only 160 ever made, this is the, IMHO, best iteration of the best sounding and feeling compressor made into pedal form. It is studio rack mount level for the stage, the greatness of the TX transformer big box adding a parallel dry level and a footswitchable boost to the mix. with bass or acoustic, this may be the only thing you need, with electric this and an amp already cooking and you're in heaven. And having A/B'd this and the smaller versions, the transformer definitely improves pedals "down the line" form this one even when off, something the buffer of the newer ones can't replicate. comes will all you see, just trying to fund a dream amp purchase.