Is it bad that I went in with expectations? I know it's best to be as unbiased as possible, but any bias was addressed for you to better relate your expectations to my experiences. 7Hz—this barely known brand for most people—is seemingly 10 years old now, and the only thing it has really been known for is the Timeless from last year. Many others and I were impressed by it, and eager to see what was next. As it turns out, a novel-looking set based on the Timeless design and accessories was next. The all-new 7Hz Eternal is like the evil twin character in manga with a darker color scheme throughout, including for the case and cable, while flashier in aesthetics courtesy a decorative face plate aiming to look like a huge dynamic driver, and there is the sapphire-coated optical glass cover which will bounce light back at others and give off a different color more often than not. It's a single, large dynamic driver set that wants to build upon the hype created by the Timeless, and I have to say that this set is unfortunately not worth the hype.

Most of the issues can be seen in the treble response which goes beyond just overly bright into the realm of annoying, especially with the 5 kHz presence that is highly elevated and even affects timbre, and subsidizes some instruments at the expense of others. Vocals can be bothersome or appealing depending on your taste, and then there's the actual bass response which left me wondering whether my set wasn't working as intended until I graphed it and realized it was measuring as expected. This dynamic driver is one of the least dynamic in wired IEMs I have listened to, and I think EQ is a must to make it really shine in the bass. But then we get to the limitations of EQ not saving it elsewhere, so I find it hard to recommend the 7Hz Eternal for most people who could be better served with the likes of the MOONDROP KATO and Tanchjim New Hana for far less money spent.