• The move to the new server is done. There are some software and database maintenance updates in process. This has us passing the hat around to help out. We appreciate any donations. Seriously, even a dollar helps. The payment page may be found here - https://www.audiokarma.org/support.html

Open Baffle Epiphany!

... and at the other end of the spectrum :-)
Some profoundly quick n dirty test baffles I "built" for testing 8" "fullrange" drivers a coupla weeks ago. Do they sound great? No. Do they image like mofos as a stereo pair? You betcha.

DSC_3760 by Mark Hardy, on Flickr

Note the audiophile approved clipleads and gen-u-ine New Hampsha granite counterbalance rocks -- nothing but the best.

DSC_3770 by Mark Hardy, on Flickr
DSC_3773 by Mark Hardy, on Flickr
 
mhardy6647 said:
... and at the other end of the spectrum :-)
Some profoundly quick n dirty test baffles I "built" for testing 8" "fullrange" drivers a coupla weeks ago. Do they sound great? No. Do they image like mofos as a stereo pair? You betcha.
Note the audiophile approved clipleads and gen-u-ine New Hampsha granite counterbalance rocks -- nothing but the best.
Click to expand...

...and why not? Something missing?
 
tomlinmgt said:
I'm no expert but I'm thinking the narrow baffle on those things can't be doin' much to help the reproduction of LF content. :scratch2:
Click to expand...

Also considering where it was used (in 3 way systems) it's more of a wide range mid. No earth-shaking lows here:D
I was just wondering about the quality of sound that it does reproduce actually.
 
Ah, I see...not familiar with that particular driver.

Well, the poor things sure have a high bar to meet...the kings of mid range are sitting right next to them.
 
mhardy6647 said:
... and at the other end of the spectrum :-)
Some profoundly quick n dirty test baffles I "built" for testing 8" "fullrange" drivers a coupla weeks ago. Do they sound great? No. Do they image like mofos as a stereo pair? You betcha.
Click to expand...

Looking good to me. What about the BIG baffles? Have you posted earlier about building those?
 
mhardy6647 said:
... and at the other end of the spectrum :-)
Some profoundly quick n dirty test baffles I "built" for testing 8" "fullrange" drivers a coupla weeks ago. Do they sound great? No. Do they image like mofos as a stereo pair? You betcha.

DSC_3760 by Mark Hardy, on Flickr

Note the audiophile approved clipleads and gen-u-ine New Hampsha granite counterbalance rocks -- nothing but the best.

DSC_3770 by Mark Hardy, on Flickr
DSC_3773 by Mark Hardy, on Flickr
Click to expand...

Most cool.

I really like the 'New Hampsha granite counterbalance rocks'. Very 'chic'. ;)

If you are going to run the 8" by itself, have you considered the JE Labs design? I used that design with the University 6201 coaxials with great results.
 
The Duplexes are in Billfort's design vented cabinets -- and they're superb.
http://www.wardsweb.org/Billfort/

DSC_5735 by Mark Hardy, on Flickr

The LS-8 was sold as a 'fullrange' driver by EV -- it is capable of very pleasant broadband performance appropriately baffled, but obviously these baffles are (way) too small. They sound thin and even a bit nasal off axis, but they're actually pretty beguiling on-axis. They do indeed make bitchen midranges, as EV themselves used them in, e.g, the original version of the Esquire loudspeaker system.


EV Esquire noflash by Mark Hardy, on Flickr

The LS-8 works pretty well in EV's (original version) Coronet enclosure -- but that's another subject entirely...

EV Coronet by Mark Hardy, on Flickr
 
Last edited:
Steppin' up the plate again.

Details here....

http://www.audiokarma.org/forums/showthread.php?p=8825195#post8825195

attachment.php
 

Attachments

  • 1808Dipole15OB.jpg
    1808Dipole15OB.jpg
    106.7 KB · Views: 807
Last edited:
Got yesterday a set of Electro Voice MC8 driver in the mail to replace the ringing mid horn which drove me nuts with the lisp it produced with some singers.

Now the mids are behaving miss you better and the lisp is gone. Here version version 2.1

attachment.php


Still thinking about changing the crossover a little bit or even go 3.5way by with a lower crossing at 800Hz instead of 1500Hz to let the MC8 coming lower. At the moment it works only from 1500 to 5000 Hz. It would take more of the upper frequencies from the Eminence away since that seems to become very dominant from 800 upwards.


image.jpg
 
Last edited:
Ordered 4 of these 10" Titan buy out woofers from Parts Express. The fact that they're suitable for free air with a high Qts. of 1.41 got me interested but the $13 price tag is what sold me. They're 8 ohm which means I can drive them paralleled with a cheap plate amp. I'm thinking I might try them in the smaller double H-bombs. If they don't work out I'm not out much and PE does have a liberal return policy.

http://www.parts-express.com/titan-10-paper-cone-foam-surround-woofer-8-ohm--299-1008
 
H-Bomb sounds good :-)

I was wondering in regard to H frames if the woofer in them really needs to stand upright or if it could be mounted in a 45 degree angle firing slightly upwards or downwards in the frame. Would this feminist output SPL? I'm asking this because this would reduce height of the H frame a little and would make it more appealing for a lower speaker height when mounting the HF part above Oma baffle. Have you ever tried that?
 
Poultrygeist said:
Ordered 4 of these 10" Titan buy out woofers from Parts Express. The fact that they're suitable for free air with a high Qts. of 1.41 got me interested but the $13 price tag is what sold me. They're 8 ohm which means I can drive them paralleled with a cheap plate amp. I'm thinking I might try them in the smaller double H-bombs. If they don't work out I'm not out much and PE does have a liberal return policy.



http://www.parts-express.com/titan-10-paper-cone-foam-surround-woofer-8-ohm--299-1008
Click to expand...


Nice, PG. I enjoy reading about how you always work to bring new OB ideas to AK and also how you show the community how to get really good sound without having to break the bank. Well done! :yes:
 
darg said:
H-Bomb sounds good :-)

I was wondering in regard to H frames if the woofer in them really needs to stand upright or if it could be mounted in a 45 degree angle firing slightly upwards or downwards in the frame. Would this feminist output SPL? I'm asking this because this would reduce height of the H frame a little and would make it more appealing for a lower speaker height when mounting the HF part above Oma baffle. Have you ever tried that?
Click to expand...

You might want to take a look at slot loaded. Here are the other types.

http://www.hifizine.com/2012/12/subwoofer-origami/
 
You must log in or register to reply here.
Back
Top Bottom