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Old 2nd December 2010, 11:06 PM   #1
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Default CHR70x example projects (lots of pictures, not much text)

April 4 Edit: Was "December/Holiday Sales Special / CHR70.2eN", but that is lomg gone. Some good content thou, so i'll rename the thread.

CHR70.2eN in silver (aka grey) or champagne (aka gold)

Click the image to open in full size.

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Old 5th December 2010, 06:52 AM   #2
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CHR-Ken

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A set of "green" CHR-Ken playing at 7th annual VI diyFEST,

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Some comments (most of these are in the CHR-70 applications thread -- a ton of designs for CHR): Nanook (and more comments in the next couple pages), TheSeeker (& here), speakrsrfun (& here ... CHR-Ken is 9 litres), Doorman

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Old 6th December 2010, 08:06 AM   #3
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A list of some applications. Already mentioned Mark Audio CHR-70 Application Thread

CHR-Ken (dMar-Ken70)
Lotus, double horn loaded reflex (single & double driver versions)
Maeshowe, rear mouth horn
PensilR70, damped coupler
mMarS
microTowers, small ML-TL, in single, double, and single-folded versions
HT appendix to the microTowers with sealed enclosures to flesh out a Home Theatre
Wessex, medium ML-TL for 2 drivers
Mercia, large ML-TL for 2 drivers
Frugel-Horn Mk3
A variety of small bass reflexes

Construction Plans List | Markaudio
P10-hifi Mark Audio Box Plan Library
Woden Design

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Old 7th December 2010, 07:47 AM   #4
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Default Some pictures of member's CHR70 builds

CHR in 7 litre slot loaded cabinet (FR125 box)
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Triffid
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Henkjan miniMonitors
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Steve's Lotus^2 (more comments, Ian444 build)
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Harebrained Double Reflex
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tresch's Bass Reflex
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planet10 microTowers
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Voldemar1 DBR (plans)
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Toretta TQWT
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joern's 8L BR
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preiter 5.5L sealed
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tresch sealed
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Steve's folded halfTower
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pytha2008 Black Beauty
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Alan's Meashowe (more comments)
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Old 7th December 2010, 12:46 PM   #5
Tea-Bag is offline Tea-Bag  United States
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Dave, love the pics of course, I assume the top one is your pad. An army of speakers.

Can you comment on the CHR-70 'house sound' compared to the other Mark Audio drivers? Do they sound similar, or totally different?

This is quite a great price for an enabled pair of drivers BTW.
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Old 7th December 2010, 02:48 PM   #6
doorman is offline doorman  Canada
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Quote:
Originally Posted by Tea-Bag View Post
Dave, love the pics of course, I assume the top one is your pad. An army of speakers.

Can you comment on the CHR-70 'house sound' compared to the other Mark Audio drivers? Do they sound similar, or totally different?

This is quite a great price for an enabled pair of drivers BTW.
I can't comment on the sounds of it's stablemates, but for the price of the eNA chr-70's, I'd grab a pair while I could!
Best, Don

Last edited by doorman; 7th December 2010 at 02:54 PM.
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Old 7th December 2010, 08:30 PM   #7
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Quote:
Originally Posted by Tea-Bag View Post
Can you comment on the CHR-70 'house sound' compared to the other Mark Audio drivers? Do they sound similar, or totally different?
CHR70 sonics are clearly of the same family as the other metal cone drivers. Not quite as refined or finessed, but with better bass cpabilities and more robust (the pluses & minuses are mirrors of the choices that were made to keep the price down).

The paper cone drivers (EL70, and a prototype A6p), are further away but still of the same family.

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Old 10th December 2010, 02:28 AM   #8
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CHR70 also works in Frugel-Horn Mk3 (seem here with removable baffle and Alpair7)

Click the image to open in full size.

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Old 2nd August 2011, 06:49 PM   #9
clk230 is offline clk230  United Kingdom
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would these drivers work in the curvy changs ,i love the look of the changs if not i'll build the lotus(1 driver).
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Old 2nd August 2011, 07:05 PM   #10
chrisb is offline chrisb  Canada
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would these drivers work in the curvy changs ,i love the look of the changs if not i'll build the lotus(1 driver).


IINM, the original Spawn designs predated our introduction to the earliest of Mark's drivers, and the Chang family ranged from Suzy ( FE103E ) to full-on G Chang and Curvy sibling ( FE207E). Of the enclosure sizes in this series I'd imagine that the Brynn or Gabriel might be most suitable for CHR / CHP70 etc. I've built a couple of pairs of the little single mouth Brynn ( FE127E), and they are an easy build and certainly work, but not without limitations.

Scott can correct me on this, but the above said, there are several more recent full size double mouthed designs that are more precisely tailored to the Mark Audio series of drivers, and of the 2 that I've heard, the Maeshowe would be my suggestion for CHR70. With appropriate adjustment for driver chamber volume, it certainly wails with Fostex FE126E. I haven't heard the Lotus - which I guess you're considering it due to room considerations (front mouth or large BVR termini(?) certainly offer some placement advantages)
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