Mark Audio CHR-70 Application Thread - Page 82 - 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 6th July 2012, 06:26 PM   #811
zman01 is online now zman01  Bangladesh
diyAudio Member
 
Join Date: Feb 2011
Location: Dhaka
sk971,

If you get the new drivers, then the new box will be better.

A very compact shallow design for the CHR-70 is the "Half Towers" - roughly 7.5" x 30" x 5.5" IIRC. Pretty nice for their size.

Noticed BPA has the previous gen Alp 7 on sale:

Markaudio Alpair 7 Gray - Lautsprecherbau von blue planet acoustic

This is probably the save rev driver as ChrisB's. Sorry, couldn't help suggesting, though this is a CHR application thread.
  Reply With Quote
Old 6th July 2012, 11:51 PM   #812
sk971 is offline sk971  United Kingdom
diyAudio Member
 
Join Date: Jul 2012
Thanks for your thoughts gentlemen, a rethink is in order, most likely going to have a go with the old model Alpair 7s which are just in budget, with the Pensil 7 enclosures and hope that my kit can do them justice.
Cheers Simon
  Reply With Quote
Old 7th July 2012, 02:24 AM   #813
frugal-phile(tm)
diyAudio Moderator
 
planet10's Avatar
 
Join Date: Oct 2001
Location: Victoria, BC, NA, Sol III
Blog Entries: 5
Alpair 7 is no hardship

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 7th July 2012, 06:27 AM   #814
zman01 is online now zman01  Bangladesh
diyAudio Member
 
Join Date: Feb 2011
Location: Dhaka
Quote:
Originally Posted by planet10 View Post
Alpair 7 is no hardship

dave


Simon, look forward to hearing from you when you start your build.
  Reply With Quote
Old 7th July 2012, 06:21 PM   #815
chrisb is offline chrisb  Canada
diyAudio Member
 
Join Date: Aug 2002
Location: victoria BC
Quote:
Originally Posted by planet10 View Post
Alpair 7 is no hardship

dave
Pensils with 7.2 have been my "daily driver" for probably a year now - as Dave says, no hardship
__________________
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 30th December 2012, 05:31 PM   #816
OOD34 is offline OOD34  Netherlands
diyAudio Member
 
Join Date: Nov 2010
Default Folded halfTower ML-TL: 3 dB extra at 32-64 Hz

Hi all,

During Christmas, I made the Folded half Tower ML-TL (free design of planet10) for the CHR-70. I really like the sound.
As from drawing, see below (I made it unintended 3 cm less deep)

I was just curious, what would happen, if I added some extra deflectors inside. To my surprise, the bass get better, deeper and more solid. How it works, I do not know. Just to share.


Regards,

Olaf

PS. is my first project, so I am still on the learning, any feedback, remarks is welcome
Attached Images
File Type: jpg foto.JPG (105.2 KB, 525 views)
File Type: jpg ML-TL with deflectors.JPG (79.2 KB, 518 views)
  Reply With Quote
Old 30th December 2012, 06:31 PM   #817
diyAudio Member
 
KyleinCowichan's Avatar
 
Join Date: Dec 2010
Location: Cowichan Bay, BC
Well done! Perhaps Dave can comment on how those deflectors have had that effect. They definitely cut into the volume of the enclosure.

Kyle
  Reply With Quote
Old 23rd January 2013, 08:33 AM   #818
SirByrd is offline SirByrd  United States
diyAudio Member
 
SirByrd's Avatar
 
Join Date: Dec 2010
Location: Seattle, WA
Click the image to open in full size.
Built these prototypes, ~14 liters, tuned to ~47Hz with a 1"x1" port, F3 of 40 Hz.
Final versions will be out of bamboo plywood.
  Reply With Quote
Old 23rd January 2013, 01:00 PM   #819
diyAudio Member
 
Join Date: Aug 2009
Location: North Texas, USA
Would seem that the increased stuffing likely had the most effect, woudln't you say?

Quote:
Originally Posted by KyleinCowichan View Post
Well done! Perhaps Dave can comment on how those deflectors have had that effect. They definitely cut into the volume of the enclosure.

Kyle
__________________
I was so much older then, I'm younger than that now.
  Reply With Quote
Old 3rd February 2013, 06:27 PM   #820
MosMike is offline MosMike  Russian Federation
diyAudio Member
 
Join Date: Jan 2013
Hello! I have ordered a pair of CHR-70.3 and I plan to use them as computer desktop speakers. As I see the majority of desktop speakers are deep and narrow boxes. But I need a wide shallow cabinet. I found this plan for a 12L BR cabinet: www.markaudio.com/Plans/item/download/60_20ae98d8b2b2e15c02ec6057d7439d2a How will it sound be compared to a traditional deep&narrow cabinet? Is it possible to improve the bass response by making it a 14L cabinet?

Last edited by Mooly; 3rd February 2013 at 06:37 PM. Reason: Merged
  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
need great smd cap for audio application jsaggio Parts 1 11th September 2007 03:41 AM
CV4014 and 5650 - any audio application of these tubes? cm Tubes / Valves 0 18th January 2007 12:03 PM
Additional application for audio amps... ashok Everything Else 8 17th August 2005 08:20 AM


New To Site? Need Help?

All times are GMT. The time now is 06:17 AM.


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