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Multi-Way Conventional loudspeakers with crossovers

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Old 16th April 2014, 04:00 AM   #1
diyAudio Member
Join Date: Aug 2008
Location: Sydney
Default Pics new 4-way Azura horn system, plus BIG bass horn

Having built numerous projects including Tannoy GRF, Carfrae Little Big Horn, numerous Lowthers, GOTO, Altec and Klipsch...I'm now embarking on a radical new 4 way system, featuring:

Azura 340Hz horn and JBL 2445 drivers (with large 2 inch throat)

Eminence Lab12's 12-inch subs (2), with rear facing baffles for corner loading

Large new mid-bass horn taken from Martin Sneddon's design, plus tweaked...will be 1.5m tall, with mouth of 85cm x 85cm, and geature Altec 515 15-inch woofers.

Tweeter TBA, likely Azura 1,000Hz and suitable 1-inch compression driver.

Dual MiniDSP's to run the xovers.

Holton Precision Audio six channel power amp.

The Azura 340's are sounding very nice indeed....and I'm 70% through the build of the mid bass horns. The Lab12 subs are completed, and recently painted in mid gloss white to match the horns.

The mid bass horn upright tower section will be white, while the mouth is in Birch Ply, and I will leave natural colour.

xover points are:

Subs 20-90Hz
Mid bass 90-450Hz
Azura 340 horn 450Hz to 5,000Hz
Tweeter, 5k+

A really fun project...but a lot hinges on the mid bass horn for the true magic.

Attached Images
File Type: jpg 340.jpg (86.5 KB, 102 views)
File Type: png horn inside 3.png (500.3 KB, 103 views)
File Type: jpg mouth bass horn.jpg (108.2 KB, 100 views)
File Type: png sim.png (120.3 KB, 96 views)
File Type: png bass horn drawing.png (312.4 KB, 98 views)
File Type: jpg DSC_0303.JPG (187.3 KB, 48 views)
File Type: png painted cabs.png (493.9 KB, 42 views)
File Type: jpg ports in.jpg (95.7 KB, 45 views)
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Old 16th April 2014, 04:01 AM   #2
diyAudio Member
Join Date: Aug 2008
Location: Sydney
Note - on mid bass horn drawing, it shows mouth as 85cm x 70cm...that is incorrect...it will be 85cm x 85cm.
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Old 16th April 2014, 07:56 AM   #3
diyAudio Member
Join Date: Oct 2005
Man, that is some serious speaker-porn!
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