Tubes and less sensitive speakers

Regarding the poet by @blisshifi: Mating subs with Maggies (in fact any and all dipole loudspeakers) is indeed a challenge. The solution is a dipole subwoofer, which Magnepan has been working on a for a few years now.

There is already a real good one available, the Rythmik Audio/GR Research Open Baffle Servo-Feedback Subwoofer. It employs two or three (your choice) 12" servo-feedback-controlled 12" woofers in an open baffle frame, and works splendidly with dipole loudspeakers. Check the GR Research website for details.

I have no personal experience with the Sanders Magtech amps (other than reputation), but they are manufactured by CODA, and that is never a bad scenario

Many years ago when they were current products, William Z Johnson came to our local dealer to demo his new model Maggie Tympani.  He was using ARC tube electronics, including large amplifiers.  That system sounded absolutely wonderful and with a wide varied of music.  Of course there was a connection between Magnepan and Audio Research for many years.  But tube amplification can work well if of sufficient power.

, I missed the low end slam, even with a sub.…

For more bass weight, must move more air which is typically a weakness of non-coned panel speakers.  Adding cone bass/sub-bass to Maggie’s is problematic- the Maggie’s are much faster than the cones and some do perceive this unsatisfactory difference.

Regarding proper subwoofer integration, I would caution that while this is a valid approach, in my experience, it can also be quite challenging due to the true dipole dispersion of Maggies.

@blisshifi IME the way to do subwoofer integration is to make sure the sub does not reproduce anything above 80Hz (otherwise it can draw attention to itself) and if there is only one sub, aim at a wall at an angle so the bass wave bounces off of it like a cue ball. This will help reduce peaks and valleys of bass in the room caused by standing waves.