Compromise driver orientation? - 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 22nd September 2011, 05:03 AM   #11
diyAudio Member
 
Join Date: Nov 2004
Click the image to open in full size.
  Reply With Quote
Old 23rd September 2011, 06:34 AM   #12
djk is offline djk
diyAudio Member
 
djk's Avatar
 
Join Date: Feb 2001
Location: USA
So you made something like the Muse Model 18 subwoofer?

That was a well regarded product back in its day.
__________________
Candidates for the Darwin Award should not read this author.
  Reply With Quote
Old 23rd September 2011, 02:43 PM   #13
epa is offline epa  Netherlands
diyAudio Member
 
Join Date: Apr 2010
Location: amsterdam
put some glue under the books and lamp.
this wil keep the wife happy
__________________
one good thing about music ,when it hit you feel no pain.
so hit me with music
.
  Reply With Quote
Old 23rd September 2011, 03:42 PM   #14
diyAudio Member
 
Join Date: Nov 2004
.
Quote:
put some glue under the books and lamp.
this wil keep the wife happy
...and the elephant? I looked up the Muse model 18. Ported, dual downfiring 10 inch. What similarities are you suggesting?

"well regarded in its day" ? Damning faint praise ? Using a modern, somewhat state of the art, driver such as the 2011 Vifa, I'd like to implement it to it's fullest advantage. If I'm gonna diy I'd I might as well bring things a little 'up to date'.

I am, it seems, in a minority of types who actually prefer to have my sound reproduction as invisible as possible. My equipment is always behind a closed cabinet door. I'd love to actually have invisible speakers! My mains have always been as unobtrusively non-attention getting as possible. I've even flirted with the idea once of constructing a false wall of sheer fabric, of a color to match the other wall's paint, behind which are the speaker components. But it'd be an unreasonable use of floor space for any average sized home,

There was a quote from a review of that Muse sub that's worth repeating.

Quote:
"To me, subwoofers often sound detached from the music, providing an accompanying thump that bears little relationship to the sound from the main speakers. Rather than revealing the music/s harmonic underpinnings, subwoofers often obscure them in a thick morass of featureless boom."
There was a post in another thread here recently that suggested that there's little here at diyaudio for "real" subwoofer enthusiasts since the crowd here seems overwhelmingly music vs home theater oriented. So there's that little to share on the subject with 100 percent pure music types?

Frankly, I've never met a sub I didn't like.... within reason. I'm excluding the plastic box that comes with the set of desktop computer extensions. But most competent subs will 'fill' that bottom that the six inch, or even an eight inch, mains just needn't be tasked with. Despite the fact of its greater energy, I'd describe the job of a sub in most musical applications as "delicate". If I had a TC Sounds LMS Ultra 5400 18" DVC Subwoofer in a box with 2000 watts under the hood, I'm pretty sure that I'd be dialing that baby back to zero and then trimming upward to the point where I just, I mean just, begin to perceive it rounding out and supporting my mains at comfortable listening levels. It would do a really sweet job. For for my tastes and needs, I can get 98 percent of what I'd demand of that driver/amp at about 1/10 the price.

I used to follow the proceedings over at zaphaudio pretty closely. I'm very much in accord with his no nonsense, let's-raise-the-art-of-affordable-two-channel-stereo-diy approach. But he often seemed to have a slightly uncomfortable accomodation for subs. He'd insert a recommendation for their use toward the end of the build instructions for some of his smaller offerings, but a few times made it clear that he generally preferred their absence.

I've been kind of 'hooked' on subwoofers since I worked at an audio store way back in high school in the 70s. Something almost magical about how it lifts and supports what is issuing from the mains. There's a point at which you just barely dial them in, which may not even correspond to any theoretically perfect plot/curve/rise/flatness/level-matching, where the mains just seem to breathe life. That's the magic point for me.

Last edited by peace brainerd; 23rd September 2011 at 03:52 PM.
  Reply With Quote
Old 23rd September 2011, 04:30 PM   #15
johnr66 is offline johnr66  United States
diyAudio Member
 
Join Date: Mar 2009
I find that any sub that adds an element of "boom" to the music is ill designed junk that has a significant peak in the response curve. A lot of the small cab stuff with the port sound boomy. The little computer speaker subs are the worst offenders followed by the department store subs with the small ported cabs. A lot of people seem to like this. I guess it just shows how subjective audio can be.

In my DIY setup, I can't point out where the bass is coming from even though I like to turn the bass up a bit.
  Reply With Quote
Old 23rd September 2011, 08:58 PM   #16
Speakerholic
diyAudio Moderator
 
Cal Weldon's Avatar
 
Join Date: Jan 2004
Location: Near Vancouver
Quote:
Originally Posted by peace brainerd View Post
It's solid oak.
Click the image to open in full size.
Depending on where in the world it was made and when, that might be Ash rather than Oak. Cheers if it is, great find.
__________________
Next stop: Margaritaville
Some of Cal's stuff | Cal Weldon Consulting
  Reply With Quote
Old 23rd September 2011, 09:04 PM   #17
djk is offline djk
diyAudio Member
 
djk's Avatar
 
Join Date: Feb 2001
Location: USA
"What similarities are you suggesting? "

The Muse is slot loaded, the drivers do not point down.

"A six inch wide slot in the front of the sub cabinet is formed by a false front"
__________________
Candidates for the Darwin Award should not read this author.
  Reply With Quote
Old 23rd September 2011, 09:57 PM   #18
diyAudio Member
 
Join Date: Nov 2004
Quote:
"Moving on to the acoustical configuration ,two 10" long throw woofers are mounted vertically in the cabinet, firing into the slot that runs down the enclosure center"
Oops, quite right. In the first paragraph an "acoustic slot" was mentioned as well as a description of the sub being downfiring. I put the two together and assumed that the slot was a port and that the drivers were mounted downward.

Cal, do you think it's worth my while to return this driver in exchange for the
Peerless XLS 12 inch? Think it would be worth the extra 40 dollars for the type of sub duty I've described? Vifa calls this driver, in various places, a "subwoofer", but it does seem to occupy a space between a conventional 12inch woofer and most "subwoofers".
  Reply With Quote
Old 23rd September 2011, 10:05 PM   #19
diyAudio Member
 
revboden's Avatar
 
Join Date: Feb 2011
Quote:
Originally Posted by peace brainerd View Post
....and the elephant?
Yes, the elephant too.

Quote:
Originally Posted by peace brainerd View Post
There was a post in another thread here recently that suggested that there's little here at diyaudio for "real" subwoofer enthusiasts since the crowd here seems overwhelmingly music vs home theater oriented. So there's that little to share on the subject with 100 percent pure music types?
pure music types... 'cough' BS 'cough',
some of us are mastering engineers for movie production. FOH squeeks, roadies, system designers, and Cal. what more could a person want?
  Reply With Quote
Old 23rd September 2011, 10:08 PM   #20
diyAudio Member
 
revboden's Avatar
 
Join Date: Feb 2011
Have you considered a PPSL to keep the vibes down.

two SD315A-88 12" would be nice in a sealed ppsl box.

Last edited by revboden; 23rd September 2011 at 10:13 PM.
  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
Interesting finding: Driver orientation effects T/S parameters. ByronInPortland Subwoofers 19 13th June 2011 01:20 AM
Driver orientation for T/S parameters Buzzy Subwoofers 2 7th May 2008 02:39 PM
Port And Driver Orientation? jpvt68 Subwoofers 7 7th April 2008 10:30 PM
Looking for a copy of Adireaudio's Driver Orientation pdf? TimA Subwoofers 3 2nd August 2007 12:02 PM
Isobaric driver orientation: which is best? Javaman Multi-Way 25 1st January 2002 12:20 AM


New To Site? Need Help?

All times are GMT. The time now is 07:03 PM.


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