Decware DNA Horn - Page 18 - diyAudio
Go Back   Home > Forums > Loudspeakers > Full Range

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 23rd May 2013, 12:35 AM   #171
bcmbob is offline bcmbob  United States
diyAudio Member
 
Join Date: Dec 2009
Location: Bay City, Michigan
Thanks for the offer, I'll get the data together and send it to you. In the picture the JC-2 Pre is pushing the ACAs. It sounds good at rather high volume and using a pre may influence what you select as a driver. Just a thought.
__________________
Bob M.
"Arrange Whatever Pieces Come Your Way."
  Reply With Quote
Old 23rd May 2013, 12:43 AM   #172
diyAudio Member
 
BP1Fanatic's Avatar
 
Join Date: Jan 2009
Location: Columbus, Ohio
Your setup is awesome! I really like how you built the amps to power the speaker too. I guess video is next???
  Reply With Quote
Old 23rd May 2013, 12:44 AM   #173
xrk971 is offline xrk971  United States
diyAudio Member
 
xrk971's Avatar
 
Join Date: Oct 2012
Location: Virginia
Bob,
Do you have photos of your ACA build posted somewhere? Your heatsinks appear to be dc to dc converter half bricks which I considered using because they are inexpensive but folks on the ACA thread said they would get too hot. I think they should dissipate 10 watts ea no problem.
  Reply With Quote
Old 23rd May 2013, 12:58 AM   #174
xrk971 is offline xrk971  United States
diyAudio Member
 
xrk971's Avatar
 
Join Date: Oct 2012
Location: Virginia
Bob,
I was thinking how you say this sounds pretty good for the price. It's rare to have a true HiFi setup with a Steve Deckert BLH speaker powered by a Nelson Pass single ended class A amp for under $100! I bet it sounds better than many $700 stereos out there. Nice job.
  Reply With Quote
Old 23rd May 2013, 12:59 AM   #175
bcmbob is offline bcmbob  United States
diyAudio Member
 
Join Date: Dec 2009
Location: Bay City, Michigan
I posted somewhere but don't have the link handy. I'll take the risk of hijacking the thread and repost till I find it. There was some text but here are the pics. Two xeon heatsinks per amp.
Attached Images
File Type: jpg DSC00852.JPG (134.4 KB, 287 views)
File Type: jpg DSC00853.JPG (130.0 KB, 272 views)
File Type: jpg DSC00854.JPG (118.3 KB, 259 views)
File Type: jpg DSC00855.JPG (114.1 KB, 248 views)
File Type: jpg DSC00856.JPG (238.7 KB, 245 views)
File Type: jpg DSC00857.JPG (122.0 KB, 108 views)
__________________
Bob M.
"Arrange Whatever Pieces Come Your Way."

Last edited by bcmbob; 23rd May 2013 at 01:02 AM.
  Reply With Quote
Old 23rd May 2013, 01:03 AM   #176
xrk971 is offline xrk971  United States
diyAudio Member
 
xrk971's Avatar
 
Join Date: Oct 2012
Location: Virginia
Hijack away! Are those surplus pc cpu heatsinks? I like the angle bracket as main structure and heatsink base. I am thinking of using a Pentium 2.4 GHz cooler fin.
  Reply With Quote
Old 23rd May 2013, 01:09 AM   #177
bcmbob is offline bcmbob  United States
diyAudio Member
 
Join Date: Dec 2009
Location: Bay City, Michigan
Thanks all for the complements. Yes, PC stuff - I got bunches of them while building a render farm with a some dual processor surplus motherboards.. They came from eBay about four years ago. There are still some good units there at a bargain.

I salvaged four 8' links of 3" X 3" X 1/4 structural aluminum from my former employer. I'm gonna be lost when I run out. !!!
__________________
Bob M.
"Arrange Whatever Pieces Come Your Way."

Last edited by bcmbob; 23rd May 2013 at 01:12 AM.
  Reply With Quote
Old 23rd May 2013, 02:19 PM   #178
xrk971 is offline xrk971  United States
diyAudio Member
 
xrk971's Avatar
 
Join Date: Oct 2012
Location: Virginia
That's a nice score of aluminum angle stock. Metalsdepot.com sells 8 ft of 3x3x0.25 angles for $91 ea. Another option for amp structures with lots of surface area for heat transfer are Bosch rails.
Aluminum Structural Framing - Aluminum Structural Framing - aluminum, custom worktable, ergonomic workstation, extrusion, framing, framing components, industrial framing, lean manufacturing, modular construction, profiles, structural framing, t-slot

They build clean room workstations and Porsche assembly lines with this stuff.

They actually are not that expensive compared to plain channels and let you connect things with T-slots. They come in many profiles. http://www13.boschrexroth-us.com/cat...s/section2.pdf

Maybe a 4 in long free eval-sample will be a great heat sink?

OK, we will get back to our regular programming now of the DNA horn. Actually the angles can make good out rigger legs... so it is related

Last edited by xrk971; 23rd May 2013 at 02:43 PM.
  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
Decware Corner Horn plans for Fostex FE167e vaughn Swap Meet 2 17th April 2012 11:39 PM
FS: Fostex FE206E (Decware modified) backloaded horn with Karlson Slot $299 bbaker6212 Swap Meet 4 24th September 2007 04:34 PM
McCormack DNA-500 one channel out kaboom Solid State 12 20th June 2006 01:41 PM
FS: Wicked One bass horn (decware design) cm961 Swap Meet 0 11th August 2003 03:17 PM
Decware DIY Bandpass Horn subs Will Subwoofers 2 15th October 2001 10:14 AM


New To Site? Need Help?

All times are GMT. The time now is 03:48 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