Go Back   Home > Forums > Loudspeakers > Full Range

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 28th April 2013, 05:48 PM   #11
diyAudio Member
 
Join Date: Apr 2013
Location: West Coast of Florida
Quote:
Originally Posted by zman01 View Post
scaleautoart,

Please not that the break-in period for the MA Alp 7 is greater than 20 hours. However many of DIYers who've built speakers using the Alp 7.3 feel that the sound is well worth the wait.

Have fun!
Yes...I am aware of this [thanks]. I was referring to the "initial" break in period that they recommend. This is light vocals, etc at low volumes. I am now past that and ready to start running them in on the folded horns. I don't think it hurts to get some time on them while I wait for the Frugels which will be at least a few weeks.
  Reply With Quote
Old 28th April 2013, 05:53 PM   #12
zman01 is offline zman01  Bangladesh
diyAudio Member
 
Join Date: Feb 2011
Location: Dhaka
Quote:
Originally Posted by scaleautoart View Post
I don't think it hurts to get some time on them while I wait for the Frugels which will be at least a few weeks.
No harm at all, and the smart thing to do.
  Reply With Quote
Old 28th April 2013, 10:09 PM   #13
diyAudio Member
 
Join Date: Apr 2013
Location: West Coast of Florida
I mounted the Markaudio Alpair 7 drivers into the Fostex folded horns today and even after a mere 20 hours of break in they surpass the 126 drivers that they are designed for....much smoother highs and deeper base [actually the 126 drivers display little base at this point but I only have about 50 hours on them].

I can only assume that in the FH3 enclosures they will really shine.
  Reply With Quote
Old 29th April 2013, 06:15 PM   #14
diyAudio Member
 
Join Date: Apr 2013
Location: West Coast of Florida
Flying strictly by the seat of my pants I mocked up a set of Supra Baffles which also made the drivers flush. To me these have widened the sound stage. I tend to listen pretty close up so it helps in this case.

As can be seen one speaker sits on a hearth and the other is propped up on a box until I make a base for it. Yes...this is an odd setup but I am getting decent results.
Attached Images
File Type: jpg Alpair 7 with Supra Baffle 001.JPG (95.6 KB, 126 views)
File Type: jpg Alpair 7 with Supra Baffle 002.JPG (104.3 KB, 125 views)
  Reply With Quote
Old 2nd May 2013, 02:39 PM   #15
diyAudio Member
 
Join Date: Apr 2013
Location: West Coast of Florida
A quick follow up on the Alpair 7 drivers in this enclosure...pretty darn good. Only thing I would think might apply is to rebate the opening or make a baffle [similar to my test photos].

Again...I am new at this and very few have chimed in with suggestions or advice in my direction. Dave from Planet10 tells me the FH3 enclosures would have more "finesse". The question is would it make sense to use the FH3 to get the most out of these Alpair drivers or would the change be subtle?
  Reply With Quote
Old 2nd May 2013, 02:58 PM   #16
GM is offline GM  United States
diyAudio Member
 
GM's Avatar
 
Join Date: Jun 2003
Location: Chamblee, Ga.
FWIW, early on, Markaudio cautioned that horn loading its drivers wasn't a good plan, so there's been little experimentation AFAIK, so it wouldn't hurt to ask if this is still true with its more current products.

The FH3 OTOH doesn't load the driver anywhere near the same as a traditional BLH such as the Fostex design even though at a glance they are both what I call big vent reflexes [BVRs], i.e. 1/4 WL TL loading over most of its BW with only its HF BW being 1/2 WL horn loaded, so probably OK for Markaudio products since they work well in other mass loaded [vented] TL alignments [aka MLTL] where there's been much experimentation/build results posted.

GM
__________________
Loud is Beautiful if it's Clean! As always though, the usual disclaimers apply to this post's contents.
  Reply With Quote
Old 3rd May 2013, 03:11 PM   #17
diyAudio Member
 
Join Date: Apr 2013
Location: West Coast of Florida
First series of EnABLE pattern applied [first attempt]. Not sure how many ring patterns are needed for the newer 126 driver...some I have seen only have more applied around the dust cap area and none in the mid section.
Attached Images
File Type: jpg EnABLE 126 002.JPG (93.9 KB, 71 views)
  Reply With Quote
Old 3rd May 2013, 05:52 PM   #18
frugal-phile(tm)
diyAudio Moderator
 
planet10's Avatar
 
Join Date: Oct 2001
Location: Victoria, BC, NA, Sol III
Blog Entries: 5
Click the image to open in full size. Click the image to open in full size.

dave
__________________
community sites t-linespeakers.org, frugal-horn.com, frugal-phile.com ........ commercial site planet10-HiFi
p10-hifi forum here at diyA
  Reply With Quote
Old 3rd May 2013, 07:47 PM   #19
diyAudio Member
 
Join Date: Apr 2013
Location: West Coast of Florida
Whoa! That's a lot of dots!

I have my work cut out for me
  Reply With Quote
Old 3rd May 2013, 09:59 PM   #20
chrisb is offline chrisb  Canada
diyAudio Member
 
Join Date: Aug 2002
Location: victoria BC
Quote:
Originally Posted by scaleautoart View Post
Whoa! That's a lot of dots!

I have my work cut out for me


If you've not already contacted Dave re the location of additional rings, you should probably do so .


Re Alpairs in the FH3 - a great combo - the 7s definitely benefit from being rebated for flush mounting in any enclosure. If you decide to accommodate that with a separate baffle, be sure to enlarge the opening on front panel to avoid restriction at rear of driver.
__________________
you don't really believe everything you think, do you?
community sites t-linespeakers.org, frugal-horn.com commercial site planet10-HiFi

Last edited by chrisb; 3rd May 2013 at 10:12 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
My Apollo project underway David Gatti Multi-Way 97 1st September 2012 01:27 PM
Newbie help - first build project underway. Steesh Construction Tips 1 7th December 2011 01:59 PM
BLH for the FE 206ES-R- Project Underway graykeene Full Range 19 5th July 2007 04:55 PM


New To Site? Need Help?

All times are GMT. The time now is 08:47 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