This is a preamplifier for passive microphones (dynamic or ribbon mics) that boosts the signal significantly.
This sE DM2 is the successor to the sE Electronics Dynamite (sE DM1). These preamps outperform their overpriced competitors (Cloudlifter, Fethead).
Such a mic preamp is essential if you have a gain-hungry passive microphone such as the famous Shure SM7B.
The preamp weighs 69g by itself. In its tube, it’s 93g.
It’s still under warranty until 8 April 2027, so if it develops a fault before then, just message me and I’ll refund you in full and get refunded myself too.