I'v used this in the studio for a sub kick mic, I usually need to put a couple of pads on there but this comes with two, so that's awesome. The polarity inversion switch is really handy, I've used it on stage monitors in effort to try and reduce feedback a little. I'll have to try it out more to see if that works well though. It's a bit pricey but not too bad if you just want one of them.
Overall I would be hesitant to purchase a load of them just because of the price but it seems to work really well so far. I would definitely recommend one to a friend if they asked but it's not something to rave about.
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