Collaborative Tapped horn project - Page 163 - 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 25th April 2008, 10:42 AM   #1621
diyAudio Member
 
Join Date: Nov 2006
6 Labs at home sure would tear your house apart Overkill at itīs best
  Reply With Quote
Old 25th April 2008, 03:34 PM   #1622
zobsky is online now zobsky  India
diyAudio Member
 
zobsky's Avatar
 
Join Date: Mar 2002
Location: Dallas, Tx, USA
Quote:
Originally posted by hm
Hello,

I donīt want to disturb,

but I have an idea to improve the tapped horns at the low,
~ 1 oktave, and the size, take two ! one ~1,7 m and one ~2,6 m,
place it so the mouths have a distance, IMO 65 cm, but this can
be different, move them, and connect it parallel, the IMP goes
below ~50 Hz flat 4Ohm, and donīt laugh, the short horn makes
more SPL below 40 Hz!

You can get the effect of bass horn mouth distance and
membran movement cross setting, by partial delete ~ 100 Hz
(mouth distance) may be useful up to ~250 Hz.

give it a try,

more or less the same effect like my double horns.

take soft fibre board the 1 m + press chamber

-----
When i listen 100 dB impuls in my 22 qm room, 3,5 distance,
gets my furniture in the back noisy and want to move,
90 dB in normal roooms are loud enough, 1 W is normally
"10 a clock" at the volume control, "12" ~ 10 W impuls.
Could you sketch this out, . I don't follow some of your english.
Thanks
__________________
"Any fool can know. The point is to understand" - Albert Einstein
  Reply With Quote
Old 25th April 2008, 06:10 PM   #1623
diyAudio Member
 
MikeHunt79's Avatar
 
Join Date: Aug 2003
Location: Bristol, UK
90% there, I've screwed it all together with no glue to be sure everything fits, and it does. Tomorrow will be glue, mount driver and shake the house day.

Click the image to open in full size.
Quote:
Originally posted by JLH
You should be able to put the full 600W into that 12HO. They are very well made drivers. Xmax in real life tends to be about 1/3 that Hornresp predicts. It is unreal how little the cone moves and you are making a ton of sound. Gotta love tapped horn subwoofers.
Awesome, I'll be using a DCX2496 so I'll hook my multimeter up to the speaker outs, and make sure the limiter it set. It does seem like a really nice (and heavy!) driver, and it'll be great to finally hear it in action (it's been sat around for many months. ).
Quote:
Originally posted by djk
In real life we don't play sine waves.

If you mix two sine waves an octave apart at a 1:1 ratio (more like music) then the 600W total amplifier output gets split so that each tone would only get 35V, or 150W from the 70V, 600W amplifier. The higher tone only makes the cone move a fraction of what the lower tone does, net result is 600W program is not a problem for these kind of designs.
Gotcha... My amp will do around 900W bridged, but I'll be using a limiter to prevent any toasted voicecoils.
Quote:
Originally posted by Brett
I agree. it's VERY loud. I never put more then about 10W (measured on a Fluke RMS DVM @ <60Hz) into my LABhorns when I had them in the big living room.

No SO to yell at me; usually it's the neighbours or Police.
Sounds loud, I think being in a detached house will be to my advantage here.
  Reply With Quote
Old 25th April 2008, 07:02 PM   #1624
JLH is offline JLH  United States
diyAudio Member
 
JLH's Avatar
 
Join Date: Apr 2005
Location: Indianapolis, IN
Quote:
Originally posted by Brett
I agree. it's VERY loud. I never put more then about 10W (measured on a Fluke RMS DVM @ <60Hz) into my LABhorns when I had them in the big living room.

No SO to yell at me; usually it's the neighbours or Police.

Cool. So the 6 LAB12 driver versions I'm starting to cut up the wood for should do.

JLH, are you the guy that turned up Romy's midbass horns? If so, impressive.
Yes, I made Romy's horns. It's not as hard as it looks. You just need to be able to solve problems on the fly, and be very determined. Nothing works right the first time to just please you, you have to make the damn thing work.
  Reply With Quote
Old 25th April 2008, 08:23 PM   #1625
hm is offline hm  Europe
diyAudio Member
 
hm's Avatar
 
Join Date: Feb 2004
Location: near Hamburg Germany
Hello zobsky,

what donīt you get?

do you read my double horns and about what,
there you find explanations.
__________________
http://www.hm-moreart.de
  Reply With Quote
Old 25th April 2008, 08:53 PM   #1626
Killjoy is offline Killjoy  United States
diyAudio Member
 
Join Date: Apr 2007
Default Still Don't Understand

Quote:
Originally posted by hm
Hello zobsky,

what donīt you get?

do you read my double horns and about what,
there you find explanations.
Hello hm:

What you say sounds interesting, but it is not clear. Your english is not clear enough for me to grasp your concepts. Please illustrate with a diagram.


__________________
Killjoy or is it Chipsahoy
  Reply With Quote
Old 25th April 2008, 09:05 PM   #1627
tinitus is offline tinitus  Europe
diyAudio Moderator R.I.P.
 
Join Date: Nov 2005
double drivers
Attached Images
File Type: jpg tappet.jpg (16.4 KB, 874 views)
__________________
sometimes we know very little, and sometimes we know too much
  Reply With Quote
Old 25th April 2008, 09:29 PM   #1628
tb46 is offline tb46  United States
diyAudio Member
 
Join Date: Jan 2006
Location: Texas
Default double drivers

Hi tinitus: you may want to take a look at Post #28.
__________________
Oliver
  Reply With Quote
Old 25th April 2008, 09:38 PM   #1629
hm is offline hm  Europe
diyAudio Member
 
hm's Avatar
 
Join Date: Feb 2004
Location: near Hamburg Germany
Hello,

please look the measurement of the system,
and below the single simulation,
http://www.hm-moreart.de/104.htm

physically the same as my idea and a smallest study abouit that,


Click the image to open in full size.
__________________
http://www.hm-moreart.de
  Reply With Quote
Old 25th April 2008, 10:48 PM   #1630
MaVo is offline MaVo  Germany
diyAudio Member
 
Join Date: Jan 2006
I try to grasp the concept, but the german is as cryptic as the english. Maybe some further explanations could be helpfull for us to understand what you intend.
  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



New To Site? Need Help?

All times are GMT. The time now is 02:27 PM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright Đ1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2