Markaudio CHS-70A Extended Full Range audio driver - diyAudio
Go Back   Home > Forums > Commercial Sector > Manufacturers > Twin Audio
Home Forums Rules Articles diyAudio Store Gallery Wiki Blogs Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Twin Audio Twin Audio is a manufacturer of hand made audiophile tube amplifiers.

Reply
 
Thread Tools Search this Thread
Old 6th October 2015, 05:30 PM   #1
diyAudio Member
 
Musik007's Avatar
 
Join Date: Nov 2009
Default Markaudio CHS-70A Extended Full Range audio driver

The CHS-70A driver is a new type of small driver from MarkAudio. While its mechanically similar to the CHR-70 series drivers, its major design features are more advanced.

The main feature of the CHS-70A is its new low-mass thin profile glass-fibre injected chassis (frame). This chassis design has taken 2 years of research and development to produce a highly damped strong frame that makes installation easy. The CHS-70A can be either surface mounted or recessed into a loudspeaker box. The chassis mounting depth is only 3.5mm making it easy fit for either type of installation. The chassis appearance is
high quality, with a professional industry finish that makes the CHS-70A look expensive while it remains affordable.

The CHS-70A features a new shape cap and revised suspensions giving it a wide range with controlled mid response to help reduce “shout”, typical of many small wide band drivers. Vocals on the CHS-70A are clear and natural. Baffle Step Compensation (BSC) is enhanced on the new suspension layout, making this driver more effective in combating box losses in the low range. Other new features include longer gold plated connectors for easier soldering or using clamp type connectors.

The new CHS-70A is an excellent high-end and multi-purpose driver. Its also suitable for many computer, Home Theatre, TV, and commercial A/V applications.

4 colors of cone for option:
Champagne Gold
Dark Gold
Silver
Metal Grey

Spec of CHS-70A:
Revc= 7.200 Ohm
Fo= 67.863 Hz
Sd= 50.270 cm²
Vas= 5.543 Ltr
Cms= 1.545m M/N
Mmd= 3.356m Kg
Mms= 3.561 g
BL= 3.968 TM
Qms= 2.391
Qes= 0.695
Qts= 0.538
Levc= 35.057u H
No= 0.241 %
SPLo= 85.843 dB
Pwr= 22 watts Nom
X max= 4mm 1 way

Price: US$78/pair + shipping cost
Attached Images
File Type: jpg CHS70-3.jpg (44.4 KB, 528 views)
File Type: jpg CHS70-4.jpg (38.6 KB, 517 views)
File Type: jpg CHS70-5.jpg (44.9 KB, 516 views)
File Type: jpg CHS70-2.jpg (41.4 KB, 512 views)
File Type: jpg CHS70-6.jpg (39.0 KB, 506 views)
File Type: jpg CHS70-7.jpg (48.3 KB, 89 views)
File Type: jpg CHS-70.jpg (40.8 KB, 102 views)
File Type: jpg CHS70-8.jpg (57.3 KB, 135 views)
File Type: jpg CHS70-9.jpg (58.8 KB, 105 views)
  Reply With Quote
Old 2nd November 2015, 03:29 PM   #2
diyAudio Member
 
Musik007's Avatar
 
Join Date: Nov 2009
Pluvia Seven in Japan:
http://www.fidelitatem-sound.com/Plu...ia%20Seven.pdf
  Reply With Quote
Old 9th November 2015, 04:53 AM   #3
leepwj is offline leepwj  Singapore
diyAudio Member
 
Join Date: Oct 2012
Hi Tony any recommendation enclosure for this drivers.
  Reply With Quote
Old 11th November 2015, 04:17 PM   #4
diyAudio Member
 
Musik007's Avatar
 
Join Date: Nov 2009
Hello,
Can try the enclosure for CHR-70.3. Thanks.

Quote:
Originally Posted by leepwj View Post
Hi Tony any recommendation enclosure for this drivers.
  Reply With Quote
Old 10th December 2015, 09:41 PM   #5
diyAudio Member
 
Join Date: Sep 2010
Location: London - South East
Why are there two different designs to the cone? Two have a indent in the center and the other 2 do not. Curious to what difference this makes on the off axis results at high frequencies
  Reply With Quote
Old 10th December 2015, 11:14 PM   #6
Bigun is offline Bigun  Canada
diyAudio Member
 
Bigun's Avatar
 
Join Date: Jan 2009
Location: Waterloo, ON or Herefordshire
Blog Entries: 2
How did I miss this - looks interesting :-)
__________________
"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 18th December 2015, 08:30 PM   #7
chrisb is offline chrisb  Canada
diyAudio Member
 
Join Date: Aug 2002
Location: victoria BC
Quote:
Originally Posted by Spike415 View Post
Why are there two different designs to the cone? Two have a indent in the center and the other 2 do not. Curious to what difference this makes on the off axis results at high frequencies

both good questions
__________________
... so, not as easy at it sounds, this letting go thing
  Reply With Quote
Old 12th June 2016, 03:10 PM   #8
Bigun is offline Bigun  Canada
diyAudio Member
 
Bigun's Avatar
 
Join Date: Jan 2009
Location: Waterloo, ON or Herefordshire
Blog Entries: 2
Any new information, impressions on this driver, anybody used it to replace an EL-70 for example ???
__________________
"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 12th June 2016, 07:22 PM   #9
frugal-phile(tm)
diyAudio Moderator
 
planet10's Avatar
 
Join Date: Oct 2001
Location: Victoria, BC, NA, Sol III
Blog Entries: 5
We used it in place of a CHR in a dCHR-Ken70. Works fine. I am going to take the 4 we have and try them the empty Thirlmere-R we have and hopefully use them as helper woofers.

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

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
Markaudio New Full Range Driver Alpair 5 Gen.2 Musik007 Twin Audio 28 24th January 2016 12:27 AM
Critical measurements Metronome for Markaudio CHP-70A speakers bsmith Full Range 13 5th August 2014 08:32 PM
Contemplating a budget MTM project using full/extended range speakers goldorak Full Range 17 27th February 2014 05:40 PM
full range driver for car audio? doors666 Full Range 5 29th September 2011 06:11 PM
H-Audio XR3M full range driver Bill poster Full Range 0 6th December 2010 07:32 PM


New To Site? Need Help?

All times are GMT. The time now is 01:56 PM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright ©1999-2017 diyAudio

Content Relevant URLs by vBSEO 3.3.2
Wiki