PENON OBSIDIAN

Made as a first modular plug from Penon, you can basically leave it on your IEM and change plugs to join the Obsidian with any amp. Bestowing a style of authority and warmth. Such gifts will come in handy if you're trying to adapt a playback signature (as integration) into possible found synergy. So look at bright or medium playback temperaments as being the best union with the Obsidian. Yet at times the profound authority can overcome even the tonal balance, making the Obsidian truly the best cable with something like the Vortex IEM.

https://www.head-fi.org/showcase/penon-obsidian.26143/reviews#review-29789

The Obsidian is only partially gold plated which brings out a slightly richer tonal character to the host IEMs with the base cores being a higher end of pure copper cable. This in turn makes the Obsidian a more versatile cable vs the 100% gold plated cables.
The best matchups for the Obsidian cable are neutral, bright, treble first and overall balanced IEMs. The Obsidian will work extremely well with BA or hybrid type of IEMs.
the Obsidian enhances its mids to bass presence while bringing a smother richer treble response. This is in comparison to its stock cable that enhances brightness a bit too much for my liking.

https://www.head-fi.org/showcase/penon-obsidian.26143/