I was too curious so I had to order these. Just got the Gemini in today and they sound great. Treble I missed you. Going from slightly bassy headphones it feels like someone turned the treble up to a more balanced state but it's not fatiguing or screechy but it does teeter on that line of possibly being too sharp like almost all studio monitors. I really like the treble on these. Overall great sound lot of clarity and resolution but they are slightly unforgiving of bad recordings. It's like driving a race car and hitting a pothole you're going to feel it.
The only downside was that they are small as I've been warned if you have a big head like myself. I modified them by bending the metal so they fit nicely. Now I just have to stretch them out so it doesn't clamp as much.
I'm definitely not disappointed in these for 55 dollars. They're probably one of the best headphones under 100.