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Old 6th October 2015, 04:30 PM   #1
Musik007 is offline Musik007  Hong Kong
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Markaudio CHS-70A Extended Full Range audio driver
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, 584 views)
File Type: jpg CHS70-4.jpg (38.6 KB, 573 views)
File Type: jpg CHS70-5.jpg (44.9 KB, 572 views)
File Type: jpg CHS70-2.jpg (41.4 KB, 568 views)
File Type: jpg CHS70-6.jpg (39.0 KB, 562 views)
File Type: jpg CHS70-7.jpg (48.3 KB, 93 views)
File Type: jpg CHS-70.jpg (40.8 KB, 108 views)
File Type: jpg CHS70-8.jpg (57.3 KB, 145 views)
File Type: jpg CHS70-9.jpg (58.8 KB, 114 views)
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Old 2nd November 2015, 02:29 PM   #2
Musik007 is offline Musik007  Hong Kong
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Markaudio CHS-70A Extended Full Range audio driver
Pluvia Seven in Japan:
http://www.fidelitatem-sound.com/Plu...ia%20Seven.pdf
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Old 9th November 2015, 03:53 AM   #3
leepwj is offline leepwj  Singapore
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Hi Tony any recommendation enclosure for this drivers.
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Old 11th November 2015, 03:17 PM   #4
Musik007 is offline Musik007  Hong Kong
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Markaudio CHS-70A Extended Full Range audio driver
Hello,
Can try the enclosure for CHR-70.3. Thanks.

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Originally Posted by leepwj View Post
Hi Tony any recommendation enclosure for this drivers.
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Old 10th December 2015, 08:41 PM   #5
Spike415 is offline Spike415  United Kingdom
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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
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Old 10th December 2015, 10:14 PM   #6
Bigun is offline Bigun  Canada
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Markaudio CHS-70A Extended Full Range audio driver
How did I miss this - looks interesting :-)
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Old 18th December 2015, 07:30 PM   #7
chrisb is offline chrisb
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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
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Old 12th June 2016, 02:10 PM   #8
Bigun is offline Bigun  Canada
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Markaudio CHS-70A Extended Full Range audio driver
Any new information, impressions on this driver, anybody used it to replace an EL-70 for example ???
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Old 12th June 2016, 06:22 PM   #9
planet10 is offline planet10  Canada
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Markaudio CHS-70A Extended Full Range audio driver
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.

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