LAB GRUPPEN LM44 DSP Controllers

อุปกรณ์ปรับแต่งสัญญาณเสียง LAB GRUPPEN LM44 4-in/4-out Lake® Processor, Mix-matrix and system EQ between FOH console and loudspeaker system, 96 kHz internal sampling frequency, 32-bit, Full control via Lake software


฿230,000.00 ฿195,000.00



LAB GRUPPEN LM44 Digital Signal Processor 4-in/4-out

อุปกรณ์ปรับแต่งสัญญาณเสียง LAB GRUPPEN LM44 4-in/4-out Lake® Processor, Mix-matrix and system EQ between FOH console and loudspeaker system, 96 kHz internal sampling frequency, 32-bit, Full control via Lake software

The LM 44 provides a four input/four output analog configuration that is suited for a variety of system signal processing and routing applications. The LM 44 also provides 8 × 8 AES3 digital I/O and 4 × 8 Dante networked I/O, all with comprehensive signal routing to provide Dante break-in / break-out and failover functionality. Two LM 44 units may be stacked and linked to function seamlessly as a single 8 × 8 processor.

Product feature


The advanced technology of Lake Processing provides unparalleled power to shape and optimize sound in a variety of environments, regardless of loudspeaker system, the venue size or acoustics, or the program material.

LM 44 provides the ultimate combination of input/output signal flexibility and fail-safe operation. Audio inputs are accepted via the Dante network as well as on connectors for AES3 digital and analog. Simple programming in Lake Controller allows multiple, user-configured automatic switching scenarios. For example, signals may be distributed over the Dante network, with an AES3 input source failing over to analog – and with the result automatically cascading to all Dante receivers. In addition, the LM Series’ dual-redundant network topology enables seamless switching in case of a problem on one Ethernet link.

LM 44 provides a total of eight input routers which can be independently configured with up to four input fail-over priority settings. And the output of any of these input routers can be patched directly to any analog, AES3 or Dante output – without using any of the valuable Module processing channels.



  • Mix-matrix and system EQ between FOH console and loudspeaker system
  • Line driver and system EQ for self-powered loudspeaker systems
  • Inserted EQ for monitor systems
  • Dante break-in/break-out
  • Transmission system to and from FOH and stage L /stage R
  • 4-in/4-out Lake® Processor
  • Raised Cosine Equalization™
  • Linear phase and classic crossovers
  • LimiterMax™ peak and RMS limiters
  • Maximum available delay of 2 seconds
  • Analog with Iso-Float™ ground isolation
  • 8-in/8-out Digital AES3 and Dante networked I/O
  • Gigabit Dual Redundant Dante™ by Audinate® audio networking
  • Daylight-readable display
  • Dedicated Module Input and Output LED Metering
  • Dedicated Module Input and Output mute buttons with LED
  • Dynamic buttons and rotary encoder for parameter adjustment
  • High quality A/D and D/A 24-bit conversion
  • 96 kHz internal sampling frequency
  • 32-bit floating point internal data path
  • Full control via Lake Controller software application
  • Software configurable GPIO


ModelLM 44
Module configuration2 Contour or 4 Mesa modules
Channel processing6 in Contour mode, 4 in Mesa mode
Input routers8 input routers with 4 priorities in each, seamless failover to lower priorities
Module input mixer4 ch. for Contour, 8 ch. for Mesa-modules. Mix any ratio between all input routers.
Input processingParameteric EQ with Mesa and Ideal Graphic equalizers, both utilizing Raised Cosine algorithms
Output processingLinear phase or Classic crossovers, Parametric EQ, shelving and all-pass filters
FeaturesDelay, Mute, Phase, Gain etc.
LimitersLimiterMax with Peak and RMS limiter. Confi gurable MaxRMSLevel, MaxRMSCorner, MaxRMSAttack, MaxRMSRelease and MaxPeakLevel
SuperModule compatibleYes
Audio Performance
Conversion resolution24-bit
Internal Sample Rate / Data path96 kHz / 32 bit floating point
Product propagation delayBest case (AES synchronous 96 kHz to AES synchronous 96 kHz via module) 0.871 ms Analog (Analog in to Analog out via module) 1.049 ms Pass thru (Analog in to AES synchronous 96 kHz bypassing module) 0.158 ms
Maximum available user delay2 seconds
Inputs and Outputs4 inputs, 4 outputs
Frequency response, analog-to-digital+/-0.1 dB, 20 Hz to 20 kHz
Frequency response, digital-to-analog+/-0.03 dB, 20 Hz to 20 kHz
THD+Noise, inputs0.00024% typical at 1 kHz
THD+Noise, Outputs0.00037% typical at 1 kHz
Dynamic range, inputs116 dB
Dynamic range, Outputs115 dB
Input impedance20 kOhm balanced, 10 kOhm unbalanced
Output impedance50 ohms
Maximum input level+26 dBu
Input sensitivity – settings for digital full-scale+12 dBu, +26 dBu
Maximum output level21 dBu
Crosstalk, inputs-98 dB, 20 Hz to 20 kHz
Crosstalk, outputs-98 dB, 20 Hz to 20 kHz
Common mode rejection ratio (CMRR)>70 dB, 20 Hz to 20 kHz
Dante Audio Network
Inputs and Outputs4 inputs, 8 outputs
Supported sample rates48, 96 kHz
Support redundant pathsGlitch-free Dual Redundant Dante using two Ethernet networks
Receiver latency0.5 ms, 0.8 ms, 1.3 ms, 4 ms
Device presets
Frame presets100
AES3/EBU (sample rate converters available as desired)
Inputs and Outputs8 inputs, 8 outputs
Supported sample rates44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz, 176.4 kHz, 192 kHz (I/O individually selectable)
Supported resolutionsUp to 24-bit
THD + Noise0.00002 % at 96 kHz and 0.00006 % at 44.1 kHz sample rate
Dynamic rangeBase48 -140 dBFS, Base44 -125 dBFS
Clock selectionManual or automatic according to priority scheme
Oscillator type / synchronizationHigh quality VCXO clock can provide Dante master clock or slave. Automatic synchronization with Dante network.
Base482 (Primary and SRC)
Base441 (SRC)
Clock accuracy< ± 7 ppm
Inputs2 General Purpose Inputs (GPI) supporting external contact closure
Outputs2 General Purpose Outputs (GPO) with internal contact closure
Software configurable input controlStandby state, Mute state, Dual preset recall
Software configurable output indicationStandby state, Mute state, Faults, Ready
Back panel Interface
Analog Inputs and Outputs4 + 4 XLR
AES Inputs and OutputsDB-25, with selectable termination
Ethernet PortsAuto 100/1000, Auto uplink, 2 x Neutrik etherCON RJ45 connectors
PowerDetachable locking 3-pin IEC
Control and monitoring interfaceVia Ethernet for Lake Controller software, or DLM (the 3rd party protocol)
Front-panel user interface
DisplayDaylight readable monochrome (128 x 64)
MetersLED for signal level and clip indicators per channel
Mute accessDedicated Mute button and LED indication per processing channel
MenuIntuitive and powerful user interface with soft keys
System status indicationLED Fault and Warning indication and detailed description on display
Parameter adjustmentSingle/multiple parameter edits with rotary encoder
Nominal voltage100 – 240 VAC
Operating voltage70-265 V AC
Power consumption30 W maximum
Dimensions483 mm (19″), 44 mm (1 U), 290 mm (11.5″)
Weight5 kg (11 lbs)
FinishBlack painted steel chassis with cast alumimum handles
ApprovalsCE, ANSI/UL 60065 (ETL), CSA C22.2 NO. 60065, FCC