Alesis MK2 Owner Reference Manual page 10

about the Monitor One • chapter 1
folded SuperPort overcomes this limitation by minimizing vent turbulence at
high air velocities, thereby ensuring that the enclosure tuning remains stable,
the acoustic output remains linear during heavy low frequency attack
transients, and that the reactive load above and below box resonance seen by
the driving amplifier does not dynamically shift in frequency. This all
translates to tighter bass with higher definition.
The Monitor One's 4 ohm load impedance takes advantage of today's
modern professional amplifiers which are generally capable of a 1 to 3 dB
increase in output power with 4 ohm loads over their 8 ohm ratings. The
result is a similar increase in the Monitor One's acoustic output over
conventional 8 ohm monitors. Reliable handling of this additional acoustic
output is ensured by the Monitor One's substantial power handling
capability. Typical near-field monitors are rated at 50-60 watts maximum, but
the Monitor One carries a 120 watt continuous power rating and has been
successfully tested to over 200 watts using the industry standard EIA-426A
method. This is a rugged speaker system designed for serious professional
use.
Covered with a vinyl laminate on the cabinet body and featuring a 1" thick
MDF powdercoated front baffle with radiused edges to decrease edge
diffraction, the Monitor One Mk2 may be mounted vertically or horizontally.
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Monitor One Mk2 Reference Manual