Unfortunately, there is not and will not be a line out. On this basis alone, the Stereo 50 is unsuitable for Magnepan’s.
Magnepan’s A.K.A ‘Maggies’ are 86dB/2.83V with 4 Ohm impedance, so they come in at around 83dB/1W/1m.
To play at 105dB peak (THK recommendation and in line with realistic playback of real uncompressed dynamic range classical music) a pair in a normal sized room and with around 3m listening distance will need in the region of 400W peak power available.
So the Stereo 50 (25 W / 4 Ohm) will cut it.
