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LM Series processors:
Power and flexibility for any application
Lake LM Series digital audio processors offer an
unprecedented combination of core processing
power, user-friendly control interfaces, and multi-format
connectivity. Exclusive LM Series features include
proprietary filter algorithms for Lake Mesa and Contour
modules along with standard I/O connectivity on analog,
AES3 digital and Dante network with programmable
automatic failover.
Singular performance, two configurations
The Lake LM Series comprises two models, the
LM 26 and the LM 44. Other than their different analog
and AES3 input/output configurations, both models
are essentially identical in performance and features.
Both can accommodate either Lake Contour modules
for crossover and delay functions, or Lake Mesa EQ
for the industry's most precise, flexible and sonically
impeccable equalization functions. Also, both incorporate
proprietary Lake processing algorithms for Raised Cosine
Equalization™, LimiterMax™ peak and RMS limiters, and
linear phase and classic crossovers. Maximum available
delay is two seconds.
The LM Series' easily programmable EQ and delay
capabilities allow quick reconfiguration for use with
either self-powered loudspeaker applications or in multi-
way systems using separate power amplifiers. Audio
performance is impeccable in every respect, with 24-bit
4
AD/DA conversion, 96 kHz internal sampling frequency
and a 32-bit internal data path. And a universal power
supply with detachable locking mains cable allows
worldwide use LM Series processors provide seamless
compatibility with Lab.gruppen PLM Series Powered
Loudspeaker Management Systems as well as Dolby®
Lake Processors and all legacy Lake processors, with
accessible simultaneously from the same Lake Controller
Windows-based user interface.
All connected, all the time
LM Series processors are the only products of their kind
to offer – as standard – analog, AES digital and dual
redundant Dante networked connectivity. There are no
separate versions, requiring choice of analog or digital,
and no extra-cost optional cards to order. With all three
connectivity types fully integrated into the core design,
LM Series processors can easily function as a Dante
break-in/break-out unit while also offering a programmable
failover feature and extensive signal mixing and
matrixing facilities.
LM Series units also include a 9-pin General Purpose
Input/Output (GPIO), configurable via the front panel
or Lake Controller. GPIO facilitates external triggering
of mute, power control and preset functions as well as
reporting of fault and status conditions.
Hardware stacking/linking and
software cross-configuration
Both LM Series processors support stacking/linking of
multiple units that enables them to function as a single
processor with expanded I/O, for example a 4 × 12 analog
I/O configuration (2 x LM 26) or an 8 × 8 I/O configuration
(2 x LM 44). Both models can be combined to offer further
flexibility. Essentially, this enables users to duplicate
functions of now-discontinued Dolby Lake Processors
with the same analog I/O configurations – although now
enhanced with greater flexibility and redundancy thanks
to upgraded Dante connectivity. I/O interconnections
between stacked/linked units can be realized using either
spare AES or Dante channels.
Front panel interface
The front panel interface includes dedicated input
and output metering for each processing channel,
plus dedicated mute buttons (with integral LED status
indication) for each processing channel. Parameters
are easily adjustable using soft keys and a rotary
encoder. The daylight-readable display switches
functions for comprehensive metering or to facilitate
signal routing or parameter adjustment.
The powerful LM 44 provides Mesa EQ filters and Linear phase crossovers with AES3 connectivity, 4 x 4 analog I/O
with Iso-Float and Dante digital audio.
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