I really love the WBT spring loaded spades. They grip really well.
Use a cold solder joint, not actual solder. Here's a great, top end example:
but for core materials copper is really hard to beat. Gold plating over copper is also good, since both are soft, and the gold adds corrosion resistance. Here are much more affordable versions:
But right inside the speaker and the amp there are soldered connections, so I never really understood the anti-solder argument. If you refuse to just solder, you may want to think about crimping and then soldering. There are literally hundreds of solder joints in your dac, preamp, ICs, and amp. Is eliminating one or two really going to make any difference?
There's a difference between line level electronics and speakers.
The high current connections are between the amp and drivers, so personally I'd discourage it. Notice there are no solder joints between the power outside your house and the electrical outlet. Everything there is a pressure connection.
Of course, there is solder used in some relatively high current places, like bridge rectifiers and primary filter caps, but the biggest power caps use screws, not solder, to connect.
There’s a difference between line level electronics and speakers.
Okay, forget line level stuff, although I don’t see how they are less susceptible to the effects of a soldered connection than speaker level connections. Most of the connections inside an amp and inside speakers or crossovers that are "speaker level" are soldered.
Over time, movement will make it break or become intermittent faster than pressure connections. This is an important reason why solder is not used where two materials will flex.We’re talking about home audio systems that don’t move or vibrate like heavy machinery or production equipment. Our systems live a pretty luxurious life in climate controlled environments and spend most of their time sitting completely still. If your solder connections are breaking, you are doing something very wrong.
Thanks for all of the recommendations. I have used Cardas spades before with a pair of early 2CEs and liked them. Can I not use them on the new 2CE Sig iis because they don't make one narrow enough to fit that screw plate? The WBTs are very nice, but expensive. I'll look into the AQ and Vampire BARs as well. Would it be OK just to crimp, or do I need to solder or cold weld to secure connection? I am interested in hearing from anyone who has used various spades specifically on the 2CE sig iis.Thanks everyone.
Why do you need to contact Vampire? The BAR spades are available for sale online from multiple places.