The Loki is as amazing for what it doesn't do as for what it does. It provides a well thought out range of EQ without any noise or signal damage. Mine is left on and bypassed until needed, and I've bypassed it completely to test the possible effect on my system from the thing itself and the longer run of interconnect needed to put it between my preamp and amp (two runs of 1 meter cable instead of one)...no perceptible difference, verified by a trusty DB meter and my earballs...also it doesn't click or let you know you just activated it except for the fact that the knobs now are in the mix. I use it rarely as my gear heap generally doesn't need it, but when some fave old Vinyl lacks sparkle you can dial that in, and that seems to be what I use it for the most, although for late night listening you can combat the dreaded Fletcher-Munson curve by boosting whatever you damn well please...I generally adjust bass a bit if needed just by controlling my subs with their level knobs, but if I'm lazy the Loki does a great job of that. The LED is a little bright (I fixed that with a green Sharpie), and it's single ended only...I imagine a balanced version is in Schiit's future...another great thing is that it's so cheap and small you can try it for a couple of weeks and not worry about a large shipping or restocking charge to send it back. Schiit should pay me for this sort of support but NO NO NO...they apparently do NOT care about me.