Hey guys, apologies for the radio silence. Got a bit tied up.
i ended up getting the Michael fiddler’s spartan 20 and returned the Fosi. The spartan 20 is dead silent, literally no sound at all. Fosi albeit great value for money, had this constant noise. Also, it sounded a little bloated in the mids and mid bass.. everything was a bit exaggerated.. the spartan 20 sounds extremely natural.. a bit unexciting at first but the clarity, and naturalness has definitely grown on me.