I'm searching about these three's reviews or impression but can't find any. That's quite weird. Have anyone ever used one of these models? Please feel free and share the idea with us!
Thank you !
No problem. I'll have more to report once I actually receive the AC2.
I have never heard of anyone owning the AC1 and posting their impressions. But I do have the Kozee Infinity X1 single driver customs, and they are very enjoyable for the price. I still don't think that any single driver BA model can match the potential of dual driver models, and if you can afford the upgrade I think it is probably worth it.