Given that you like your MMGs but are moving to a 13x22 listening room, your situation practically screams for the Magnepan 1.7 or 1.7i.
I have been enjoying my 1.7s in a 16x18 vaulted ceiling living room (plus front hall and dining area in an open architecture) for 3-1/2 years. I like 'em better every time I fire up the stereo.
I must have gotten lucky, but high current MOSFET amps make driving the Maggie 1.7s easily. Here are some candidates:
Parasound Halo A23: 125/200/400 wpc into 8, 4, and 2 ohms respectively. All the power, current, and stability you'd need. $995.
Parasound 2125v2: 150/225/225 wpc into 8, 4, and 2 ohms respectively. $795. Really cool feature: High pass filter settable to 20 or 40 Hz. This can be a help to the Maggies by not feeding them a deep bass signal. Especially handy for getting a smooth blend with a subwoofer should you go to that later.
Odyssey Khartago: 110 wpc and stable into 2 ohms. Considered a major overachiever at $999. These amps are used for testing and voicing the highly regarded Magico loudspeakers.
If you sell your MMGs and GFA-555, it should mkae it easier to get the 1.7 or 1.7i Maggies and a Parasound or Odyssey amp.
I have been enjoying my 1.7s in a 16x18 vaulted ceiling living room (plus front hall and dining area in an open architecture) for 3-1/2 years. I like 'em better every time I fire up the stereo.
I must have gotten lucky, but high current MOSFET amps make driving the Maggie 1.7s easily. Here are some candidates:
Parasound Halo A23: 125/200/400 wpc into 8, 4, and 2 ohms respectively. All the power, current, and stability you'd need. $995.
Parasound 2125v2: 150/225/225 wpc into 8, 4, and 2 ohms respectively. $795. Really cool feature: High pass filter settable to 20 or 40 Hz. This can be a help to the Maggies by not feeding them a deep bass signal. Especially handy for getting a smooth blend with a subwoofer should you go to that later.
Odyssey Khartago: 110 wpc and stable into 2 ohms. Considered a major overachiever at $999. These amps are used for testing and voicing the highly regarded Magico loudspeakers.
If you sell your MMGs and GFA-555, it should mkae it easier to get the 1.7 or 1.7i Maggies and a Parasound or Odyssey amp.