Alpair 10.2 "Castle" ? - diyAudio
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 12th March 2013, 01:42 AM   #1
diyAudio Member
 
cogitech's Avatar
 
Join Date: Jan 2011
Location: Kamloops, BC
Default Alpair 10.2 "Castle" ?

Scott, Dave, Chris, et. al.

The thought occurred to me, since I appreciate so much about my EL70 microTower "Castles" and I am completely blown away by my Pensil 10.2s...

Have any of you ever considered a "Castle" design for the Alpair 10.2?

It would be a large speaker, to be sure, but I can only imagine the dynamics and power!!! The extra upfiring driver would assist the A10.2 with dispersion as well...

If this has not occurred to any of you, then I suggest designing and naming it the "megaTower."

I volunteer to do an Alpha build!

Last edited by cogitech; 12th March 2013 at 01:44 AM.
  Reply With Quote
Old 12th March 2013, 05:57 AM   #2
frugal-phile(tm)
diyAudio Moderator
 
planet10's Avatar
 
Join Date: Oct 2001
Location: Victoria, BC, NA, Sol III
Blog Entries: 5
Twin Ma-Ken10.2 can be configured as a castle.

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 12th March 2013, 02:52 PM   #3
diyAudio Member
 
cogitech's Avatar
 
Join Date: Jan 2011
Location: Kamloops, BC
Hmmm.... Two Mar-Ken10.2, duct-taped together, balanced on a speaker stand.

Not sure what would be lower; stability or WAF.



But seriously, what physical arrangement do you have in mind?
  Reply With Quote
Old 12th March 2013, 05:03 PM   #4
chrisb is offline chrisb  Canada
diyAudio Member
 
Join Date: Aug 2002
Location: victoria BC
Quote:
Originally Posted by cogitech View Post
Hmmm.... Two Mar-Ken10.2, duct-taped together, balanced on a speaker stand.

Not sure what would be lower; stability or WAF.



But seriously, what physical arrangement do you have in mind?

The referenced enclosure is part of a paid plan-set for the Alpair 10.2 - two drivers mounted on face of approx 30L (?) typical MarKen style ( side mounted narrow slots, etc). Overall height of working enclosure is 730mm, which clearly need some type of short base, or void cavity (as seen on photo of FE167 version of several years back) . Second photo is veneered cabinet awaiting finish booth.

While these enclosures don't rely on 1/4 w/l action as do MLTLs, the length of port slots on the whole "Ken" series is a critical part of the tuning, and massaging CSA to maintain volume and increase height wouldn't be benign. It would require a complete recalculation, which doesn't follow conventional methods / modeling software.


Mount front facing driver centered approx 130mm from top, you should be able to squeeze the second one on the top.
Attached Images
File Type: jpg Fonken167 001.jpg (283.0 KB, 309 views)
File Type: jpg Fonken 167 001.jpg (283.7 KB, 301 views)
__________________
you don't really believe everything you think, do you?
community sites t-linespeakers.org, frugal-horn.com commercial site planet10-HiFi
  Reply With Quote
Old 12th March 2013, 05:40 PM   #5
wcwc is offline wcwc  United States
diyAudio Member
 
Join Date: Oct 2011
How deep are those, Chris?
  Reply With Quote
Old 12th March 2013, 07:04 PM   #6
chrisb is offline chrisb  Canada
diyAudio Member
 
Join Date: Aug 2002
Location: victoria BC
Quote:
Originally Posted by wcwc View Post
How deep are those, Chris?

Please note the photos are for an approx 4 year old design for the now discontinued FE167E - there is document with detailed plans and build photos available from Dave. While the overall topology will be the same for Alpair10.2, the dimensions will be different.

That said, the rough dimensions on the enclosures shown above are 299mm W x 286 mm D - my builds were 960mm H less the plinth seen below the reveal strip in photo below. After the first build, they all had input terminal cups mounted on bottom resulting in a clean back panel, and the lower voids were filled with glass blasting media; heavy MFs they turned out to be - my chiropractor loves it when I move them .

Click the image to open in full size.
__________________
you don't really believe everything you think, do you?
community sites t-linespeakers.org, frugal-horn.com commercial site planet10-HiFi
  Reply With Quote
Old 12th March 2013, 07:16 PM   #7
diyAudio Member
 
cogitech's Avatar
 
Join Date: Jan 2011
Location: Kamloops, BC
Thanks for the info, Chris.

At the risk of offending Dave (I really hope I don't) I have to be honest and say that the "Kens" have never really appealed to me visually. On top of that, they look considerably more difficult to build than many others.

My only conclusion is; they must sound amazing!
  Reply With Quote
Old 12th March 2013, 07:39 PM   #8
diyAudio Member
 
Join Date: Jun 2003
Location: Tennessee
You can start with single Alpair 10.2 MLTL designs. When doubled together you can attain a bipolar or a castle as you please. I've done several bipolar MLTLs with both drivers in the same volume and one design (offset arrangement) with a common shared panel between the two MLTLs.

MLTL designs are somewhat more forgiving/easier in tuning than other approaches.

Last edited by Jim Griffin; 12th March 2013 at 07:40 PM. Reason: addition
  Reply With Quote
Old 12th March 2013, 07:47 PM   #9
diyAudio Member
 
cogitech's Avatar
 
Join Date: Jan 2011
Location: Kamloops, BC
Quote:
Originally Posted by Jim Griffin View Post
You can start with single Alpair 10.2 MLTL designs. When doubled together you can attain a bipolar or a castle as you please. I've done several bipolar MLTLs with both drivers in the same volume and one design (offset arrangement) with a common shared panel between the two MLTLs.

MLTL designs are somewhat more forgiving/easier in tuning than other approaches.
That's an interesting perspective regarding volume flexibility, Jim.

This is really more of a brain-storming session for me than anything, but some day I might just get the urge to buy another pair of Alpair 10.2 and do some experimentation.
  Reply With Quote
Old 12th March 2013, 08:27 PM   #10
diyAudio Member
 
tuxedocivic's Avatar
 
Join Date: Jan 2011
Location: Ladysmith, BC
How is the alp10 for baffle step? Can it use a little help or is it pretty "full" already. My memory of it, is that it's pretty full sounding.
  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
3-way with big (10") woofer and monitor (6.5"+1") on top like "Tarkus" proxii Multi-Way 16 30th October 2012 12:43 PM
kinda ot... 10" x 10" x 10" aluminum block/bar, does such thing exist? Mickey Pass Labs 9 15th November 2011 08:22 PM
Wanted to Buy: Pairs of 5-1/2";6-1/2";8";10" Seas Aluminum Woofers dtm1962 Swap Meet 0 15th January 2010 04:38 PM
70cm tall, 3 way, diy speakers based on 10"/4"/1" japanese ken brown drivers. facundonu Multi-Way 34 9th March 2009 04:59 AM


New To Site? Need Help?

All times are GMT. The time now is 12:17 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