Industry Archives - Sound Forums

60 Degree DIY Mid Hi July 21, 2019
Hi Everyone, I have started work on the 60 degree version. Don has helped once again and provided some preliminary CAD drawings. A bit of work is still needed to simplify the construction and finalize the dimensions. The original DIY was a prototype designed to test the design and concept; this time I’m planning to […]
Ported Sub to Tapped Horn. Questions before starting July 21, 2019
Hi Everyone I am kind of new here and after having built few vented enclosures for bass / midbass drivers, I decided to go forward and build Tapped Horn types in order to get the best of my RCF LF15N401 with this plan : https://www.freespeakerplans.com/plans/14-plans/basscab/10-apache-h15 . But before-hand, I have few questions in mind : […]
18sound 15LW1401 BR Build (+ other questions) July 21, 2019
Hello, First please let me say, this is my first build. I did however spend A LOT of time reading online about various designs as well as checking out what was available second hand etc before continuing with this plan. I am starting a new build with the Eighteensound15LW1401 drivers. https://images.static-thomann.de/pics/atg/atgdata/document/specs/260997.pdf The final aim is […]
Compression Driver Horn Design July 21, 2019
Does anyone have pointers on where to start for foundational knowledge here? Also, what tools are available for the simulation of such devices? Only thing I really know I can look at is Acoustics by Beranek, which is fine, but the ultimate goal is to construct a CD type horn, and Acoustics doesn't really cover […]
Low Rumble feedback July 19, 2019
Hey everybody, Yesterday i did a big 4th of July Festival, during the event i along with the bands noticed a very annoying Low rumble feedback problem. My Subs were not being pushed to the max or anything, All of the low cut was on everything, all of the low end on just about every […]
Take out port to lower resonant frequency July 19, 2019
Hi ya guys I have four Wharfedale Delta 218B dual 18" subs and i've been using them for years and like them but they struggle with very low bass so I was thinking about taking out two ports in each driver chamber and then sealing up the ports and changing the drivers with RCF L18P400 […]

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