50% off to take Betsy where she's never been! - Page 6 - diyAudio
Go Back   Home > Forums > Commercial Sector > Manufacturers > Wild Burro Audio

Wild Burro Audio DIY full range speakers from Wild Burro Audio Labs

Reply
 
Thread Tools Search this Thread
Old 5th March 2010, 02:28 AM   #51
pjanda1 is offline pjanda1  United States
diyAudio Member
 
pjanda1's Avatar
 
Join Date: Jan 2005
Location: Boulder, CO
Pete,

Here's the deal. I think I'm out of BetsyK's in this batch (I hear a check is in the mail, so I'm not exactly sure). If you are willing to document the project somewhere new and visible, I'd be happy to let you in on the sale. But, I'd ship you a pair of drivers that have been lightly demo'd. They are essentially perfect (one has a little bugger around a mounting screw), but I figured I'd mention it in the full spirit of disclosure.

You can never start too many projects! Screwing speakers into those JE Labs baffles would be pretty easy, and it doesn't cost much more to ship four speakers than it does two. FWIW, long down my list of projects is to use the miniDSP parametric EQ function to experiment with notch filters. I'd then build an equivalent circuit with passive components, but it would sure be easier to not buy a big pile of parts.

Send me an email either way,

Paul
Wild Burro Audio Labs - DIY Full Range Speakers
  Reply With Quote
Old 25th April 2010, 06:49 AM   #52
diyAudio Member
 
keantoken's Avatar
 
Join Date: Aug 2006
Location: Texas
Blog Entries: 2
Hi. I sent an Email to Pjanda but it got rejected, presumably because the images were too large. I decided to post here instead.

Here are the pics of my current progress. The finished thing will be about 6 feet long, 3.5 feet high.

Click the image to open in full size.

Click the image to open in full size.

Click the image to open in full size.

It's been great fun so far. Many trips have been made to town, after discovering a new tool was needed. I discovered how to make straight cuts with a table saw.

- keantoken
  Reply With Quote
Old 30th April 2010, 03:27 AM   #53
freddi is offline freddi  United States
diyAudio Member
 
freddi's Avatar
 
Join Date: Aug 2005
are those boards for an open baffle? BetsyK has a great cone
  Reply With Quote
Old 30th April 2010, 03:37 AM   #54
diyAudio Member
 
keantoken's Avatar
 
Join Date: Aug 2006
Location: Texas
Blog Entries: 2
Yes.

It turns out I can't get the nasty stain out of the middle board, but I'm more interested in functionality at this point.

My idea is to pack cloth behind it so it's a damped open baffle. Not sure what it'll do, but I had the idea and I'm gonna test it out.

- keantoken
  Reply With Quote
Old 28th May 2010, 11:33 PM   #55
diyAudio Member
 
keantoken's Avatar
 
Join Date: Aug 2006
Location: Texas
Blog Entries: 2
My Betsy's arrived today!!!

I've got one sitting upside down on top of a thin wood box stuffed with a towel... Rather inferiors enclosure, I know.

As expected, it sounds better than any speaker I've heard before. When I turn up the volume, it sounds the same as before - Just louder! Oh, the humanity! It's a nice change from the crappy, $2 speakers (okay, more like $80...) speakers I usually listen to.

Just amazing... I don't think I'll get tired of these anytime soon...

- keantoken
  Reply With Quote
Old 29th May 2010, 06:42 PM   #56
adason is offline adason  United States
diyAudio Member
 
adason's Avatar
 
Join Date: Nov 2004
Location: Maryland
I received my Betsy-WOW today.
Nice looking speakers. I could not resist and slapped it on the temporary ob. I measured fr response of fresh driver, just out of curiosity, with Holm Impulse.
On my baffle it starts at precisely 50Hz flat to about 700 Hz. There is weird looking dip between 700-800 Hz, (might have something to do with the width of the baffle?). Between 50 Hz and 700 Hz its exceptionally flat. Things are not that flat above the 1kHz, but the breakups are not that bad and it actually only goes +/-5dB. Upper end falls of like a rock at 8kHz. Than it lingers to about 16kHz, but at the level lower at least 20 dB. No nasty breakup modes, nice.
I am little worried about that weird dip at 700-800 Hz, even distortion rises at this point.
Now this is fresh driver out of the box, I will measure again after few weeks.
Otherwise it will be a great midrange, once paired with high quality tweeter. (I have something in mind, I have some linaeum tweeters left, they measure and sound beautifully.)

Thanks Paul.
Ed
  Reply With Quote
Old 30th May 2010, 05:45 AM   #57
diyAudio Member
 
keantoken's Avatar
 
Join Date: Aug 2006
Location: Texas
Blog Entries: 2
I've FINALLY got my OB to the point where it's functional. The top shelf hasn't been constructed yet.

I added 4 ohm series resistors, and this really improves the sound. Not only on the Betsy's, but on all the speakers I've tested it with. So maybe it's something with the amp? Anyways, a series resistor in my setup gives the highs less bite, and does a great help for the bass on my OB. Sounds more balanced now, and I can play it loudly without ear fatigue (I suspect the amp, it's only a cheapo Sony XPLOD thingy, but it's the best I have).

As you can see, my room doesn't quite compare to the gargantuan listening rooms everyone else seems to have. But it sounds good enough!!!

- keantoken
Attached Images
File Type: jpg DCP00678.JPG (307.0 KB, 196 views)
File Type: jpg DCP00679.JPG (302.0 KB, 191 views)

Last edited by keantoken; 30th May 2010 at 05:48 AM.
  Reply With Quote
Old 30th May 2010, 06:03 AM   #58
diyAudio Member
 
Join Date: Nov 2007
Location: Dallas
If thats BetsyK, Qts might be a little low for OB. Small series resistance could raise to taste.

Last edited by kenpeter; 30th May 2010 at 06:08 AM.
  Reply With Quote
Old 30th May 2010, 02:19 PM   #59
pjanda1 is offline pjanda1  United States
diyAudio Member
 
pjanda1's Avatar
 
Join Date: Jan 2005
Location: Boulder, CO
Yup Ken, thats the BetsyK Keantoken is using. I suggested it because he is interested making boxes in the long term, while using OBs right now. I suggested that a series resistor should be get the BetsyK's effective Qts up to OB (Betsy) levels for the time being. I think 4 ohms might be a little high, but use whatever sounds best!

Paul
Wild Burro Audio Labs - DIY Full Range Speakers
  Reply With Quote
Old 30th May 2010, 06:31 PM   #60
diyAudio Member
 
keantoken's Avatar
 
Join Date: Aug 2006
Location: Texas
Blog Entries: 2
Actually, I think both of you suggested I do that... I must be a slow learner.

I originally thought a series resistor would be an ultra-non-hifi solution, presumably because of all the folks talking about dampening and frequency response... I was surprised when Ken suggested such a thing, but I figured he had probably tried it himself without ill effects. Then I found the current drive thread and realized it may be interesting to try. All is not what it seems in this world, and the rest is history.

Even though the bass is stronger, there is a small peak around 50-60Hz just as predicted by the impedance plots. I wouldn't know just from listening, and I consider this drawback to be fairly benign compared to the alternative.

- keantoken
  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
OB: Dark Star Shootout - Betsy vs. B200 rjbond3rd Full Range 46 16th November 2012 12:47 PM
Betsy/Boomer OB speaker kit Godzilla Wild Burro Audio 9 27th January 2011 03:51 AM
Betsy-K Impedence Karl71 Wild Burro Audio 1 7th December 2009 12:09 AM
Betsy/Boomer OB Speaker Godzilla Full Range 7 19th November 2009 02:42 AM


New To Site? Need Help?

All times are GMT. The time now is 10:04 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