I'm not getting into the debate over conductor material but would recommend Teflon for the insulator. Why? High melting temperature so less likely to damage it while soldering and then there is the whole low dielectric absorption thing.
Amp Internal Wire
Hi Gents, has anyone have any experience with upgrading amp or preamp internal signal wire? Most older equipment seems to have thin maybe sometimes poor internal wiring. In the world of OFC/OCC/Sterling and even more exotic wire available these days, any experiments done using this internally on components swapping out the cheap?
Lots of discussion about doing this with speakers, but never with components I've seen. For instance, I am thinking about replacing copper 'appliance' wire in an old Bryston with 14awg sterling from the board to the speaker binding post board.
Any thoughts?
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@theaudiomaniac Pot meet Kettle.
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The first time you take a vintage piece apart, you may be shocked at the simple quality and small diameter wires you find. Keep in mind, this is within the pieces that produced results that made the reputations of these great companies. You mentioned amps, but I will never forget what I found inside the Fisher/Electro-Voice speakers I inherited, (made in 1958) The wires looked just like these: http://www.fisherdoctor.com/ev.html just came across this tidbit "They decided to focus their business on audio products. The company designed a PA system for Notre Dame football coach Knute Rockne. Rockne, who had difficulty being heard at football practices due to health problems that affected his voice, called the new PA system his "electric voice". Rockne’s remark inspired the company’s name. On June 1, 1930, Burroughs and Kahn incorporated under the name "Electro-Voice".[2][3]"
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I like the internal wire this company uses in their amps. See below: Mike amplifiers in the world. Scroll to learn more.
Manufacturing Process Our amplifiers are assembled and wired by hand at our factory in Massachusetts. Analog sections of our products utilize individual, discrete components—no chips!—and all wiring is point-to-point. These techniques are labor-intensive and far more costly than what you’ll find in throw-away electronics, but ensure a lifetime of reliable performance and serviceability. Completely Hand Wired Wiring and soldering of all Rogers products meet Military Standard 2000 requirements—sometimes called “Mil-Spec”. All our assembly technicians are trained and tested on these high standards. Dual Power Supply Circuits Dual linear power supplies can easily handle large dynamic transitions in the audio signal, while maintaining a smooth and clear midrange. Vocals are presented with a truly rich and warm feel. Internal Wiring Wiring is the signal path of any amplifier, and it does make a difference in both durability and performance. We use 18 gauge Military Standard 16878 teflon coated, silver plated copper wire. This is expensive (besides being a mouthful!), but is used in mission-critical applications like the Navy’s AEGIS cruisers. Teflon coating provides heat-protection for decades, where common PVC-coated wire will crack and degrade over time. The 18 gauge wire provides greater signal capability than a trace on a printed circuit board, and ensures that the amplifier will be stable under any condition, and will never limit the dynamic range or transient abilities of your amp.
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