THe tweeter fuse should be left alone. THe midrange can be removed if you do not play at really loud levels. (if you are willing to risk blowing out the mids the day you decide to 'really crank her up'// Just sayin'. many folks have never blown a fuse, Others have playing loud. So it all depends on your level of playback.A single wire jumping the whole midrange fuse parts is easy to install under the little metal panel on back.
Bypassing the midrange fuse completely under the little panel really improves the sound. I did it to my previous 3.6 and to my current 20.7 Maggies.
One comment on the sound.. Adding some resistance to the midrange actually improves the midbass,, a LOT. and makes all the bass better. Something along 1.2 ohms to 1.5 ohms.. I use 1.3 ohms with a combo of three parallel 3.6 high end resistors. I suggest getting a PATH Audio resistor rather than the bad sounding freebies supplied by Magnepan. YOu can start with sone Mundorf which a a tenth of the PATH price... To listen.
I bought a pile of resistors to find the exact right quality of sound. And now have two Path 3.9 with one Duelund 3.9 bundled inparallel on the mids. The MIDRANGE resistor does NOT attenuate the sound. it adjusts the TONE of the midrange. lower resistance brighter mids. higher resistance warms up the tone.. Your call. Your room, your ears.
I would definitely do the resistor fiddling before you add the bass panel.
