solder-Eutechnic,Wonder,WBT??

I don't know what dealers have it. Maybe Michael Percy. Here's the web site announcement:

http://www.trt-wonder.com/

I really like the Cardas quad eutectic. I bought 20ft. of it and 20 ft. of the new Wonder solder ultraclear recently and did an experiment with each separately on the connections of my preamp output caps as well as the wires to the volume pot. I initially cleaned off all the original solder( not sure what it was) and applied the Wonder solder. I listened periodically for a couple of days. Then I removed all the Wonder Solder, recleaned the connections, and applied the Cardas Quad Eutectic. Although both solders are wonderful to use( they both melt quickly at relatively low heat) and they both flow nicely and give a nice solid joint) I preferred the overall sound of the Cardas Eutectic. It just had a more natural sound with better harmonics and a cleaner, more extended top end. One guy on the Tweak Asylum at AA, as an experiment, actually used a couple feet length of each of the solders you mentioned as interconnects. He preferred the sound of the Cardas as well and used the Cardas as his main source of solder from then on. Just some food for thought. As usual, YMMV.

I also prefer the latter, of finding the ones that provide the most transparent(faithful to what's recorded) presentation.

Wonder solder has a new improved solder called the Signature.