Build your own 2x12" TH (The Kraken 212 TH) - Page 12 - diyAudio
Go Back   Home > Forums > Loudspeakers > Subwoofers

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 7th November 2011, 11:05 PM   #111
diyAudio Member
 
Join Date: Jan 2011
Some pretty powerful amps can be had for cheap from Craigslist. I got an xti 2000 for $350 (has all the DSP you need) and a qsc rmx 1450 for 150 (no DSP but selectable high pass filtering)
You may want something like that to drive your Kraken to its full potential
  Reply With Quote
Old 8th November 2011, 01:02 AM   #112
18Hurts is offline 18Hurts  United States
diyAudio Member
 
Join Date: Nov 2010
I think the term for this is "mission creep"

Needed some tunes in the garage, had some old electronics around--time passes on the DIY forums and a pair of line arrays show up. Works well in the acoustic mess of a garage and I do have this old sub laying around...throw that in the mix and and sounds better.

But I want more! Thanks to Petter and the Kraken, a single 12" woofer, two sheets of wood and some effort and that is taken care of. It would make sense to build a second one for cookouts so add another one--have to have a "real" amp so...

Luckily it is now the winter season so the TH education can continue and I'll have the first one built before the snow melts. As the spring warms a second Kraken will show up for summer BBQs... The Xti and XLS series look to be the perfect solution and...

My wife hates DIY Audio...
  Reply With Quote
Old 8th November 2011, 08:30 PM   #113
diyAudio Member
 
Join Date: Sep 2007
Quote:
Originally Posted by m R g S r View Post
Personally I don't think this sub would suit music playback very well.
Look how things get above 70hz or so in the sim. You're not really getting a clean flat 2 octaves out of this horn...And unless you have some large mains, the subwoofer will be trying to play higher than that 70hz...
I know you said you wanted it for pipe organ playback, but that's probably one of the few types of music which has content under 30hz...
Also with a horn of this size (path length) you need a good deal of delay set up via DSP for your mAins to keep things from sounding muddy

Well...it all has to do with preferences and compromises as you know. First
of all, the horn is not built yet, so I don't think we should speculate about
the high freq. response without hard facts.

2 octaves is no problem to get. The trade of is size, sensitivity and dynamics.
The different TH I have built so far have sounded more dynamic and music
frendly the higher throat to mouth ratio there were. Also, to get decent
sensitivity, I had to sacrifice some band width. The Kraken series has been
optimized according to my personal preferences based on several builds for
example 6.5", 12", 15" and finally 18", the 18 Sound 18NLW9600.

I usually recomend to use a delay on the mains if the horn length exceeds 3
meters. Otherwise the bass tones will arrive to late with a .
  Reply With Quote
Old 8th November 2011, 08:31 PM   #114
diyAudio Member
 
Join Date: Sep 2007
18 Hurts, really looking forward to your build
  Reply With Quote
Old 8th November 2011, 10:19 PM   #115
18Hurts is offline 18Hurts  United States
diyAudio Member
 
Join Date: Nov 2010
Quote:
Originally Posted by Petter Persson View Post
18 Hurts, really looking forward to your build
The project got green lighted by the boss (my wife) with stipulations--it will start after Christmas since real world projects are sucking up the time. I think my Christmas present will weigh around 7.75 KG in a box about a certain size.

I was pondering the delay and due to having to back up about 4 meters from the line arrays, should I move the Kraken along the side wall forward? The optimal listening position in the garage has a couch located in the spot so I'm thinking if the Kraken sits next to the couch that would increase the perceived output and help with the delay of the horn path?

Don't think there will be any complaints about bass capability when a tapped horn is about 30cm away from the couch you're sitting on.
  Reply With Quote
Old 9th November 2011, 02:33 AM   #116
diyAudio Member
 
speakrsrfun's Avatar
 
Join Date: May 2005
Location: Toronto
Can the mouth of the Kraken X1 be moved to the thinner profile of the front? Placement may be easier when layed down or when boundry loaded. Any input?
__________________
What was that?... I can't hear you I have a line array filling my ears.
  Reply With Quote
Old 10th November 2011, 02:30 AM   #117
18Hurts is offline 18Hurts  United States
diyAudio Member
 
Join Date: Nov 2010
Quote:
Originally Posted by speakrsrfun View Post
Can the mouth of the Kraken X1 be moved to the thinner profile of the front? Placement may be easier when layed down or when boundry loaded. Any input?
From my understanding (those that are skilled with this PLEASE inform us less knowledgeable) the horn opening location is not very critical--but it's dimensions are.

Danley Sound Labs has tapped horns that have switchable output mouths--you can change the mouth to different positions. I assume this is not a critical thing so you can put the "mouth" on the front but it will change things considering horn path length. The mouth must be the same area as the side mouth so considering the front panel is not as wide--you have to go up to get the same area. This will change the horn path length which will change the tuning. Will it matter? I'm not that far with Horn Response and full understanding of horns but it might not matter in reality.

Can you make the "mouth" the same dimensions but wrap it around the front? Makes sense that it would not matter but I'm assuming you want the mouth only on the front side--you'll have to increase the height to get the same area which will change the horn path length and tuning slightly.

I'm progressing with the Kraken 1x12 and doing my research before I start cutting wood--wish I could be more informative but I'm at that critical area known as the "grey zone" smart enough to mostly understand but too ignorant to get every last specification clear. As far as I understand, the mouth should be fine with a front location as long as the area is the same as the side vent and you don't shorten the horn path length too much.

If I every write cryptic code... DIY will equal OCD.
  Reply With Quote
Old 10th November 2011, 02:25 PM   #118
tb46 is offline tb46  United States
diyAudio Member
 
Join Date: Jan 2006
Location: Texas
Hi speakrsrfun,

The side mouth would be 24.3" high, the path to the center of the mouth would be 3"shorter and the simulation hardly changes.

Regards,
__________________
Oliver
  Reply With Quote
Old 10th November 2011, 05:02 PM   #119
diyAudio Member
 
Join Date: Sep 2007
Quote:
Originally Posted by speakrsrfun View Post
Can the mouth of the Kraken X1 be moved to the thinner profile of the front? Placement may be easier when layed down or when boundry loaded. Any input?
Since the depth of the speaker is greater than the width of the opening it is
okey to make a side opening. Just make it the same height, 320 mm.
  Reply With Quote
Old 10th November 2011, 05:06 PM   #120
diyAudio Member
 
Join Date: Sep 2007
Here is the 19mm = 3/4" Kraken 112. Use the same bracing as in the 22mm version.

Click the image to open in full size.

Quote:
should I move the Kraken along the side wall forward?

The optimal listening position in the garage has a couch located in the spot so I'm thinking if the Kraken sits next to the couch that would increase the perceived output and help with the delay of the horn path?
Yes.

Yes
  Reply With Quote

Reply


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Building Some 2x12 Cabs... SnoopKatt Multi-Way 16 8th December 2010 03:15 PM
212 guitar closed back cab build Yanoplathizo Multi-Way 2 21st December 2009 11:56 PM
2x12 wiring help dclancy Instruments and Amps 2 7th October 2007 10:41 PM
Alchemist Kraken Apd6a Mkii santosa Solid State 0 20th August 2005 10:37 AM
1kW 2x12 rossco Multi-Way 4 15th March 2004 09:54 AM


New To Site? Need Help?

All times are GMT. The time now is 12:29 PM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2