Velodyne DD-12, HSU VTF-3 HO, SVS PB13-Ultra, Def Tech Trinity

[avaserfi]

Thanks for the links! size isn't really a problem for me unless we start talking about something the size of a refrigerator so i'm enclined to go ported or with an active/passive design.

kits seem pretty easily done, and they're certainly economical. i also like the idea of fabricating the entire thing myself, the trick there being designing an enclosure that will let me maximize the capabilities of whichever driver i decide to go with. is there good software out there that will help you design an enclosure given the specs for a driver?

thanks again.

WinISD pro is a great program to model drivers in.

I would recommend looking into getting an Infinity Kappa VQ or Infinity Kappa Perfects as they are some great drivers and very capable of reaching mid-teens with extremely low distortion (inaudible) in the right cabinet. There is a reason I am using a pair of the 12" VQs in my current build . As far as amplification goes check out the Behringer EP2500 the thing is a monster especially for the price plus its ultra high quality.

If you have extra money to spend I would recommend getting a driver from the Audiopulse Revo line they are simply amazing, but pricey. Although, one of those mixed with a bridged EP2500 would be an absolute monster of a sub .

 

[Warpdrv]

WinISD pro is a great program to model drivers in.

If you have extra money to spend I would recommend getting a driver from the Audiopulse Revo line they are simply amazing, but pricey. Although, one of those mixed with a bridged EP2500 would be an absolute monster of a sub .

+1 on the AudioPulse... the drivers I am using is the 15" TC-Sounds TC-2000, before they changed their name to Audiopulse.. Which is now I believe the Revo. Here is a link to the same driver used in a sonotube.. http://www.hometheatershack.com/forums/subwoofer-tests/5758-diy-tc-sounds-tc-2000-15-ported-270l.html
Quite possibly some of the best drivers out there to buy period.. but pricey now..
Another Driver that is cheaper and models close to the same, would be the Creative Sounds SDX15 or Sound Splinter drivers.. http://www.soundsplinter.com/

 

[croseiv]

THe Epik Castle and Tower looks really good...hmmm maybe one of those over an Ultra. Decisions, decisions, decisions...

 

[croseiv]

So would you still consider the Epik Conquest a girly sub?

No...that's one BEAST of a sub. Down right scary bass output.

 

[ringbearer3791]

winISB pro

Great suggestion about the software for modeling enclosures and drivers. I have a quick question. Does anyone out there have the relevant specs for the Audiopulse Revo line 15" driver? I've tried inputting with the infor available from the website, but winISB tells me there's a conflict with some of the numbers.

Thanks, this is definitely going to be a fun project.

While we're at it. Does anyone have an alternative suggestion for a driver than the 15" Audiopulse Revo within the same price range? I'm looking for low, linear, accurate bass.

Thanks again.

 

[avaserfi]

Great suggestion about the software for modeling enclosures and drivers. I have a quick question. Does anyone out there have the relevant specs for the Audiopulse Revo line 15" driver? I've tried inputting with the infor available from the website, but winISB tells me there's a conflict with some of the numbers.

Thanks, this is definitely going to be a fun project.

While we're at it. Does anyone have an alternative suggestion for a driver than the 15" Audiopulse Revo within the same price range? I'm looking for low, linear, accurate bass.

Thanks again.

WinISD is very picky about driver data and likes to calculate some of them - there is a check box labeled calculate at the bottom of the driver data make sure it is checked. The numbers will be slightly different from the Audiopulse website's, but don't worry they will be close enough. If you look at the help file of WinISD is will tell you which specs it recommends you enter and which it recommends you let it calculate.

As far as drivers go the only other possible option would be the JL W7 driver, but I don't know which would be the better option. In all honesty I have only seen one driver measure better than the Revo and that is Audiopulse's LMS-Ultra (retail $2,000), but I haven't seen data on the W7 just heard great things about its measurement. Basically, what I am saying is the Revo and a quality amp like the Behringer EP2500 you will have a sub that easily beats any commercial sub (assuming properly built and designed).

 

[Warpdrv]

Make sure you read the help file on how to input the data...

You will find that you don't necessarily need to input all the data, as WinISD will compute it for you...

I at first found this program hard to figure out, but after fiddling with it, it will work out... Once you save a driver, you never have to use that again, mainly for when you figured out the driver your going to go with. Then you just save a box design and tweak it to you liking...

 

[AcuDefTechGuy]

No...that's one BEAST of a sub. Down right scary bass output.

If I were NOT so obsessive-compulsive about MATCHING brands, I would have gotten that Epik Conquest! I just know that this $1,700 Conquest probably outperforms the $15,000 Velodyne DD 1812, $8,000 Genelec Sub, $1,500 SVS-Ultra, and $3,000 DefTech Trinity.

Has Tom Nousaine tested the DefTech Trinity?
And the DefTech BP7000SC?

I wonder what the New York Trinity Church would sound like with 6 of the Epik Conquests, intead of the DefTech Trinitys?

 

[jinjuku]

If I were NOT so obsessive-compulsive about MATCHING brands, I would have gotten that Epik Conquest! I just know that this $1,700 Conquest probably outperforms the $15,000 Velodyne DD 1812, $8,000 Genelec Sub, $1,500 SVS-Ultra, and $3,000 DefTech Trinity.

Has Tom Nousaine tested the DefTech Trinity?
And the DefTech BP7000SC?

I wonder what the New York Trinity Church would sound like with 6 of the Epik Conquests, intead of the DefTech Trinitys?

You should check out the Elemental Designs A7-700 and A7-900

 

[AcuDefTechGuy]

You should check out the Elemental Designs A7-700 and A7-900

Yeah, I also looked at the Elemental Designs, which I'm sure is absolutely wonderful, but they just don't look as good aesthetically to me.

 

[annunaki]

I agree with AcuDefTechGuy. The ED leaves much to be desired in the looks department.

 

[jinjuku]

I agree with AcuDefTechGuy. The ED leaves much to be desired in the looks department.

I don't know about you, but I watch movies with the lights out. To each their own.

 

[annunaki]

So do I but I, but I would not want something that gaudy in my living room. I know my wife wouldn't either. In a theater room perhaps, but even then I would want it to look nice.

 

[E-A-G-L-E-S]

JMO, but I think it would look good in an enviroment with a modern look. Blacks and whites.
The bang for buck is unmatched though.

 

[AdrianMills]

Read this..
http://forums.audioholics.com/forums/showthread.php?t=20925

Some was edited out and put into another thread, here.
http://forums.audioholics.com/forums/showthread.php?t=21176

This is why Craigsub is a liar.

SheepStar

Holy cow. I missed those threads the first time around but what happened is certainly not very surprising as far as I'm concerned; CraigSub has always struck me as a bit of a diva and nowhere near as technically competent as the likes of Ilkka. The fact that a bunch fanboy sheeple just started throwing insults because Ilkka stated some basic facts and raised some concerns was just par for the course really.

But for future reference, for those that do not know, cultural and language differences can influence people's modes of expression enormously and everyone should take that into account when communicating on this world wide web of ours.

 

[furrycute]

Right on the money!

Holy cow. I missed those threads the first time around but what happened is certainly not very surprising as far as I'm concerned; CraigSub has always struck me as a bit of a diva and nowhere near as technically competent as the likes of Ilkka. The fact that a bunch fanboy sheeple just started throwing insults because Ilkka stated some basic facts and raised some concerns was just par for the course really.

 

[ringbearer3791]

low pass filter

Thanks to Ava and Serf!

i've been having lots of fun with winISD and designing a new sub. I have a question at this point though. I'm modeling the audiopulse revo 15" in a vented box tuned to 16 Hz with an enclosure of about 8.8 cu ft. The 3 dB point is right about 15 Hz and i'm wondering if i need to put a low pass filter into the sub to prevent over-excursion of the driver at very low frequencies as the model suggests that the driver will exceed max excusion around 13-14 Hz. Will the power rolloff counteract the tendency towards over driving or do i need a filter, and if so could you recommend one? thanks.

Josh

 

[jinjuku]

The real question is: How much material actually goes that low? I built a dual 12" sub with a 500watt amp. Box is tuned to 18hz. I didn't bother with a low pass filter. It has done fine.

 

[ringbearer3791]

tc sounds lms 4000

I've just noticed that there are several tc sounds lms 4000 12" drivers on ebay brand new right now. i was thinking about the audiopulse revo 15 but doing some modeling with the lms 12" and looks great in a 6 cu ft box. does anyone here have any experience with this driver. i've read a couple of forums on other sites that have commented on a lack of sensitivity but thought i'd pose the question to the gang here.

thanks.

Josh

 

[Warpdrv]

ringbearer, I see now that they posted the specs for those drivers

I'll bet those 12" drivers would be awesome...

as would the Revo...

The LMS drivers really prefer a sealed alignment... they just model out better that way... there are tons of threads about this on the DIY over at AVSforum...

If I were you, I would go for the ported box with the 15" - 320L (11.3cuft) ported to 14.5hz if you have the room... If not, then you are on the right path tuning a touch higher...

BTW, to kill the excursion down low, with the increasing amounts of material below your tuning point, your looking for a HighPass filter... Low pass is for the 80hz range. I would definately be looking to add that into your design. You don't want to over excursion your driver.
You can plug into winISD the add in filters such as amp power and high/low pass filters to achieve a final result with how much power you are going to use.. that is important...

Good luck