FM Acoustics FM 266 MK2 RC and FM 711 MK2 power amplifier reviews are coming September 10, 2015 Matej Isak Just got phone call from Natural Sound Europe. Another highly exciting news! FM Acoustics FM 711 MK2 power amplifier and FM Acoustics FM 266 MK2 RC preamplifier are coming next week for test and review. Yes!!! http://www.natural-sound.eu