Wow.....I just got off the phone w/ old man Wickersham himself and he is sending me FREE replacement bits for the Alembic system I have installed in my Warwick Dolphin 5. Alembic has some of the best customer service IMO. I have a WAXY (big 'un)a MXY, two filters and two 3-position Q switches. My hassle was the filters did not sweep low AT ALL. No subterranean lows, just screechy highs and a bit of mids. That I can even get this legend on the phone to chat about my hassle and that he would just go ahead and ship me free replacement bits is a testament to their service I'd say...... I replaced the LAME MEC system in my two Warwick basses w/ full on Alembic stuff and have never looked back.......trash your MEC! They sound terrible and will crap out on you eventually...mine did! My Alembic's have a very clear, natural open tone....lovely.