Glockenklang 3-Band Electr. -stacked 4 Poti

I've bought the electronics as a replacement for my Warwick $$5's MEC default electronics and also to take off the "mid-edge" this bass has per default. The sound lost some of the deep mids, Warwicks tend to have and gained some clarity.
For the EQ capabilities, I can only say that everything each knob does eaxctly as you might expect - but in every case it's not annoying. If you increase or decrease the frequency level, it always feels musical. I don't know if you've had this with other electronics but with the default MEC, the higher frequenzies tend to get really sharp. no such thing with the Glockenklang ;-)
Installation is quite easy if you're familiar with electronics. You'll need to solder the connections to your pickups and the battery, that's all.

Well i bought it for project bass of mine (Ibanez SR1000 from '98). It is a preamp known to sound very true and hi-fi and I thought that could be just what I want and need... and it turns out I did not like the sound (subjectively) it was too clear and studio kind produced. Mind you, I am playing passive Jazz basses mostly so... just a thought (I was going for something like Ken Smith sound with this mod but got the opposite).
Otherwise product is fully functional and well made, very very low noise which I liked, just sound did not worked out for me..
All that being said it would be hard not to recommend Glock preamp to anyone looking for clear sound.