First time OB builder - Page 9 - diyAudio
Go Back   Home > Forums > Loudspeakers > Multi-Way

Multi-Way Conventional loudspeakers with crossovers

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 12th September 2012, 06:10 AM   #81
diyAudio Member
 
Join Date: Jul 2003
Gotta agree, measure twice, buy once.
Dont see a problem with a mix of materials though. As far as Im concerned its all about optimising the drivers within their operating range and using their strengths to suit your purposes.
  Reply With Quote
Old 12th September 2012, 06:14 AM   #82
diyAudio Member
 
picowallspeaker's Avatar
 
Join Date: Apr 2007
Studio ,
it seems like a tele-controlled surgery session
It really frightens me
  Reply With Quote
Old 12th September 2012, 06:25 AM   #83
diyAudio Member
 
Join Date: Feb 2012
Location: Brisvegas
That’s funny Greg I just spoke with the guy I bought the RAALs off to get a price on a pair of dipole RAALs, and he said the exact same thing.
He said I should knock up a small - couple of litre sealed box, with heavy fill and listen to them again to see if that changes the way I hear them. Since that is what they are designed for, it’s only fair to hear them in the environment for which they were designed.
Since they are going to be used in rear speakers eventually, it probably isn’t bad to do that and make a comparison anyway. I already have a Dayton Onmi Mic V1 sitting here ready to go, I just need to work out how to make it work with the Ground Sound software.
Figuring out how to configure it has me confused talks about loop backs etc. I don’t know the first thing about measuring. I think I have worked out how to loopback on my laptop, I have a double ended 3.5mm jack which I can plug the mic into the headphones socket.
Curious as to your thinking behind why it would be less coloured in a cabinet… I thought the cabinet is the culprit.
  Reply With Quote
Old 12th September 2012, 06:28 AM   #84
diyAudio Member
 
Join Date: Jun 2004
Location: Orlando, FLA
Quote:
Originally Posted by picowallspeaker View Post
Studio ,
it seems like a tele-controlled surgery session
It really frightens me
Hey, send me a plane ticket to "down under" and I'll help a fellow DIY'er in person. Cheaper than Raal Dipoles! Wadda ya say Silent, ready to man up?

Just kidding, kinda...

  Reply With Quote
Old 12th September 2012, 06:40 AM   #85
diyAudio Member
 
Join Date: Feb 2012
Location: Brisvegas
lol don't worry the RAALs wouldn't go to waste. If I bought some dipoles I would make a traditional centre and use at least one in that.
  Reply With Quote
Old 12th September 2012, 06:40 AM   #86
diyAudio Member
 
Join Date: Jun 2004
Location: Orlando, FLA
Well, in a GOOD cabinet with proper absorption of the back wave, you will get a nice clean sound for sure. In this situation you will also get a nice freq response. Something that looks close to manufacturers specs. Now play that same driver swinging in the breeze, naked as a baby and you are going to get HORRIBLE sound right off the bat. You need to measure the naked response, correct for the dipole rolloff and only then have a good listen. Yes, they are made to go in a box, but with proper EQ they can play just fine in dipole mode too. Spend a bunch of time reading here:

Linkwitz Lab - Loudspeaker Design

Tech

I think you must have the Dayton EMM mic? The Omnimic uses a USB interface and comes complete with matching software. There's plenty of info on the Omnimic setup and use if you search the P.E. forum or over at the AVSForums in the diy section.

Keep plugging away and you can end up with something world class. So many DIY'ers are all about budget and bang for the buck. Those of us aspiring for the highest possible results gotta try to make a good showing too!
  Reply With Quote
Old 12th September 2012, 06:50 AM   #87
diyAudio Member
 
Join Date: Feb 2012
Location: Brisvegas
Nope we are definitely talking the right mic, it has the mini usb plug. The difference between v1 and v2 is the v1 they give you a code to plug into the software, whereas v2 comes with a calibration file. Only problem is that code only works in the Dayton software…
Dayton have an offer whereby if I send it to them they will calibrate it for free and send me a calibration file. Been thinking I should pull my finger out and do this since the Ground Sound software needs the calibration file to level the mic, which I currently can’t do.
The setup issue I have been having are with the GS software as you measure in it, and it can automatically do all kind of whizz bang auto programming stuff to flatten the response.
  Reply With Quote
Old 12th September 2012, 12:57 PM   #88
diyAudio Member
 
Join Date: Feb 2012
Location: Brisvegas
Tried to see if I could get this sound card stuff sorted out...

Reading through the help I cant see where you are supposed to hook in the multi meter.

Help please!
Attached Images
File Type: jpg Settings.jpg (300.6 KB, 248 views)
File Type: jpg Soundcard.jpg (433.0 KB, 225 views)
File Type: jpg Stimulus.jpg (687.1 KB, 214 views)
File Type: jpg Microphone.jpg (169.0 KB, 189 views)
File Type: jpg Parameter Settings.jpg (263.8 KB, 183 views)
  Reply With Quote
Old 12th September 2012, 03:02 PM   #89
diyAudio Member
 
Join Date: Jun 2004
Location: Orlando, FLA
Leave the Ground Sound software for later. Use the Omnimic as intended. Let's just get some initial sweeps and EQing.

Can't you manually adjust the Ground Sound processing? In most cases, except for maybe DEQX, auto settings aren't the best and even then most people mod what the DEQX sets anyway.
  Reply With Quote
Old 15th September 2012, 07:01 AM   #90
diyAudio Member
 
Join Date: Feb 2012
Location: Brisvegas
Yes it does allow quite a bit of flexibility, I was planning on running the auto setting just to get a base line.

Have been playing with the crossover some more, and clocking a couple more hours up on the green 12MUs. I now have the crossover set at 2900 and 500.

I have to crossover one side or the other of the main vocals to get a clean sound out of both the tweeter and the mids. I am still somewhat amazed by the image that is projected from a single speaker in less than optimal configuration.

Also a couple of hours away from placing an order for a set of the RAAL dipole 140-15D's. I figure if I am going to commit to dipole I have to commit properly.

Figuring I can use one or both of the RAAL 140-15D AM's in a regular BR cabinet centre speaker.
  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
First time subwoofer builder broz Subwoofers 17 28th December 2011 09:09 PM
First time builder hack247.co.uk Multi-Way 0 29th May 2006 08:51 PM
First time builder question MPM Multi-Way 13 1st October 2004 10:52 PM
First time builder, need advice. apetersn Tubes / Valves 26 5th July 2004 10:20 AM


New To Site? Need Help?

All times are GMT. The time now is 02:36 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