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Old 8th November 2012, 08:59 PM   #1
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Default What Binding posts to get?

Looking at finishing up my 2X FE127Es
Currently I have the cable routed through the port! dodgy, I reckon it's time I put some binding posts.

I'm not too keen on making a huge hole for one of the flush mount plastic binding pots. I'm also unsure how that would affect the sound.

Are there any binding posts that just require 1 hole per post? I've seen some of these but they appear not to be long enough to be able to mount them through the wood panel and secure them with a bolt.

Any ideas?
Anyone seen any on ebay? should I get on with it and cust a big hole for the plastic flush mount posts?
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Old 8th November 2012, 09:04 PM   #2
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I've used these:
Dayton Audio BPA-38G HD Binding Post Pair Gold 091-1245

But switched to these:
Gold Plated Banana 5-Way Speaker Terminal 260-302

Don't know what may be available in your neck of the woods though.

Cheers, Jim
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Old 8th November 2012, 09:28 PM   #3
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+1 on the 091-1245's. I suspect that arguing the merits of terminals is like arguing the merits of speaker cabels.

Bob
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Old 9th November 2012, 01:31 AM   #4
Pallas is offline Pallas  Pakistan
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Neutrik speakons. They're the only ones that are positive locking, quick-disconnect, impossible to short, and impossible to connect in the opposite polarity.

They're cheap, too.
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Old 9th November 2012, 02:18 AM   #5
Bare is offline Bare  Canada
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Geez.. Buy a pair of Copper Bolts of medium to small size or whatever seems appropriate to use. A few Cents each at a Boat supply shop.
Drill your holes then insert the rascals. IF worried about leakage fit a plastic tube sleeve bit where they pass thru the enclosure.
Then you can Bolt your speaker wires onto these OR if after the best possible connection and willing to endure the minor inconvenience of a solid connection... simply Solder the wires on.
Nawww..wayyy too simple and direct a solution.
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Old 9th November 2012, 05:58 AM   #6
chrisb is offline chrisb  Canada
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of course one could suggest - "funk it, bro" and directly hardwiring the entire system - sure it'd "sound better" than any mechanical connector yet designed, but kinda impractical

Bob is right - sooner or later you just gotta decide what suits your own needs / budget - if you're crazy like some folks I know and build a whole lotta speakers and need to accommodate for quick / easy changes, then cheap binding post and banana plugs are fine

there are so many more important things to worry about in life that the bandwidth wasted discussing such minutia is almost criminal
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Old 9th November 2012, 06:42 AM   #7
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If your using the 091-1245's find a drill bit that gives a tight fit and use a small o-ring on the inside to seal up nicely once the bolt/nut has been tensioned.
Never had a drama yet.
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Old 9th November 2012, 07:18 AM   #8
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Chris & i went thru a lot of angst, and trials, and tried lots of different posts. We wanted to avoid plastic cups, but in the end (3 years later) it proved to not be practical, so we buy 2" plastic cups with the cheap cheesy looking plastic nutted posts by the 100s).

The big heavy posts that are listed 1st in Jim's post don't actually sound as good as the cheaper ones he posted 2nd.

Click the image to open in full size.

These also have the advantage of being able to attach wires to them outside the box (just try to get a soldering iron and a hand thru a 3 or 4" driver cutout even without a holey brace in your way).

An additional requirement we had is that the post snot stand proud of the box (we are pretty sure many of our customers are as clumsy as me), so we ended up with the same posts as above but mounted in a cup that requires a 2" circular hole (as small as they go, and much easier to machine than a rectangular hole)

We found that the cheap cheesy looking plastic nutted posts sound better than many that cost more (the big solid copper Cardas are one expensive example), and that to do significantly better we'd have to jump to Eichmann cable pods.

If you don't have to change out speakers alot, then if you run the wires out of the speaker and use the posts to clamp bared internal wire to bared speaker cable, it is the best way to use any 5-way post.

Also fon't be tempted to use big heavy wire without confirming to yourself that it works best. We use a pair of strands out of solid core CAT5 ethernet cable (high quality and cheap because we are riding on the backs of billions of miles made for the IT industry). I believe that Bob has said he uses the same for his speakers)

dave
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Old 9th November 2012, 07:46 AM   #9
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That's very similar to the ones i just used, very easy to solder i must say. Makes the whole process much easier if you make a small spacer for them to screw to that has the inside machined to house the wire once you screw it to the back of the box.
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Old 9th November 2012, 11:19 AM   #10
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Quote:
Originally Posted by aussiebox View Post
If your using the 091-1245's find a drill bit that gives a tight fit and use a small o-ring on the inside to seal up nicely once the bolt/nut has been tensioned.
Never had a drama yet.
No. Well, maybe. If you drill a 1/4" hole, the stem will pass through the box and the knurled shoulder is a press fit and has to be sent home with a hammer.

The stem is actually M6. Not having metric drills, I suspect that the shoulder will not press fit in a 6mm hole. I don't know if the press fit will be tight enough in a 7mm hole. In any case, as long as the outside of the box is smooth and the hole is square, I can't see that there would be any air leakage once you reef up of the nuts.

Bob
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