The atm33a pretty un used microphone it's no bad sounding but it has so annoying issues.

Two things things will put you of this microphone you kinda have to have the right mic clip it's not really a universal shape. That's not a problem on expensive mics but you think that with a cheap condenser they would make it more universal. The other problems is the max spl which is quote on the spec sheet as 137db with phantom power and 123db with the battery. So technically you should be able to use on a snare well that's not the case you can and it's sounds pretty nice and gets and really fat sound. But if you play just moderately loud it clips so it's pretty great for brushs hot robs and sometimes jazz but not for a even moderately loud rock drummer.

The best think about the mic is it's low end it's tight and put smooth hard to explain it makes stuff sound fat and low. Great on a floor tom, bass amp and a deep snare drum it's excels. I haven't tried it on kick yet. i think the hi end on it is a little sizzley typical of cheaper electret condensers. And I think it's actually the housing ported design that grabs that low end. Because of the way t grabs low end it tends to get spill off axis in the lower mids. On the overhand it's ruler flat for 200hz to 2k the low end roll off isn't smooth but i think helps it's get the nice bass it has. After the 2k it's gets a bit crazy and boosts a lot. This mics probably pretty good at speech as it flat in the mids and peaks in the high's.

Overall it's an ok mic but there's better mics including the se1a that have come out since it's release and you can pic em up cheap but with £10-20 you can get an se1a so why bother. I got given mine from a friend so it's just another flavour/ colour on the palette.