i don't own any Forza cable. i like their work, used materials, and prices. was interested in Claire HPC Mk2, but needed mmcx/2pins termination to be used with iems (then i use mmcx/2pins to 2.5/3.5mm adapter for headphones). asked for a quote and the price was increased too much (soldering 26awg 8 cores on tiny plugs is hard) for my wallet; asked if the wire is litz "geometry" or true litz (individually enameled strands into each core), and got no answer. i suspect it is not litz.
that's why i went for nicehck and electro acousti in AE.
the differences between 169 and HPC Mk2 are:
- 169 is copper and silver plated copper (mixed into each core) frozen up-occ litz; HPC Mk2 is copper, frozen up-occ (it's not clear it is litz, i suspect it isn't, because i've only found 26awg up-occ silver plated litz wire and 28awg copper/spc/mixed litz wire, but not 26awg copper litz).
choosing copper, silver plated copper, mixed, or silver wire depends of the source+phones you plan to use. i like 169 a lot, because it has the best of both materials, adding more spacious mids and highs (clearer perception), while keeping good bass boldness and rumble.
if available, i prefer litz (darker background, deeper stage).
- 169 is 4*28awg cores; HPC Mk2 is 8*26awg cores. so Mk2 is thicker and has less resistance (better).
- 169 is only mmcx terminated. Mk2 allows various headphones terminations, and length customization, but if you need mmcx/2pins for iems, or custom options, get prepared for a considerable price increase.
you are in the right path, don't waste time with other wires. try neotech frozen up-occ. wish i'd had found these before.
so it depends of what are you looking for: copper/spc/mixed/silver; litz/no litz; critical impedance; terminations; customization.
i'm in love with 169, and i'm searching for that kind of wire to build some interconnect cables now.
another great option is electro acousti up-occ cables. in your case, you should consider it, because you can talk and agree for customization (the increase of price is much more affordable than forza's). components used are top quality, compared with most chinese manufacturers.
if you look for copper litz, cables 170 and 171 in my list are the best copper ones i've found. 4/8 28awg cores. more terminations and customization (just chat with them) available. i'm going to post measurements and impressions of 171 (8 cores) right now. my best copper one.
if you look for tighter but punchy and detailed bass, and more spacious and detailed mids and highs, you can ask for a custom cable using any up-occ wire from their stock (wide range).
i've just received custom cables using neotech up-occ pure silver and gold (99% silver, 1% gold). after first AB, i'm impressed with sound stage, and mids/highs layering. amazing.
ask them to build your custom length and terminations, choose the exact components (wire, plugs, splitter, slider), and you'll see the price is very competitive.
i'm going to post pics, measurements, and first impressions of the cables i've received from them, in a few hours.