User Manual
Page 16
The speaker has built-in amplifiers for best performance. Note that the M1Active 520/620 is an "active" loudspeaker with the M1Active 520 speaker. This means that you may want to use an external amplifier with built-in amplification and using an external amplifier could damage the speaker... accept both balanced and unbalanced signals, but we recommend balanced cabling for the woofer and tweeter. Do not use a portable USB or Firewire interface. Remember that the line-level audio output of your mixer or digital audio workstation should be connected directly to the speakers ...
The speaker has built-in amplifiers for best performance. Note that the M1Active 520/620 is an "active" loudspeaker with the M1Active 520 speaker. This means that you may want to use an external amplifier with built-in amplification and using an external amplifier could damage the speaker... accept both balanced and unbalanced signals, but we recommend balanced cabling for the woofer and tweeter. Do not use a portable USB or Firewire interface. Remember that the line-level audio output of your mixer or digital audio workstation should be connected directly to the speakers ...