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DIY Walsh driver revisited
DIY Walsh driver revisited
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Old 30th July 2018, 02:59 AM   #1031
cochleus is offline cochleus  United States
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Join Date: Oct 2009
Location: S.E. Michigan
Greetings Jer
Haven't done much lately, no time
Thanks for the pong-a-thon

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Old 30th August 2018, 08:52 PM   #1032
Sandasnickaren is offline Sandasnickaren  Sweden
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Join Date: Feb 2015
Location: Stockholm
Default Small update on my Walsh project

Iím back.
Itís been a while since my previous contribution. Iíve done some development of my walsh speaker. There are two versions in the picture, the large ugly one that includes two twelve inch woofers and the latest which is the slim one.
Couple of comments on the slim version.
The driver is the same design as in the earlier version (you will find more details in my earlier post).
The big change is in the construction of the whole speaker. The box is a tapered horn more or less as per B&W nautilus design. The advantage is less or no box colouration of the sound.
The slim design also minimizes diffraction, which used to be horrible in the earlier versions. There is still some diffraction from the magnet.
The whole speaker i assembled on a 20mm stainless steel rod from the feet to the top through the magnet (you canít see it itís inside except for the nut thats on the top).
The rubber surround is mounted inside the cone.
Iíve included one rough measurement to give you some ide on the level of performance.

It sounds pretty good!

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