Quote:
|
Originally Posted by ja2935
Another point to notice about the connector on the right is that the shielding is broken so that the core conductor is effectively unshielded for the last few millimeters. The one on the left has the metal outer casing extending the shielding back past the solder joint. If three connectors like those on the right were connected close together, as in most jack panels, they would possibly interfere with each other as well as being susceptable to external EMI (Electro-Magnetic Interference). By the way, crimped connectors are better as no thermal stressing is introduced and a consistent joint is assured.
|
while the picture on the right is cheap rca and a bad example, high end studios cut the ground wire off just short of the terminating plug. pin 3=cold, pin2=hot, pin 1 is left cut off. the reason for this is to avoid ground loops in an installation which may have thousands of connections in a small area. since AC (power supply) is a critical factor in equipment performance, every piece of gear is separately grounded to a central "spike' which is literally driven into the ground, thus the physical metal of all components are melded together and ground loops are eliminated by cutting off the shielding and using two conductors instead of three.
p.s. while i like the speed of a crimping set, i don't know of a single high end facility which does not use solder. soldering is a skilled art (which is why i was fired from Bryston amplifiers) which when done properly is the best connection possible.