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Old 5th December 2012, 04:13 AM   #1
diyAudio Member
Join Date: Aug 2011
Post Need advice on conceptional ideas using multiple Mark Audio CHR-70's

Hello all,
I am wanting more information an a few conceptional designs using 4 Mark Audio CHR-70's in a close grouped array.

My overall goal is to use the 4 CHR070's as the tweeter and midrange. Then depending on the layout of the 4 CHR70's using ether a MCM 12'' Die Cast Professional Woofer - 350W RMS (MCM Part #: 55-2982) or a Visaton 9035 W250S 10" Woofer with Treated Paper Cone 8 Ohm.

Using 4 CHR-70's will bring my SPL 1w/1m to 93-94. Please let me know how you (The DIY Audio Group Members) think of this layout. Can one of the two CHR-70 configurations be used as a tweeter and midrange without sounding muddy?

Again this is a conceptional idea, the given cabinet layouts are not final and do not contain any bracing or are at the correct needed volume.

Thanks for the help, I am just letting my mind run with different ideas. BTW, I got this idea from the Monicar Raduno, Standbox Strassacker, Komponenten: Lautsprecher, Frequenzweichen, Bauelemente

Attached Images
File Type: png Alpair Chr70 Array Close.png (195.8 KB, 79 views)
File Type: jpg raduno.jpg (9.3 KB, 76 views)
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Old 5th December 2012, 06:18 AM   #2
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Join Date: Sep 2009
Location: Gulfport fl.
Yes, sure these could work if angled for a focal point at a distance.
The second picture looks like six drivers around a tweeter, you would not need a focal point with that one.
The second picture has been done before. It was at an audio show if I remember correctly.
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Old 5th December 2012, 08:00 AM   #3
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Originally Posted by golgiapparatus View Post
Using 4 CHR-70's will bring my SPL 1w/1m to 93-94.
Factory spec is 85.4 so 4 in close proximity would give 91.4 dB,

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