Rational Power Management:
Optimal performance and minimal
equipment costs
Rational Power Management provides true flexibility of power allocation
On top of the outstanding performance users have come
to expect from a PLM, the 12K44 model also features
Rational Power Management (RPM), a proprietary Lab.
gruppen technology that provides designers, systems techs,
consultants and integrators with unprecedented freedom to
allocate the available output power of each amplifier channel
for optimum performance with specific load conditions.
For the first time, RPM provides true flexibility in allocating
available power across the four output channels. Each
channel of the PLM 12K44 may be tailored to meet the
requirements of the connected load, and any power not used
for that channel may be allocated for use on other channels.
RPM helps to avoid amplifier over-specification, or bridging
of adjacent channels in order to meet minimum demands
on one power-hungry load, which would otherwise result in
a loss of channel count. RPM technology also enables the
user to minimize equipment costs, reduce rack space and
improve long-term energy efficiency – all achievable without
compromising sonic performance.

Rational Power Management incorporates features that
safeguard the defined power output of one or more specified
channels. From within the CAFÉ software, it allows the
desired power demand to be calculated for the different loads
in several different ways. RPM then analyses the desired
power in relation to the channel and device constraints and
guides the system designer towards the most effective way
of powering the PA.
Rational Power Management results in real-world savings,
both immediate and long-term. In many cases, fewer
amplifiers – or lower cost models – may be specified while
still fulfilling all power requirements.
It also allows better mains management, avoiding overspecification of mains distribution, cooling, and UPS (where
required). Finally, the overall gains in efficiency in larger
systems will minimize current consumption and reduce
operation costs – a “green bonus” for the system owner.

Amplifier Power Required

SUBS
LOW FREQUENCY
DRIVERS
MID FREQUENCY
DRIVERS
HIGH FREQUENCY
DRIVERS

Frequency

SUB

LOW
MID

HIGH

PLM+ Series - Amp channels power adjusted to match the loudspeaker requirements