Subwoofer Controller needed!!! - 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 4th October 2008, 02:30 PM   #1
kibet85 is offline kibet85  Kenya
diyAudio Member
 
Join Date: Aug 2008
Default Subwoofer Controller needed!!!

Hi guys...m a newbe in the electronic world but can make simple circuits..i have a 12inc pioneer ts-w307f subwoofer..
http://www.pioneer.eu/eur/products/2...07F/index.html
its in a cabinet with the following dimensions-
lenght-32in by width-13in by depth-18in..The cabinet has 2 breathers.For the amp,have rodd elliots p68(240w version)....(bumps like hell)now,i want a sub controller that boosts frequencies bellow 60hz...
i have this car eq made by boschmann,eq75 pro...i use it as the sub controller. i like its sub output...very deep and defined especially in the low frequencies...(hope some of you guys have used it and can support me on this).
i want to do away with it coz theres alot of wiring.. involved!!!
what circuit can i make to achieve the same sound or even better...
i want to intergrate the circuit with the amp..
for the sound source,i use my pc.
i had seen a sub controller done by sillicon circuits...
http://www.siliconchip.com.au/cms/A_109076/article.html
i have the pcb schematic for it but i don't have the schematic...has anyone used it before and how does it sound and does anyone have its schematic....
then,theres rod elliots active sub controller,http://sound.westhost.com/project48.htm
Does this thing achieve wat i achieve with the Boschmann eqx-75 pro...
  Reply With Quote
Old 4th October 2008, 05:26 PM   #2
diyAudio Member
 
Join Date: Jan 2008
Location: Toronto and Delray Beach, FL
That Silicon controller has all kinds of nice features. But I think it is quite essential to not to have a mere 12 dB/8ave slope cross-over. That leaves way too much power into the upper speaker as well as into the lower speaker at frequencies either can't handle well.

For sure, one good LF speaker is better than two so-so ones. I find crossing over at 140 Hz (at 24 dB/8ave) is hunky-dorey. But for most mid-range speaker systems, you can go lower without compromise and then the LF speaker can be more specialized for its task and placement in the room less restricted.
__________________
Dennesen ESL tweets, Dayton-Wright ESL (110-3200Hz), mixed-bass Klipschorn (35-110), and giant OB using 1960's Stephens woofer (20-35); Behringer DSP. HiFi aspirations since 1956
  Reply With Quote
Old 4th October 2008, 09:09 PM   #3
diyAudio Member
 
Join Date: Oct 2006
Location: delhi
Default Re: Subwoofer Controller needed!!!

Quote:
Originally posted by kibet85
Hi guys...m a newbe in the electronic world but can make simple circuits..i have a 12inc pioneer ts-w307f subwoofer..
http://www.pioneer.eu/eur/products/2...07F/index.html
its in a cabinet with the following dimensions-
lenght-32in by width-13in by depth-18in..The cabinet has 2 breathers.For the amp,have rodd elliots p68(240w version)....(bumps like hell)now,i want a sub controller that boosts frequencies bellow 60hz...
i have this car eq made by boschmann,eq75 pro...i use it as the sub controller. i like its sub output...very deep and defined especially in the low frequencies...(hope some of you guys have used it and can support me on this).
i want to do away with it coz theres alot of wiring.. involved!!!
what circuit can i make to achieve the same sound or even better...
i want to intergrate the circuit with the amp..
for the sound source,i use my pc.
i had seen a sub controller done by sillicon circuits...
http://www.siliconchip.com.au/cms/A_109076/article.html
i have the pcb schematic for it but i don't have the schematic...has anyone used it before and how does it sound and does anyone have its schematic....
then,theres rod elliots active sub controller,http://sound.westhost.com/project48.htm
Does this thing achieve wat i achieve with the Boschmann eqx-75 pro...

hi kibe85

here is the schematic for silicon chip sub controller

http://i38.tinypic.com/2rfsupu.jpg
  Reply With Quote
Old 8th October 2008, 08:47 AM   #4
kibet85 is offline kibet85  Kenya
diyAudio Member
 
Join Date: Aug 2008
Default Not the correct schematic...

Hithe schematic you posted is not he correct one..thats for a crossover...now on to you ben,wat do you mean a mere12db/octave... m not that good in electronic terms....newbie..
  Reply With Quote
Old 8th October 2008, 03:37 PM   #5
diyAudio Member
 
Join Date: Jan 2008
Location: Toronto and Delray Beach, FL
Default Re: Not the correct schematic...

Quote:
Originally posted by kibet85

snip
ben,wat do you mean a mere12db/octave... m not that good in electronic terms....newbie..
Do the math.

Say your cross-over is 120 Hz, then using a 12 dB/8ave filter, the mid-range is playing strong input at 60 Hz and is down 15 dB (I hope somebody will correct me if that isn't numerically correct). That's a lot of LF to scramble into the mid-range sound.

Likewise, the woofer will be playing a lot of sound at 240 HZ which is directionally detectable and may not be a very sweet sound when produced by a woofer in a corner.

At one point in time, ways of blending the sound and audio qualities of drivers was a major concern. But I think for crossover points below 200 Hz, it is better to "hurry" the frequency separation and not fret the blending.

In another thread, I mentioned turning off my woofer for repairs. It crosses over at 140 Hz and 24 dB/8ave. I said that while detectable by ear, the loss to the music content is oddly small (not zero, just oddly small). Except for movie thrills and chills and maybe some organ music, nobody (except members of this board, of course) would notice the loss of a woofer if the crossover were 120 Hz and 12dB/8ave unless you prompted them. As a long term listener, you'd know right away, may I add, "of course" again.
__________________
Dennesen ESL tweets, Dayton-Wright ESL (110-3200Hz), mixed-bass Klipschorn (35-110), and giant OB using 1960's Stephens woofer (20-35); Behringer DSP. HiFi aspirations since 1956
  Reply With Quote
Old 13th October 2008, 06:42 AM   #6
kibet85 is offline kibet85  Kenya
diyAudio Member
 
Join Date: Aug 2008
hi ben,still resarching on that 12db vs 24db filtering...anyway,tell me wat you think about this schematic...
Attached Files
File Type: pdf sub_control_schematic[1].pdf (18.9 KB, 230 views)
  Reply With Quote
Old 13th October 2008, 12:06 PM   #7
diyAudio Member
 
Join Date: Jan 2008
Location: Toronto and Delray Beach, FL
kibet85 -

I don't have the skills to offer a postable opinion. Kind of looks like a conventional filter design.
__________________
Dennesen ESL tweets, Dayton-Wright ESL (110-3200Hz), mixed-bass Klipschorn (35-110), and giant OB using 1960's Stephens woofer (20-35); Behringer DSP. HiFi aspirations since 1956
  Reply With Quote
Old 15th October 2008, 02:15 PM   #8
diyAudio Member
 
Join Date: Sep 2008
There's also this
http://www.edesignaudio.com/product_...roducts_id=657
  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
Subwoofer controller Denis.BR Subwoofers 4 9th March 2007 02:43 PM
EAS subwoofer controller broblem romulo_rosil Solid State 3 15th March 2006 01:07 AM
subwoofer level controller ECM Car Audio 3 24th July 2004 04:51 PM


New To Site? Need Help?

All times are GMT. The time now is 12:14 AM.


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