Any recommendations for an 8 core pure silver litz cable, ideally US$200-500?
I'll weigh in as well. I dont think you need to spend anywhere near $200 to $500 to get an outstanding pure silver litz. Funny enough I was chatting privately with another member and here's what came of that discussion - if you're interested.
As you know the subject of cables is a hotly debated one with as many opinions as there are choices! The first thing I'll say is that unless the stock cable is complete garbage, cable upgrades in general only provide marginal gains and some IEMs will demonstrate larger shifts in sound than others while some may not be affected at all.
Having said that different conductors do have different characteristics. Copper is known to be warmer. That doesn't mean it will take a bright cold iem and make it warm, it means that it will bring a bit of warmth or accentuate warmth. Silver is know to be bright. Again that doesn't mean it will take a dull, lifeless or overly warm iem and make it bright, it means that it will help accentuate the bright characteristics of an iem. A perfect example is what I wrote in the Mid Priced IEM Cable Thread. I popped a pure silver litz cable on my fusions and it brought forward the capabilities of the magnetostatic treble driver. It took beautiful treble and gave it a touch more presence. It did not fundamentally change the fusions. I hope that makes sense. One more thing; your player puts out its signal as an electrical current. The cable transmits that signal over to the IEM. So there are factors that affect the sound here too. The number of cores, the electrical resistance and the type of plug. Think about it, you could have a pure silver cable where the plug is copper, so the signal has to pass through the copper before it ever gets to the silver and then it passed back through whatever material the the MMCX or 2 Pin is made from.....
OK, I think that gives some context. Now as for your question, its very wide open. To answer "what is the best cable under $200" is really hard to answer per se because I dont know what kind of sound you want and what type of IEM you're going into BUT I really dont think you need to spend $200 to get an outstanding cable. My 3 best scores in the last few months has been an 8 Core Pure Silver Litz Cable from Nice HCK and I paid $40 for it. The 2nd one was the Graphene I picked up from XINHS on AliExpress. What I like about that cable is that it is Silver Plated OCC Copper with a graphene coating. Graphene is an amazing material. It's light weight, high strength and has tremendous conductivity. I've got a very high end Road Bicycle and I've got several graphene components on it. What I noticed with the graphene was that it kept all the detail and resolution of the planar in my EDP but it also brought a bit of weight to the bottom end. Again, it didn't change the nature of the IEM it gave a subtle shift.
So what does that mean? If I were to give you my advice on the Best Cable Under $200 Why dont you write to XIN HS and pick up a pure silver litz (they have 4 core listed but if you ask for 8 core, he'll make for you) and do the same with the the 4 Core Graphene they have listed. If you want 8 core just ask for it. You can get both cables for under $100 and it will give you a nice taste of the difference and leave you with $100 to play with. Tell him holsen from Head-Fi Canada sent you and he'll give you a little discount.
Of course you can spend a couple hundred bucks elsewhere and part of what you're going to pay for (in my opinion) is the brand name and the jewelry effect. Some of those cables are real pretty, but pretty doesn't (necessarily) sound better.
Now, I'm not saying that there aren't expensive cables that have been engineered with a cocktail of materials to optimize impedance, balance tonal properties etc, I'm just saying that if you're dipping you foot into the pool and want to figure out your preference while experiencing the differences between the two primary cable material in a high quality cable, you CAN do it affordablely. And sure, we can expand this dissertation and get into other materials like gold, palladium, etc and the effects on the sound signature.... but this is enough for now....
I'm in the professional development and sales / customer service training business and I always teach that people buy emotionally but justify rationally. If you spend several hundred or several thousand dollars on a pretty cable you bought because of the emotional satisfaction it brought (and there's nothing wrong with that) you're likely to also justify how great it sounds too...... Anyway, just my thoughts; I hope this is helpful.