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.
This is a fantastic preamp! It doesen't colour the tone or make the bass sound active. It's organic and dead quiet in all positions. I have nothing bad to say, other than that the stacked pot is unusually thin. This may cause some problems finding a knob that'll actually fit.
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