Mine do not look like that. There is no vent in my black/black ZSN.
It’s totally blocked off, ie the plastic body was never drilled. Only my purple one is drilled.
So here we are again, with differences. Some with vents, and others with no vents. Some wired in phase, others wired out of phase. Were the vents tuned that way on purpose? Was it an unintentional QC error? Who knows, each one is like a Fukubukuro mystery surprise bag!
So if someone is writing a review, or a people are reading a random review, or someone is giving their impressions, or someone else is making a recommendation, how do we know that the ZSN person #1 owns will be the same as the one person #2 buys?
How frustrating is that? KZ, you’re killin’ me Smalls.