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Can anyone suggest where I might source threaded copper rod and copper nuts? Or, alternatively, binding posts with v-e-r-y long shafts (2.5 to 3 inches)?
I've built speaker cabinets with 1.75" (43 mm) thick panels. As a result, I can't find binding posts with long enough shafts (2.5-3 in.). (To preserve the structural integrity of the box, I don't want to make a cut-out in the back panel in order to install a binding post terminal.)
My idea is to make binding posts using 3/8 or 1/4 inch threaded copper rod with two (preferably) copper nuts on each end. On the inside the ring connectors from the crossover would be clamped between two nuts; on the outside, spade lugs or ring connectors from the power amp would be clamped in the same way.
TIA,
Joel.
Of
Follow Ups:
Gentlemen, many thanks for your numerous helpful--and frequently ingenious--suggestions.
And a special thanks to "acas" for pointing out that WBT makes "extension bolts" (part no. WBT-0715). The three WBT retailers I had queried didn't know about this. The U.S. distributor himself claimed he'd only ordered these from Germany once in 8 years!
Since I have four unused WBT binding posts just lying around, the extension bolt solution is the easy way out for me. The order has been placed...
Thanks again, guys.
Joel.
Since the post is secured to the cabinet by a single center mounting screw, pretty much any length is possible. You may have to go to a fastener shop and pick up the proper length allen screw, but it can be made to work.I use these posts on my amps and speakers...love them!
Only down side is bananas won't work on them.
Edit: They didn't have the speaker mounting plate available when I installed some on my Thiels, but I used an electrical cover plate, which accomplished the same thing. The new plate looks like a great idea, then you can go with the shorter stock length screws.
- http://www.cardas.com/content.php?area=oem&content_id=10&pagestring=Patented+Binding+Posts (Open in New Window)
Edits: 11/04/08
If you go with the Patented posts, get some of these Audioquest spade connectors. They fit perfectly on the post connectors and won't slip out once the tightening bar is installed.Music Direct also has the posts:
http://www.musicdirect.com/product/73175
Edits: 11/04/08
WBT make an extension for there binding posts. Part # wbt-0715
When you open a post you authored, you should see Edit and Delete links below it. You can only delete posts which have no replies (which is why I'm replying to this and nnot your other post), but you can edit any posts you authored.
-Pete
How do I ammend a posting? Can someone change there for their in my last posting?
Image: Parts Express surface-mount binding posts (part number 260-302)
This humble product only requires two small wood screws to mount it on the surface of an enclosure -- the only protrusions on the back of the mounting plate are two small tabs -- each tab only require a 1/4" hole or so drilled through the enclosure panel to connect the loudspeakers internal wiring. The sonic performance level of this particular binding post product is not unlike a typical stock binding post (gold plated brass) -- if you are interested in a quirky $20+ mod that implements (with a bit of finesse) copper contacts for a higher performance level, let me know.
You probably won't find threaded copper, but tellurium copper alloy is a possibility because it's machinable. Edison-Price and Eichmann use the stuff.
Copper is soft, so isn't typically used for hardware, except washers.
Bass is supposed to sound big. 6.5" is not a woofer size.
Please note my dual status as reviewer and manufacturer. Take EVERYTHING I say with a grain of salt.
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