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Re: Why you need to lock your banana plugs?

Locking banana plugs typically use a knob driven screw to wedge the solid split banana fingers very tightly against the inside of the 5-way binding post, so tightly, that they are very difficult to remove, hence the "locking" designation.

WBT examples:
http://www.ramelectronics.net/html/speaker-con-wbt.html#644
http://www.thecablepro.com/cableDetail.php?cID=72&cgID=1

Monster example:
http://www.partsexpress.com/pe/showdetl.cfm?&Partnumber=185-190

Non Mainstream examples:
http://www.wholesaleaudioaccessories.com/page/WHOLESALEAUDIOACCESSORIES/PROD/premiumbananaplugs/locking-single-banana-plugs-16LBANM
http://www.htcustomcables.com/banana_plugs.htm
(third one down)

In my opinion, the use of regular spring loaded banana plugs is too iffy in terms of making a good low resistance contact. Some of the so-called premium spring loaded banana plugs have a fair amount of spring tension, and more than 4 fingers, these are what I consider marginal, but the run-of-the-mill banana plugs with just 4 wimpy fingers that get loose after a few insertions and removals, those are worse than bare wire (which ain't so great either).

My recommendation: if you can't use spade lugs with either a properly crimped connection (ordinary pliers do not a proper crimp make!) or a well done solder joint, then the next best option is a locking banana plug, as long as it can be locked so tight, that you can not remove it with normal finger strength.


Jon Risch


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