" port.....19.0”x11”x16” HxWxD...3344 cu in.......35lbs)

*Estimate


-No more gold feet. Rubber feet are probably better choice all around instead of cheap plastic cones.
-The STF1 has been eliminated. No more 8".
-The VTF1 = STF2.
$379 intro vs. $320 closeout
-The VTF2MK3 = STF3 w/ lesser amp (50 watts.)
$469 intro vs. $480 closeout
-The HO is still the flagship and there is a new VTF3MK3 which is priced the ~same as the VTF3MK2, but offers more ouput, larger and is cheaper.

I don't believe the drivers have really been changed or upgraded. Anyone 100% on this?
Ports have been enlarged and potentially shaped better?

Price Comparison:

OLD MKII NEW MKIII
STF1 - 300
STF2 - 320 VTF1 - 380
STF3 - 480 VTF2 - 470
VTF2 - 500
VTF3 - 700 VTF3 - 650
VTF3HO - 900

Benefits of new era is expanded lineup, turbo upgrade for most everything, variable tuning all around, and "potentially" lower pricing depending on category.

Also, the MBM option to take care of midbass which seems to be rec'd on VTF3 and above. The MBM is still under review IMO ;).

HSU has also added to the VT12 speakers with their new HB speakers that were codeveloped with Accoustech.

What else could they add ;)?
-Auto Eq and maybe a sealed model.
-Many members seem to want HSU to pay their taxes on the subs and provide free shipping too :).
-Prettier HB speakers.
-Upgrade the VT12's.
-A super flagship unit in the $1500-2000.

This is my take on trying to simplify things.

[majorloser]

-A super flagship unit in the $1500-2000.

Man, would I love to see something with two 12" drivers or one 18" driver. Something equal to the output of two VTF-3HO w/turbos. A BEAST!!

[Ilkka]

Quote deleted...

Tom V has said that the new PB13-Ultra will offer close to double the clean output of the present PB12-Ultra. Since double means 6 dB, that would mean something in the range of 4-5 dB. Whether that means at some specific frequency or over the whole range is yet to be announced (and measured).

[lradden]

If you look at the post over on AVS it appears the VTF-3 MK3 out performs the Ultra and 4-5 dB would put the new PB-13 Ultra in MK3 territory not HO territory since the HO outperforms the MK3.
http://www.avsforum.com/avs-vb/showthread.php?p=9145558&&#post9145558

[ThomasV]

I wonder if Outlaw and Ascend will have new subwoofer announcements coming soon now?

[JonnyOzero3]

New Lineup
VTF-3 HO....12" XBL2 driver...500w amp...dual 4" ports...21.5”x17”x25” HxWxD...9137.5 cu in....93lbs
VTF-3 Mk3...12" driver..........350w amp...dual 4" ports...21.5”x17”x25” HxWxD...9137.5 cu in....xxlbs)
VTF-2 Mk3...12" driver..........250w amp...dual 3" ports...22.0”x15”x23” HxWxD...7590 cu in.......*78lbs)
VTF-1.........10" driver..........200w amp...dual 3" ports...19.5”x14”x18” HxWxD...4914 cu in.......*44lbs)
MBM-12......12" light driver....350w amp...one 4" port.....19.0”x14”x18” HxWxD...4788 cu in.......xxlbs)

Old Lineup for comparison's sake:
VTF-3 Mk2...12" driver..........350w amp...dual 3" ports...22.0”x15”x23” HxWxD...7590 cu in.......80lbs)
STF-3.........12" driver..........300w amp...dual 3" ports...22.0”x15”x23” HxWxD...7590 cu in.......78lbs)
VTF-2 Mk2...10" driver..........250w amp...dual 3" ports...19.5”x14”x18” HxWxD...4914 cu in.......57lbs)
STF-2.........10" driver..........200w amp...one 3" port.....19.5”x14”x18” HxWxD...4914 cu in.......44lbs)
STF-1.........8" driver............150w amp...one 3" port.....19.0”x11”x16” HxWxD...3344 cu in.......35lbs)

*Estimate

Hey nice chart! ;)

[Ilkka]

If you look at the post over on AVS it appears the VTF-3 MK3 out performs the Ultra and 4-5 dB would put the new PB-13 Ultra in MK3 territory not HO territory since the HO outperforms the MK3.
http://www.avsforum.com/avs-vb/showthread.php?p=9145558&&#post9145558
Remember that those measurements were taken in-room and only at 20 Hz. I would wait proper GP measurements until announcing "the winner".

[lradden]

Remember that those measurements were taken in-room and only at 20 Hz. I would wait proper GP measurements until announcing "the winner".

OK how about this. If you look at the post over on AVS it appears the VTF-3 MK3 out performs the Ultra "at 20Hz in room".

[dferrey]

Remember that those measurements were taken in-room and only at 20 Hz. I would wait proper GP measurements until announcing "the winner".Kinda like you ought to wait until SVS actually produces their new product before you start worrying about HSU responding ;)

[Pete_Hsu]

To put things into perspective, note that the VTF-3 Mk3 is selling for only $649 right now (+$100 for turbo). Quite impressive especially considering that fact!

Also note that as strong as the VTF-3 Mk3 is at 20Hz, it will naturally be even stronger above that frequency. Also, in-room frequency response should be quite flat down to about 15Hz.

[ThomasV]

Hey nice chart! ;)

Yeah, I stole it from some guy who stole it from some guy and by due process, I made it my own ;)

Let's not even get into subwoofer companies that do this.

Thanks, JonnyOzero3 (assuming you 1st put it together, but forgot to patent it.)

[lradden]

Remember that those measurements were taken in-room and only at 20 Hz. I would wait proper GP measurements until announcing "the winner".

Also an in room measurement is all I care about since I don't plan on running my subs outdoors. I'm more concerned with testing that's closer to where they will be used and I don't forsee myself using a sub outside. I should also mention that measurements are fun to look at but all that really matters to me is how a sub sounds.

[Ilkka]

OK how about this. If you look at the post over on AVS it appears the VTF-3 MK3 out performs the Ultra "at 20Hz in room".

Also an in room measurement is all I care about since I don't plan on running my subs outdoors. I'm more concerned with testing that's closer to where they will be used and I don't forsee myself using a sub outside. I should also mention that measurements are fun to look at but all that really matters to me is how a sub sounds.
I meant that the maximum output at 20 Hz isn't the most important thing. And please don't remind me of any SVS fanboys, since I haven't ever used that argument. It's very simple to use one number as a qualifier, but it doesn't tell much about subwoofer's performance. And I don't mean to favor any subwoofer, I would just wait more thorough measurements before claiming something is better/worse than the other etc.

And since those measurements were taken in-room, there is always some room for room/subwoofer interaction, meaning the other sub can have more room/boundary gain than the other. That's another reason why ground plane measurements are so much better. And that has nothing to do with the fact that all people listen to their subwoofers indoors. Absolute difference doesn't go anywhere when the subwoofers are being brought indoors.

I would alse like to add that based on the measurements I have taken for the VTF-3 MK2, I wouldn't be too surprised to see the new VTF-3 MK3 outgunning (max output) the SVS PB12-Ultra in deep bass range (15-25 Hz). It is pretty outstanding how well the MK2 performed with only its single 3" port open.

[lradden]

I meant that the maximum output at 20 Hz isn't the most important thing. And please don't remind me of any SVS fanboys, since I haven't ever used that argument. It's very simple to use one number as a qualifier, but it doesn't tell much about subwoofer's performance. And I don't mean to favor any subwoofer, I would just wait more thorough measurements before claiming something is better/worse than the other etc.

Wow!:eek: where did that come from, I never accused you of anything and least of all being a fan of any sub. You and I simply share a difference of opinion about subs and what matters in ther testing.

[Ilkka]

Wow!:eek: where did that come from, I never accused you of anything and least of all being a fan of any sub. You and I simply share a difference of opinion about subs and what matters in ther testing.
I was just being precautious, since we both know that the "max output at 20 Hz" has been the #1 argument of SVS fanboys for ages.

[Pete_Hsu]

The data point referenced above is about what I would have expected given the physical differences between the VTF-3 Mk3 and the others. Per my expectations, the data shows the VTF-3 Mk3/t to have exactly double (6db) the clean output at 20Hz vs the TN1220HO. In other words, it would take DUAL TN1220HO's to match the deep bass capability of a VTF-3 Mk3/t, which makes perfect sense. Even though the drivers and ports are firing in totally different directions for TN1220HO and VTF-3 Mk3, these expected differences still hold true.

The VTF-3 Mk2 has measured well both inside and outside. The VTF-3 Mk3 is a BIG step up in deep bass capability, with or without turbo, no doubt...even beyond DUAL VTF-3 Mk2!

[Ilkka]

Peter,

What is the tuning frequency for the VTF-3 MK3 with and without the turbo? How about if one port is plugged in each case?

[Pete_Hsu]

Same as the VTF-3 HO, just conservatively rated.

[Ilkka]

Same as the VTF-3 HO, just conservatively rated.
And those are? :)

[Pete_Hsu]

16/22Hz.

[lradden]

I was just being precautious, since we both know that the "max output at 20 Hz" has been the #1 argument of SVS fanboys for ages.

No problem, I wasn't aware of the "max output at 20 Hz" argument by SVS fans.

[Ilkka]

16/22Hz.
Ok, thank you.

[Pete_Hsu]

You're welcome!

[Ilkka]

No problem, I wasn't aware of the "max output at 20 Hz" argument by SVS fans.
Really? You probably haven't visited the other forums over the past years then. Well I'm sure many other members here know it. :)

[lradden]

I frequent AVS and many others for years now and have seen LOTS of sub arguments. Not sure how I missed the 20Hz thing though.

[JonnyOzero3]

Yeah, I stole it from some guy who stole it from some guy and by due process, I made it my own ;)

Let's not even get into subwoofer companies that do this.

Thanks, JonnyOzero3 (assuming you 1st put it together, but forgot to patent it.)

heheh, it's all good. You made it your own quite well - I like the asterik techni-dure. :D

[Ddavidson]

Oh hell let's all drag race. The one with the biggest spl number produced on a graph and posted on any A/V forum must be the best subwoofer available.

What a big load of BS.

Unless your just into having bragging rights (in either your posts or for you friends benefit), who in their right mind buys a subwoofer based on or just for its graph results?

I buy a subwoofer that simply sounds the best and doesn't get in the road of my balanced system. People who buy just based on specs are simply short changing themselves. Audio reproduction is all about listening ..... and IMO even that has proved to be very subjectively different for many people.

Graphs and spec sheets (on performance) should only ever be considered as a means of finding a complete list of suitable contenders for your hard earnt dollars. Then its down to the important stuff in audio reproduction .... and that is doing serious "listening comparisons".

All this mine is bigger than yours "so it must be better" is just what the marketing teams want you to fall for. Listening and comparing subs will tell you so much more than any graph or number produced on a spreadsheet.

Although many graphs and spec sheets look similar, it is "simply amazing" just how different (when listening) that two similar performing subwoofers actual can sound like.

That's where a very gifted designer like Dr Hsu makes all the difference in the world. He knows how all the components within his subwoofers work as a team which is why his designs produce a very neutral and balanced SQ. The side benefit is that because of this efficiency in his designs ........ they also produce some of the best (in their class) output levels.

Its clear that many other companies selling subwoofers have very limited design skill and some are are little more than marketing outlets appealing to people who are less experienced in what a good sounding subwoofer actually is. The key is in listening and directly comparing as that is what separates the real subwoofer designers from the subwoofer wannabes.

Ddavidson

[lradden]

Ddavidson, you can hang out at my house anytime. Well said, graphs are fun to look at but SQ means everything.

[Ddavidson]

Certainly they are handy for getting your contender list together, but certainly not for rushing out the door with your credit card.

Ddavidson

[JonnyOzero3]

Nice :)

[DrewB]

Tom V has said that the new PB13-Ultra will offer close to double the clean output of the present PB12-Ultra. Since double means 6 dB, that would mean something in the range of 4-5 dB.

May I ask how/where you got this info?

[Ilkka]

May I ask how/where you got this info?
http://www.avforums.com/forums/showthread.php?p=3416084#post3416084

[jmprader]

I'd like to see this stay on topic. Anyone interested in details/hyperbole about the other guys subs should check out the manufacturers website or the forums with threads about upcoming products. If someone wants to start a comparo about an existing competitive sub start a new thread. I'd like to hear more thoughts and questions about the new lineup.

Arrr!

[JonnyOzero3]

You know that Pirates are responsible for global warming right?

Oh wait you said on topic... :p

[JonnyOzero3]

Okay, here are the updates with the new prices and the weights from the product pages...

(add $100 to each for with turbo price)

New Lineup
VTF-3 HO....12" XBL2 driver...500w amp...dual 4" ports...21.5”x17”x25” HxWxD...9137.5 cu in....93lbs - $899
VTF-3 Mk3...12" driver..........350w amp...dual 4" ports...21.5”x17”x25” HxWxD...9137.5 cu in....90lbs) - $649 (intro) - Now $699
VTF-2 Mk3...12" driver..........250w amp...dual 3" ports...22.0”x15”x23” HxWxD...7590 cu in.......80lbs) - $469 (intro) - Now $499
VTF-1.........10" driver..........200w amp...dual 3" ports...19.5”x14”x18” HxWxD...4914 cu in.......56lbs) - $379 (intro) - Now $399
MBM-12......12" light driver....350w amp...one 4" port.....19.0”x14”x18” HxWxD...4788 cu in.......47lbs) - $399 (intro) - Now $499

Old Lineup for comparison's sake:
VTF-3 Mk2...12" driver..........350w amp...dual 3" ports...22.0”x15”x23” HxWxD...7590 cu in.......80lbs) - $699 - Now $559
STF-3.........12" driver..........300w amp...dual 3" ports...22.0”x15”x23” HxWxD...7590 cu in.......78lbs) - $599 - Now $479
VTF-2 Mk2...10" driver..........250w amp...dual 3" ports...19.5”x14”x18” HxWxD...4914 cu in.......57lbs) - $499 - Now $399
STF-2.........10" driver..........200w amp...one 3" port.....19.5”x14”x18” HxWxD...4914 cu in.......44lbs) - $399 - Now $319
STF-1.........8" driver............150w amp...one 3" port.....19.0”x11”x16” HxWxD...3344 cu in.......35lbs) - $299 - Now $249

[amdeutsch]

Tom V has said that the new PB13-Ultra will offer close to double the clean output of the present PB12-Ultra. Since double means 6 dB, that would mean something in the range of 4-5 dB. Whether that means at some specific frequency or over the whole range is yet to be announced (and measured).


Com'on now. 3 dB is double the power and 10 dB is double the loudness as perceived by the human ear. What is with that 4 - 5, 6 dB stuff?

[lradden]

I think Iikka figured since he's a SVS fan he'd use that "new" math that changes the old "it takes twice the power to gain 3 decibels". You know like when you have a 500w amp and you add another 500w amp you gain 3dB? Well he figured when it comes to SVS that equates to 6dB.

Talk about changing the laws of physics.

[xcjago]

Actually Ilkka is correct.

+3dB = double the power
+6db = double the spl (ie when you colocate two subwoofers)
+10db = double the perceived loudness

You guys need to do some research.

[amdeutsch]

The aforementioned upgrade by Ilkka deals with a single sub improvement. Therefore I think our math is correct. Please provide the research data regarding 6 dB that you found because AFAIK having 2 of the same only gives you increase of 3 dB: i.e for argument sake 1 sub = 90 dB/W/m; now you add a second one, same model, you have an increase of 3 dB for a total of 93 dB/W/m.
I also know that dB can be calculated 2 different ways, 10 log X or 20 log X, depending what variables you are comparing.

[lradden]

Yes double the SPL with two subs co-located, but since the new SVS is still a "single" sub the SPL would be 3dB with double the power. The way Ilkka worded things it was a 6dB increase for a single sub with double the power.

[Stan]

Don't forget that the "10 dBs to sound twice as loud" thing is for the midrange frequencies. It takes quite a bit less than that way down deep. Just take a look at some equal loudness curves. The curves may be say 10 dB apart in the mid frequencies but down low they converge.

Stan / sjmarcy

[Ilkka]

Oh dear, the old double issue again. :)

TV meant that the new Ultra would have almost the clean output of two older Ultra's. Since twice the radiating area and twice the amp power equals +6 dB at low frequencies (when co-located), 4-5 dB is IMO a pretty good estimate. Of course until someone measures it, it's just pure hype.

And what Stan said is absolutely true. 10 dB isn't true at low frequencies (~below 100 Hz). It's more like 4-6 dB.

And I'm as fan of HSU subs as I'm fan of SVS subs. Both make really good products.

[amdeutsch]

Oh dear, the old double issue again. :)

TV meant that the new Ultra would have almost the clean output of two older Ultra's. Since twice the radiating area and twice the amp power equals +6 dB at low frequencies (when co-located), 4-5 dB is IMO a pretty good estimate. Of course until someone measures it, it's just pure hype.

And what Stan said is absolutely true. 10 dB isn't true at low frequencies (~below 100 Hz). It's more like 4-6 dB.

And I'm as fan of HSU subs as I'm fan of SVS subs. Both make really good products.

Interestingly I only found post, #74 on this subject matter, to be from TV in your above linked thread. That would imply either
1) you have inside information almost 10 month after the fact of the posted/linked info OR
2) you are speculating and want it to be true.


And while looking at the loudness curves both Stan and you reference, http://http://hyperphysics.phy-astr.gsu.edu/hbase/sound/eqloud.html, it would appear that the 4 - 6 dB numbers are also to be taken with a grain of salt. Looking at them I would agree with that statement in the below 70 - 80 dB displayed curves; but higher than that and the differences increase. I think thats why loundness was incorporated into so many audio receivers to compensate for low volumes and start to disappear more and more at higher volumes.

:)

[xcjago]

The fact remains that two subwoofers placed in the same space will produce 6dB higher than one subwoofer. I know, I've tried it and measured it.

Also as far as the 10 log X and 20 log X. The correct formula for sound pressure level is 20 log X.

10 log X is for sound power level, which gives you the, "double the power = 3dB increase"

[amdeutsch]

I would assume that in your case both subs were powered by their own amp instead of sharing one amp. That would make a difference. But in this case the discussion brought forth, linked, by Ilkka was in regards to a newer designed sub replacing an existing sub.

[xcjago]

This is what Ilkka said:

"Tom V has said that the new PB13-Ultra will offer close to double the clean output of the present PB12-Ultra. Since double means 6 dB, that would mean something in the range of 4-5 dB."

Double the output, this means double the Sound Pressure Level, which means 6dB.

Double the output of the PB12-Ultra (Which has it's own amplfier btw) means that the PB-13 Ultra should have close to the output of two PB-12 Ultras, which both have their own amplifier or course.

Stop trying to twist the argument around just because you misunderstood it.

[amdeutsch]

This is what Ilkka said:

"Tom V has said that the new PB13-Ultra will offer close to double the clean output of the present PB12-Ultra. Since double means 6 dB, that would mean something in the range of 4-5 dB."

Double the output, this means double the Sound Pressure Level, which means 6dB.

Double the output of the PB12-Ultra (Which has it's own amplfier btw) means that the PB-13 Ultra should have close to the output of two PB-12 Ultras, which both have their own amplifier or course.

Stop trying to twist the argument around just because you misunderstood it.

Temper, temper.

I'm not twisting. I'm covering both sides unlike you who is looking at just one side.

As we both know TV did a marketing blurb. Now what really is meant by it only they know. Therefore just looking at it from one's own side, perspective, is being short sided.

[xcjago]

If you are unsure of what it means, you can check with TV himself. I'm sure he will confirm what I have said. When someone says double the output, it pretty much means equal to two of the same subwoofers.

[Stan]

Here are some common equal loudness curves, the one in the lower left seems to date to 2003. You can see that there is some variation down low. It might be hard to measure the loud, low notes in this case...since we feel as well as hear them. If these were all headphone tests only the hear part would be significant. Some of these tests date back to the 1930s. They might not have had an array of Hsu or other excellent subwoofers for their research efforts.

http://www.pbase.com/sjmarcy/image/75689761/original.jpg

[epitomeofawe]

MAF - not to be confused with WAF

[majorloser]

MAF - not to be confused with WAF

Also, not to be confused with WFC :p

(Does any of this have to do with the "brown note"?)

[lradden]

Oh dear, the old double issue again. :)

TV meant that the new Ultra would have almost the clean output of two older Ultra's. Since twice the radiating area and twice the amp power equals +6 dB at low frequencies (when co-located), 4-5 dB is IMO a pretty good estimate. Of course until someone measures it, it's just pure hype.

And what Stan said is absolutely true. 10 dB isn't true at low frequencies (~below 100 Hz). It's more like 4-6 dB.

And I'm as fan of HSU subs as I'm fan of SVS subs. Both make really good products.Ilkka, my comments about you being a SVS fan are based on the post I've read from you on various forums. It appears that the test you performed last summer showed the SVS subs to have poor frequency response, high group delay, and mid bass headroom that wasn't great. I would think that with the graphs you posted on the SVS subs you would feel that SVS subs aren't that good, but you seem to post in their favor. This is why I made my comment about you being an SVS fan.

[AdilM]

So if my sub outputs 100 db at 20 hz max output, I would think that double the output would be 200 db at 20 hz.
Even 1 db less than that would be a disappointment to me.

[Ilkka]

Ilkka, my comments about you being a SVS fan are based on the post I've read from you on various forums. It appears that the test you performed last summer showed the SVS subs to have poor frequency response, high group delay, and mid bass headroom that wasn't great. I would think that with the graphs you posted on the SVS subs you would feel that SVS subs aren't that good, but you seem to post in their favor. This is why I made my comment about you being an SVS fan.
Thanks for the explanation. Although it's not that simple. Though SVS subs have their weaknesses, they still compare very favorably to many subwoofers, even much higher priced. Since taking the last set of measurements, I have better acknowledged their weaknesses and tried to point out them when recommending their subwoofers to someone. I think you reading too much into some old posts I have made a long time ago.

[jmprader]

So if my sub outputs 100 db at 20 hz max output, I would think that double the output would be 200 db at 20 hz.
Even 1 db less than that would be a disappointment to me.

I think I get the humor, but this is going to create lots of confusion...not everyone looking for enlightenment here has even a layman's grip on the physics.

[Jerry]

Hopefully, someone can provide some info regarding a model-to-model comparison.

I just ordered a VTF-2-MK2 for $399. It is out of stock and apparantly will be discontinued soon. It should be available at the end of April. There will only be limited quantities so I'm not even sure if they will have one for me. After this lot, they are going bye-bye. The $100 discount grabbed my attention.

The VTF-1 is the same price. It is a 200W sub instead of 250W sub like the above unit. All other "specs at a glance" are the same. It is in stock so I could get it w/o waiting a month. My question is this... Does anyone know if there is any other difference than the extra 50W of the old VTF-2-MK2 unit? Does the new VTF-1 model have anything that makes it superior? As it is, if all other specs are the same, I'm not sure the extra 50W is worth a one month wait. If the VTF-1 has some type of hidden advantage that isn't obvious on their spec page or visa versa, it would help me make a decision. I basically went w/ the -2-MK2 because of the sale price being the same as the -1 but I didn't know at the time that the -2-MK2 was being discontined. Now I'm just confused.

Any help would be great.

Thanks

[lradden]

If you look at the numbers the only difference are the "Continuous Amp Power" and the "Outlet Power Requirement". Each sub uses the same woofer, cabinet and tuning etc... You'll only be giving up 50 watts.


VTF-2 MK2
Continuous Amp Power 250 Watts
Frequency Response (maxiumum extension mode) 25 Hz
Frequency Response (maxiumum output mode) 32 Hz
Woofer Size 10 Inches
Crossover Bypassable 24 dB/Oct, continuously variable 30 - 90 Hz low pass filter
Phase 0/180°
Dimensions 19.5"(height) x 14"(width) x 18"(depth)
Outlet Power Requirement 300 Watts,115V AC
Magnetically shielded Yes
Ship Weight 56 Lbs
Warranty 7 Years on the woofer, 2 years on electronics


VTF-1
Continuous Amp Power 200 Watts
Frequency Response (maxiumum extension mode) 25 Hz
Frequency Response (maxiumum output mode) 32 Hz
Woofer Size 10 Inches
Crossover Bypassable 24 dB/Oct, continuously variable 30 - 90 Hz low pass filter
Phase 0/180°
Dimensions 19.5"(h) x 14"(w) x 18"(d)
Outlet Power Requirement 250 W,120/240V AC
Magnetically shielded Yes
Ship Weight 56 Lbs
Warranty 7 Years on the woofer, 2 years on electronics