Tuesday, August 24, 2010

Back in the saddle

I have time to post, unbelievable.  

I've had a project on the burner for quite a while.  BFM cabs are astounding performers,  requiring time and skill to execute well.  There's some folks out there who just will not or cannot do horn loaded cabs.  For whatever reason, I'm not getting into that debate.  So after some discussions with Eminence, they gave me approval to design cabinets based on Jerry McNutt's design parameters posted on the Eminence website. 

I started with the 18's. Everybody seems to love 18" subwoofers.  My personal preference is 15"s, but hey, the market is never wrong, right?  I screwed around with sizes for a very long time, looking for ergonomics and consistency across the cabs.  I engaged my brother who's also a woodworker and he did the same.  Between the two of us we came up with some basic design criteria, then he built the first prototype.  From that one I built 5 different cab sizes that will accommodate  every 18" woofer Eminence builds.  I spent 5 days living with my Dad, and it just so happens the shop is at his house.  Cut some wood, check on Dad, cut some more wood, check on Dad.  But it was really enjoyable to just get buried in the process, and hang around with Dad. 

Interchangeable ports for differing tube lengths, internal baffles to change volume as needed, commonality across the designs to make production easier.  Here's a couple of horrible cell phone pics showing the 4, 5, 7, and 9 cu ft boxes.




Testing begins in earnest pretty soon.  Although it's probably unnecessary, Jerry is the chief speaker designer for Eminence, he knows what the hell he's doing.  An added bonus is all of these also work for the 15's. 

They'll be available in 2 ways.  Plans with measured drawings and all the parts, and as flat pack precut kits.  I literally can assemble one from the flat pack in 5 minutes with a brad nailer. I bet with a screw gun it wouldn't take more than 15 minutes. Custom bent grilles will be available.  Dado's and rabbet construction make assembly like a tinkertoy.  I spent a lot of time thinking about the avg guy with a minimal amount of tools assembling these.  There will be a video for construction posted up before too long. 

After perusing the sub world out there, most of the under $500 stuff is particle board, mdf, or some similar crap wood.  With who knows what kind of driver.  These are auraco, my first time with it and I like it very much.  It will be a quality sub that anybody can build, and pick their price point by choosing whatever driver suits their fancy. 

Will it be equal of a titan or a tuba?  Probably not, but it will be a good box that should compete with any direct radiator out there. 

2 comments:

  1. let me know when you decide on price points, leland. i have wanted a double 15" sub for a "b" rig for years.

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  2. I can't seem to get any time free to finish this. Every available day has been taken up with going somewhere I HAVE to go. Maybe this weekend. By the end of the month come hell or high water.

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