Showing posts with label bass horn. Show all posts
Showing posts with label bass horn. Show all posts

Wednesday, November 29, 2017

New Three Way Horn System In The Works

I've been collecting parts for this for many years. This may be the slowest project I've ever done. My friend JC designed the basshorn, provided the math for the builder of the tractrix mid and tweeter. I need to build top hats for these and my least favorite part the passive crossover. Fortunately my friend Chris is helping me with this or I'd have to go active. 

Here we have the bass horn. It is large and can accomodate 12" 15" or 18" drivers. For this application we are using 12" drivers. These will play up to around 350hz.
I am a toddler when it comes to putting systems together but the main point in DIY is to learn so if it doesn't work try and try again.
I need more stuffing. 

 Fortunately these drivers can pick up around 350hz. These are JB 2482 drivers and are so very heavy.
 They will be mounted to these pure tractrix horns. They do look better in person not sure what the flash did here.

 Most of these horns are on loan to me but will be fun to try out for a while. Round tractrix with B&C DE250. They start breaking up past where I can hear lol....
This will be going together soon and then tweaked until it sounds right. That will likely take a while. This will be my second system on the other end of the house lol. Now to find technology to stream audio in sync to both systems... Anyone have any suggestions?

Check out the DIY tractrix horns at Fastlane Audio.
http://www.fastlaneaudio.com/

Monday, September 21, 2015

Another Horn Roadtrip To Georgia

A couple of months ago I get this email about thinning out some speaker projects from my friend JC in Georgia. He built my Jubilee bass horn clones and SnailTrac bass horns. In the list were his Tractrix horns I've been drooling over for years. This will be the basis for my first 4 way system. He also let me take home some good sized mf tractrix horns. Sunday Stacey and I loaded up and headed for Georgia a 7 1/2 hour turn around road trip so 15 hours on the road but totally worth it.
This is becoming a familiar site as the sun comes up on the way to Memphis. I've been through Memphis more recently than I have in  years.
In Mississippi there was a cotton field right behind the gas station. Ledbelly was immediately going through my head. 
JC is removing the drivers for the trip home. This speakers are so black they are hard to take pictures of and they just soak in the light. 

 I had to totally wash out the pic just so you could see the curves of these massive horns. 70hz to 600hz. They use two  12" Eminence drivers which are about 99db each not sure what they are horn loaded. I guess I'll find out.
Light suckers!
Timothy Leary in the background thinks it is funny. Hmm I wonder what that large sheet he is printed on????? 
For a sense of scale the fc of the horns on top are 233hz. The drivers below are 12" cast frames. 
 Thanks JC for all the horns.... AGAIN... And Stacey for making the Ga trip with me in one day.






Tuesday, July 16, 2013

The Snail Horns

 A start and last post on these for a while.
 
or 

or
 Does anyone have a preference for mounting either vertical or horizontal? An advantage for either?
I like them horizontally as it is as close as I'll ever be to a WE snail horn.

This is the last post on these for a while until I start working on the MF and HF.

Monday, July 15, 2013

Bass Horn Road Trip To Georgia

I was given an opportunity to pick up some one of a kind bass horns recently so I jumped at them and went to pick them up this weekend. This would be a trek across Arkansas, Tennessee, Mississippi, Alabama and Georgia.

The view leaving Arkansas.
  
The next day we made it to Georgia at my friend and horn builder JC's house. We were relieved to get one of them loaded but we were still unsure if we could get both of them into my Yukon.
 The back door just barely fit with both of these horns in the Yukon. We had to reposition and nudge them into place before the back door would shut. Then we had to ride home without as much room in the front seats.. Wow that was a long drive.
Horn Loaded Yukon. Yes I actually buy vehicles based on cargo capacity. I suppose I should have gone with the longer Suburban or better fuel economy Penzgaur.
 
 Oh man blurry pics make me look much better. 
HOLY CRAP THESE ARE BIG 8-)
 Driving all weekend and moving the horns into the house myself did make me this tired... It was definitely worth it.
Of course I picked up a few more goodies. A pair of 12 inch drivers for each horn. According to JC the horns can utilize dual 18, 15, or 12 inch drivers.  I also picked up an Ashly crossover I wasn't expecting but am very happy to have it.
 So I'm close to finishing up my Jubilee 2 way horn system when this falls into my lap. BTW JC also built my Jubilee's. The bass horns should make it to just about 400hz so maybe aim for 350hz. So what to do for 350hz-20khz? Three way with a tractrix mf and hf horns with who knows what drivers? Or a big tractrix or le cleach round horn with an eight inch Lowther or Tang Band to cover from 350hz  to 20khz? I'd like to try the later as I've never lived with Lowthers but I have heard them. Any suggestions welcome.


Thanks again JC!




Thursday, May 31, 2012

Vintage 10ft Straight Bass Horn

I really dig these large straight horns. I really want to renovate my attic so I can have some real big horns.

Thursday, March 11, 2010

Horn Type Speaker Systems By George L Augspurger

These are two great articles from Audio High Fidelity. They talk about some of the most important speakers in audio history.

Part I Fundamentals of horn speakers; the folded horn; introduction to the corner horn.
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Part II Variations in the Klipsch design; the exponential labrinth; the radial horn.




Sunday, May 24, 2009

AH! Horns by Bill Woods

I ran into Bill Woods horns on the net for the first time last year. One of his horns seemed a good match for my Jubilee bass horns. This horn was the AH! 500. The worlds first conical radial horn. This horn was built for use in Chinese theaters for TAD components. I've exchanged many emails with Bill. He is very helpful and patient with even the most basic questions.
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Bill woods also offers three different conical horns as well. Here is a look at the AH! 700.



It seems Bill has been working on a new Bass horn. The AH!50 is a thing of beauty and I hope to hear it someday. The website says the prototype is too expensive for production but another production version is in the works. It features a bass horn and hist AH!300 horn.


Bill Woods has designed many horns over the years. Here is one of his large ones from the 70's. Gotta love large horns.


AH! Acoustic Horns

http://www.acoustichorn.com/

Friday, May 22, 2009

JBL Hartsfield 1955 - 1964



This is one of the classics. While it didn't have the longevity of the Klipsch bass horn designs it is still a classic. I would love to hear one of these beauties. The bass bin horn path was changed in 1964 and this is the version I am most interested in hearing. They also extended the top end beyond 10khz with this redesign. I haven't found a picture of the 1964 model yet but I am still looking.

The audioheritage website has a great write up of this classic. This is the place to start any research on JBL designs. It is a treasure trove of hi-fi history.
http://www.audioheritage.org/html/profiles/jbl/hartsfield.htm The Hartsfields biggest update was in 1964 which unfortunately was its last year in production and a mistake imo. It should have been allowed to evolve.