Virtual Organ Stacked Horn Sub Questions - Page 2 - 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 14th February 2013, 12:46 AM   #11
diyAudio Member
 
Join Date: May 2006
Are you buying amps or using whatever is already there? If you have to work with existing amps that will narrow down your driver choices a bit.
  Reply With Quote
Old 14th February 2013, 12:58 AM   #12
bjorno is offline bjorno  Sweden
diyAudio Member
 
Join Date: Mar 2005
Location: Jacobsmountain
Send a message via MSN to bjorno
Hi,

Played with an earlier suggested driver...

Did you test simulating ' Organ-subs' like a T-TQWT or a T-QWP's that in the reality really can pass a 16'stopped pipe tone whitout adding 'Horn' sounding 'strained' due to the work with a a very high compression'?

b
  Reply With Quote
Old 14th February 2013, 04:10 AM   #13
diyAudio Member
 
Join Date: Jun 2004
Location: Indiana
Not sure I understand your question. e.g.

Click the image to open in full size.

The Stereo Integrity seemed to prefer a straight pipe. I didn't do TH for the Stereo Integrity but I did for Lab12 and Titanic 15. They did have some compression but not a huge amount.

Lab12...

Click the image to open in full size.

Titanic...

Click the image to open in full size.
Attached Images
File Type: png StIntTL.png (23.5 KB, 240 views)
File Type: png Lab12TH.png (27.6 KB, 148 views)
File Type: png Titanic15TH.png (25.4 KB, 147 views)
__________________
If We The People refuse to hear the truth we will be ruled by liars.
  Reply With Quote
Old 14th February 2013, 01:06 PM   #14
diyAudio Member
 
Join Date: Jun 2004
Location: Indiana
At first I didn't get what you meant by T-TQWT. By the light of day I think I see that it is simple a TH with decreasing tapper rather than expanding horn. I can see that it should give a little bit better bandwidth (at the expense of a little bit of output) and probably be easier on the driver physically. I will run some sims when I get a chance and report back.

Thanks again for all the helpful input.
__________________
If We The People refuse to hear the truth we will be ruled by liars.
  Reply With Quote
Old 19th February 2013, 12:46 AM   #15
diyAudio Member
 
Join Date: Jun 2004
Location: Indiana
Just realized that I forgot to answer justaguy's question. Virtually everything including amplification will be new. We have a couple of 200WPC mixer amps that may be pressed into service for some of it but basically we are starting from scratch. I doubt that we will be spending the kilo-bucks necessary for multiple kilowatt per channel amps so IB is probably out of the question and reasonable efficiency would be a goal.
__________________
If We The People refuse to hear the truth we will be ruled by liars.
  Reply With Quote
Old 19th February 2013, 01:35 AM   #16
jbell is offline jbell  United States
diyAudio Member
 
Join Date: Apr 2003
Location: .
q4u:

If "almost all" real organs do the 'missing fundamental' thing, and don't really have 64' ranks... why would you need 16hz?

Does your virtual organ patch do a real C0, or does it beat together two tones for a missing fundamental? (hauptwerk?)

Double check before you design your pedal section.

Last edited by jbell; 19th February 2013 at 01:57 AM.
  Reply With Quote
Old 19th February 2013, 04:16 AM   #17
diyAudio Member
 
Join Date: Jun 2004
Location: Indiana
32' rank is 16Hz, 64 would be 8Hz. Several dispositions do have 32' flutes or diapasons which will have a pretty good fundamental.
__________________
If We The People refuse to hear the truth we will be ruled by liars.
  Reply With Quote
Old 19th February 2013, 09:01 AM   #18
diyAudio Member
 
Join Date: May 2006
Quote:
Originally Posted by mashaffer View Post
I doubt that we will be spending the kilo-bucks necessary for multiple kilowatt per channel amps...
It's not just drivers that are dropping dramatically in price these days.

Aliexpress.com : Buy fp14000 digital power amplifiers from Reliable professional amplifier suppliers on Guangzhou Sanway Audio Factory

A bit less than 1 kilo-buck will get you 14000 watts rms if you don't mind dealing directly with China (and the problems that can come from that).
  Reply With Quote
Old 19th February 2013, 11:34 AM   #19
diyAudio Member
 
Join Date: Sep 2008
Have you checked the resonance frequency of any walls, ceiling and floor?
As well as any pillars/supports?

Many organs not using 16Hz is probably not because they couldn't but because they shouldn't. Structural damage put the end to any 8Hz organ built.

I would not buy the amp above. Designing an amp with that amount of power takes a bit more effort than point and clone. Or they could have improved quality over LABgruppen, they certainly have higher power specifications.
  Reply With Quote
Old 19th February 2013, 04:37 PM   #20
diyAudio Member
 
Join Date: May 2006
Quote:
Originally Posted by David_Web View Post
I would not buy the amp above. Designing an amp with that amount of power takes a bit more effort than point and clone. Or they could have improved quality over LABgruppen, they certainly have higher power specifications.
These amps are famous for having issues, but the issues are more along the lines of quality control and packaging, not engineering. But even so, there's a whole community of people that are extremely happy with them, even people that received them DOA due to improper voltage setup (fixed by adjusting a variable resistor) and people who received them slightly smashed due to improper packaging. Being able to overlook issues like that and still be a happy customer is a pretty strong endorsement.

Lab Gruppen FP14000 clone amplifiers

If you don't like the risk and prefer to have a middleman between yourself and China, the Behringer EP4000 is available for around $300 from WalMart.

The point here is that power is not expensive anymore, especially if you live in the USA.
  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
Virtual Organ Stacked Horn Sub Questions mashaffer Subwoofers 0 13th February 2013 02:35 AM
Virtual breadboard of a mono CMOY. Have a few questions alfa147x Chip Amps 13 3rd April 2012 05:55 PM
Audio Newbie Questions on Virtual Surround vonzevon Everything Else 3 21st April 2007 06:00 AM
horn questions e-side Multi-Way 39 22nd August 2005 08:39 PM
Horn questions slackerbob Subwoofers 11 1st August 2005 10:31 PM


New To Site? Need Help?

All times are GMT. The time now is 07:30 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