Go Back   Home > Forums > >
Home Forums Rules Articles diyAudio Store Blogs Gallery Wiki Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

New Markaudio Drivers
New Markaudio Drivers
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 July 2018, 09:22 PM   #1
orangeart is offline orangeart  United Kingdom
diyAudio Member
 
Join Date: Jul 2010
Default New Markaudio Drivers

Hello all,

As hinted at here and there, Mark has some new drivers on the horizon in the Alpair range.

18 months ago after we successfully released the Pluvia range of drivers, which have been well received, Mark set about the next design evolution. As some of you will know Mark's design ethos is mechanical efficiency, adding lightness and simplifying where possible. In these new drivers Mark has managed to achieve much more with much less.

One of the things that frustrated some of Mark's previous design efforts was the rear suspension being a pain in the ***. The necessity of it leading to design compromise. Freed from the necessity, drivers could be lighter, have tighter production tolerances and could be much more linear through the whole excursion range.

For these new drivers Mark has spent countless engineering hours trying to engineer out this need, not only did he find a solution but it helped him solve another long held desire - greater dispersion. For a long time now the drivers have used Aerospace grade alloys for stiffness, allowing shallower cone profiles. The multiform cone pressing process has allowed Mark to use complex cone profiles to enhance the stiffness further and increase dispersion. The new cones take this concept even further.

The removal of the spider means moving the centre of gravity of the whole drive train so that it can balance without the need for the spider at that centre. Removing the spider allows space for the magnet and the coil/former to move forward which helps, but the cone needed making shallower still. The answer to this answer also answered the question of increased dispersion as well, thus killing two birds with one stone. The new cone is negative camber, so not only is it very shallow but the outside edge actually comes back on itself.

The results of this new engineering leap are presented in the all new Alpair7 MS and big brother Alpair 11 MS where MS stands for Mono Suspension.

I've attached a teaser image here and over the next week or two we will get the PDF's uploaded for mass consumption and Scott will be working up some box designs as usual. the A11MS fits straight into a Frugal Horn XL acoustically although it is a little larger so modification will be needed. The 11 also does work in the Pensil 11 although the alignment isn't quite optimal, Scott is working on either a new design or a way we can all modify an existing cabinet, there will be other designs and obviously the A7MS will get the same treatment.

To start with these will be in VERY short supply but rest assured over time stock will increase and obviously the current drivers will still be available for some time to come as well.

Click the image to open in full size.
__________________
Surely building speakers could be easier...
www.kjfaudio.co.uk

Last edited by orangeart; 13th July 2018 at 09:09 AM.
  Reply With Quote
Old 12th July 2018, 09:25 PM   #2
chris661 is offline chris661  United Kingdom
diyAudio Member
 
chris661's Avatar
 
Join Date: Feb 2008
Location: Sheffield
Cool!

Do we have any word on pricing yet?

TIA,
Chris
  Reply With Quote
Old 12th July 2018, 09:29 PM   #3
wcwc is offline wcwc  United States
diyAudio Member
 
Join Date: Oct 2011
Are these meant to replace or supplement the existing Alpair 7 or 10?
  Reply With Quote
Old 12th July 2018, 09:49 PM   #4
orangeart is offline orangeart  United Kingdom
diyAudio Member
 
Join Date: Jul 2010
It's not quite as simple as that. The current line up will continue for a while but they are in the grandad stage of thier lifecycle so will eventually be pensioned off. They remain good drivers though and tommany people they are thier absolute favourite drivers.

Prices aren't quite fixed yet but they will be more expensive than the current driver's.
__________________
Surely building speakers could be easier...
www.kjfaudio.co.uk
  Reply With Quote
Old 13th July 2018, 01:17 AM   #5
Bigun is offline Bigun  Canada
diyAudio Member
 
Bigun's Avatar
 
Join Date: Jan 2009
Location: Waterloo, ON or Herefordshire UK
New Markaudio Drivers
hmmmmmm, I looked at the website for the first post. They sell the CHN-70 and call it "2 – Natural sound (near flat response)" - it's one of the more dissapointing sounding drivers I've ever purchased. There has been quite a bit of traffic on this forum about it. Not sure how it can be advertised as 'Natural sound'. I'll be looking for some independent evaluation of these new drivers before I'd risk jumping in.
__________________
"The test of the machine is the satisfaction it gives you. There isn't any other test. If the machine produces tranquility it's right. If it disturbs you it's wrong until either the machine or your mind is changed." Robert M Pirsig.
  Reply With Quote
Old 13th July 2018, 01:40 AM   #6
phivates is offline phivates  United States
diyAudio Member
 
Join Date: Jan 2011
Location: Willamette Valley
No spider...must be some majick keeping the coil aligned. Or are these rock speakers?
  Reply With Quote
Old 13th July 2018, 02:34 AM   #7
Bigun is offline Bigun  Canada
diyAudio Member
 
Bigun's Avatar
 
Join Date: Jan 2009
Location: Waterloo, ON or Herefordshire UK
New Markaudio Drivers
Quote:
Originally Posted by phivates View Post
No spider...must be some majick keeping the coil aligned. Or are these rock speakers?
It relies on the cone surround to centre the voice coil.
__________________
"The test of the machine is the satisfaction it gives you. There isn't any other test. If the machine produces tranquility it's right. If it disturbs you it's wrong until either the machine or your mind is changed." Robert M Pirsig.
  Reply With Quote
Old 13th July 2018, 02:54 AM   #8
freddi is offline freddi  United States
diyAudio Member
 
freddi's Avatar
 
Join Date: Aug 2005
New Markaudio Drivers
is there anything to align the voice coil in the motor's gap? - or does the surround take care of everything ? What's the cone diameter of the largest driver in this series?
  Reply With Quote
Old 13th July 2018, 03:23 AM   #9
planet10 is offline planet10  Canada
frugal-phile(tm)
diyAudio Moderator
 
planet10's Avatar
 
Join Date: Oct 2001
Location: Victoria, BC, NA, Sol III
New Markaudio Drivers
Quote:
… or does the surround take care of everything?
I believe this is the case. 1st practice is the Alpair 5.2, the 1st key figuring out how to get past ferrofluid being verbotten in Europe.

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 13th July 2018, 04:00 AM   #10
chrisb is offline chrisb
diyAudio Member
 
Join Date: Aug 2002
Location: victoria BC
Ever since first getting our hands on a pair of the 5.2s last year (or so?), we were very curious about how far that feature could be upscaled. Based on what we heard with the little guy, and provided durability under the higher work load can be maintained, these new MS drivers could be - and I hesitate to type the following - game changers ?

Freddi, following Mark’s typical model designation format, I’d say the largest cone - and perhaps frame size would be approx the same as Pluvia11.
__________________
you know I canít quit you, baby

Last edited by chrisb; 13th July 2018 at 04:03 AM.
  Reply With Quote

Reply


New Markaudio DriversHide 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

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Zigmahornet with Markaudio drivers? StevenZ Full Range 13 26th May 2011 06:09 PM
FS: pair of MarkAudio CHR-70 drivers albireo13 Swap Meet 5 30th November 2010 09:07 PM


New To Site? Need Help?

All times are GMT. The time now is 05:34 PM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 14.29%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Copyright ©1999-2018 diyAudio
Wiki