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Oh harro there! I've been itching to fiddle around with DIY interconnect cables for some time now, having heard how good the Aurealis cables sound when assembled using quality components and some experimentation with geometry. @@gmdb (Geoff @ Aurealis) was very kind in providing loads of advice, suggestions and encouragement and I subsequently purchased four pairs of Aurealis star RCAs featuring gold plated tellurium copper conductors, and two pairs of KLE Copper Harmony RCAs featuring silver plated copper conductors. No brass here baby! I think the Aurealis RCAs are fantastic for $30 per set of four for a well engineered RCA connector. I've heard these up against the ETI copper bullets and couldn't tell the difference, so I was happy to buy some of them for my DIY cables. For the sake of consistency and to simplify the construction process, I sourced some Milspec silver plated solid core copper from Aurealis, and some pure silver and pure copper from A&E Metals in Sydney. No, it's not Neotech UPOCC wire, but it will suffice. All of the wire is 24AWG. The Milspec copper is teflon coated already, but the copper and silver are bare. Accordingly, I purchased some teflon tubing from Element14 to suit. This means that teflon is the only dielectric used on all of these cables. I also had some silver solder from a previous Aurealis order, and a bunch of Techflex and generic expanding sheathing from Element14 to dress things up a bit. Construction-wise, I went very simple - only two conductors with a light twist, and no shielding. The teflon tubing provides a nice consistent spacing between the wires when you lightly twist it. Due to the thin diameter of the completed cable, I used some surplus black silicon tubing to fabricate some 'bungs' to keep the wire nice and snug in the exit of the RCAs, and to provide some meat for the grub screws to compress into. This worked out neatly enough for DIY cables. The KLE Copper Harmony RCAs were used with solid silver wire, whilst the Aurealis copper RCAs were used with the pure copper and silver plated copper. This resulted in three different types of RCA cable which have the exact same construction method, but different materials and different different RCA connectors. Importantly, I haven't used any heatshrink on the interconnects, so they can easily be disassembled if I wish to experiment with different geometries (three wire braid with drain wire, 4 wire braid etc). The KLE/silver interconnects sound lovely so far - I've been using them for about two weeks now. Very clean, detailed and plenty of body. I don't perceive any nasty 'silver' harshness to the sound. I'm looking forward to trying the others soon! I also made up a basic USB A to USB B cable with no +5V line (only data + and - and the ground wire). This sits between the SB Touch and audio-gd DI V3 which is acting as an asynchronous USB converter. The data and earth wires are separated (although it probably doesn't make any difference as there is no +5V line to isolate the data wires from). The data wires are silver and the earth wire is copper, and the USB connectors are gold plated items which were scavenged from a poor innocent USB cable of decent quality. I'm not expecting to hear any difference compared to a basic USB cable, but you never know, especially after I've heard the differences between AudioQuest Cat7 ethernet cables (I kid you NOT!!!) At least they now look 'audiophile spec'. Heck... what can I say, I was bored! All in all, they look clean and tidy, and I'm certainly a fan of simple solid core interconnects with copper conductor RCAs, so I can't wait to compare them all and to tinker with different geometries in future.