I bought this cable with the Sennheiser connections, because I have a Sennheiser IE600 IEM. My main priority with this purchase was a good fit with my IE600, because the IEM uses a slightly different MMCX connector. I have never spent this much money on a cable before, but options are limited for the IE600, so I decided to take the plunge.
The Ethos cable I received fits my IE600 perfectly. It is more snug than the original cable that was included by Sennheiser. If you are looking for an IE600 cable that fits, I can confirm that this one worked for me. I am giving this cable 5 stars because it does exactly what I bought it for.
Other things I can say is that the cable feels nice and thick, it does not tangle, and it is pleasing to handle. The white color is attractive.
Not cable-related, but Null audio sent the cable in a nice leatherette case. The leatherette case was inside of a nice embossed cardboard box. I now use the cardboard box to store my IE600s (perfect size). I use the leatherette case to store a different pair of earbuds. In other words, the packaging and unboxing was very nice.
For reference, here is exactly what I ordered:
1x Ethos Series MKVI Premium Upgrade Cable for Headphone | IEM for $0.00 USD each Headphone Connection: Sennheiser IE300/600/900
Stereo Connection: NL4 Rosegold 3.5
These are amazing cables that I have ordered and I have observed an improvement in the sound quality on my HiFiMan Sundara headphones.
Genuinely one of the best cables I have used for the ie900. Originally had issues with treble peaks and just overall harsh treble for the ie900. Ethos VI completely fixed that for me, and added a tone of excitement to the pair.
Null Audio won't fail you.
I recently purchased a 4.4 mm male to 4.4 female interconnect and as a bonus surprise Null Audio upgraded it to an 8 wire copper the same as the 8 wire Tiburon I had purchased in the past. This is a wonderful sounding interconnect that is warm with accentuated bass without sacrificing details. As always the workmanship is top notch and unsirpassed for the price in my opinion.
This is the second cable I have purchased from Null Audio, the first was a massive improvement over the O/E that was supplied with the iem's, the Aoraki is a game changer. In real terms I've only had a limited amount of listening time with the new cable compared to 3 years with the previous one, the difference is incredible, it's more musical, the sound staging sounds wider than before, it's another level, I'm delighted with the purchase and cannot wait to enjoy it more.