Data Sheet
 ▸ Lake’s exclusive classic/linear-phase/FIR speaker processing 
platform with four throughputs
 ▸ Group control with Raised Cosine™ MESA EQ™ asymmetric 
filters
 ▸ LimiterMax™ peak and RMS limiters
 ▸ Extensive loudspeaker preset database (LoadLibrary™)
 ▸ Comprehensive clocking management system with low latency 
sample rate conversion
 ▸ Full support for Dante Controller
 ▸ Multiple and redundant inputs with programmable failover
 ▸ Four “Lake Class” analog inputs with Iso-Float™ ground 
isolation
 ▸ Two AES3 digital inputs (4 audio channels)
 ▸ Eight dual-redundant Dante network audio inputs with AES67 support
 ▸ Comprehensive 3rd part
y protocol for integration potential with 3
rd
party matrix systems via purpose-developed middleware
Lab.gruppen D Series: The Integration Superpower
The  Lab.gruppen  D  Series  provides  exceptional  performance  and 
expanded flexibility  in  audio  amplification  for  challenging  systems 
integration applications in stadia, arenas, convention centers and other 
advanced or demanding installed sound installations.
Extending downwards in power and based on the proven, innovative 
and green amplifier technologies of the flagship D Series, these D Series 
slimline models also include  Rational  Power Management (RPM™) –
a proprietary Lab.gruppen technology that rationalises power allocation 
and potentially reduces amplifier inventory. The Lake-variant D Series 
Lake Processing Technologies
Technical Data 
D SERIES LAKE: High-Performance Installation Platform
D 40:4L | D 20:4L | D 10:4L
D Series Slimline Features and Benefi ts
WWW . L A B G R U PPE N . C O M
 ▸ Four-channel amplifiers available in three power models
 ▸ D 40:4 - 4000 W of total output power (4 x 1000 W nominal)
 ▸ D 20:4 - 2000 W of total output power (4 x 500 W nominal)
 ▸ D 10:4 - 1000 W of total output power (4 x 250 W nominal)
 ▸ Channel your power - Rational Power Management (RPM)
 ▸ True flexibility in allocating power output across channels to 
match requirements, enabling more efficient use of amplifier 
inventory
 ▸ Any channel can be significantly scaled up in power from its 
average quarter of the total available power. 
 ▸ Exceptional power density with 4 high power channels in a 
sli
mline 1 rack unit form factor 
 ▸ Dedicated on-board surveillance & load monitoring system
 ▸ Unique power platform
 ▸ Universal regulated switching power supply with internal energy 
storage and best in class power factor correction
 ▸ Breaker emulation limiter with configurable breaker profile and 
current
 ▸ Efficient IDEEA class D amplifier modules with low impedance 
or direct 70 and 100 V drive.
 ▸ CAFÉ (Configuring Amplifiers For the Environment) Software 
incorporating ESP™ (Equipment Specification Predictor) for 
design, system and equipment planning, 
installation and 
commissioning.
models benefit from the proven package of onboard Lake Processing 
and  Dante™  with  AES67  digital  audio  networking,  and  also  offer 
integration potential with many 3rd party matrix and proprietary DSP 
systems via dedicated middleware. Equipment specification, commis-
sioning (including configuring RPM and other unique amplifier technolo-
gies) and on-going control and system monitoring are managed via the 
innovative CAFÉ™ software, running on Mac or PC. D Series features 
include redundant audio inputs as well as on board surveillance and 
load monitoring to fulfill the requirements of mission critical voice evacu-
ation compliance






