I ran my Maggie IIIas with an Audio Research D400 for years, then bought another D400 and used the XO1 passive crossover but quickly got myself a Marchand electronic crossover which cross to a pair of subs below 50hz then uses same slopes as Magnepan suggests bass to mid/high
To my ears the difference was pretty significant and and I haven't been a teenager for decades (sorry just being flip)
I thought one advantage was the quality of the crossover itself and limiting the bandwith each amp must produce
Supposed to audition the 3.7s in a couple weeks so will find out 1st hand what they sound like "out of the box".
Audio Research says that the D400s will drive the low impedence load presented by bridging the amps and driving Maggies so can use both amps still but again my ears will be the judge
I doubt I will pull the trigger until I can hear the 20.7 and check out some other models at the Capital Audi Fest this summer but "once you go Maggie you seldom/never go back" :-)
MikeH
To my ears the difference was pretty significant and and I haven't been a teenager for decades (sorry just being flip)
I thought one advantage was the quality of the crossover itself and limiting the bandwith each amp must produce
Supposed to audition the 3.7s in a couple weeks so will find out 1st hand what they sound like "out of the box".
Audio Research says that the D400s will drive the low impedence load presented by bridging the amps and driving Maggies so can use both amps still but again my ears will be the judge
I doubt I will pull the trigger until I can hear the 20.7 and check out some other models at the Capital Audi Fest this summer but "once you go Maggie you seldom/never go back" :-)
MikeH