LAB PLM 20K44 Touring Amp

Ursprünglicher Preis war: 10.825,00 €Aktueller Preis ist: 9.990,00 €.


20,000 Watt Amplifier with 4 Flexible Output Channels on SpeakON Connectors, Lake Digital Signal Processing and Digital Audio Networking for Touring Applications
PLM 20K44 SP

The PLM 20K44 is the natural successor of the proven, road tested, and trusted LAB GRUPPEN touring foundation exemplified by the iconic PLM 20000Q. Now offering an extended 4-in, 4-out configuration together with twice the processing power via the latest version 6.3 Lake Controller release, plus industry-standard Dante® networking, the PLM 20K44 sets the benchmark for Powered Loudspeaker Management Systems.


The PLM 20K44 combines four channels of extremely powerful amplification with unrivalled signal processing and audio management. At the core of the system concept is the total integration of all devices – including networking, audio I/O, signal processing, amplifiers, power supply and connected mains supply – allowing complete control and monitoring of the entire platform, resulting in unique operational benefits.

The Power of LAKE Processing

The PLM 20K44 features the legendary power of exclusive LAKE Processing algorithms, incorporating four full-featured LAKE modules with four discrete channels of audio throughput input to output. Audio signals are selectable from four channels of analog (with Iso-Float ground isolation), four channels via AES3 digital inputs and eight dual redundant Dante networked digital inputs. Input signals are individually selectable for each channel, with programmable failover to a lower prioritized input.


The full-featured, on-board LAKE Processor includes group control with Raised Cosine MESA EQ asymmetric filters to match the responses of any loudspeaker system. LimiterMax peak and RMS limiters set the industry standard for loudspeaker protection and sonic transparency.


The included LAKE Controller software provides a unified interface for control of Lake functions and for comprehensive monitoring of both amplifier status and connected loudspeaker loads. Optimized for a wireless tablet PC, LAKE Controller is easy and intuitive to operate, with the “feel” of real-time analog faders and controls. Lake Controller also features seamless integration with third party, real-time sound system measurement, optimization, and control software packages. Users can measure spectrum and transfer function and adjust system EQ at the same time, using the same user interface.


LAKE Processing offers classical crossovers (selectable up to 48 dB per octave) as well as linear-phase crossovers capable of slopes exceeding 180 dB per octave for greater control to limit lobing and off-axis cancellation.

Allocate Power Where It Is Needed

RPM Provides ultimate flexibility of power output allocation across channels to match specific load requirements, enabling more efficient use of amplifier inventory

Processing / Network Lake / Dante
Number of amplifier channels 4
Total burst power all channels (share among channels with RPM) 20000 W
Max output power (all channels driven)1
2 ohms 4400 W
2.67 ohms 5000 W
4 ohms 4400 W
8 ohms 2300 W
16 ohms 1150 W
Hi-Z 70 V 3300 W
Hi-Z 100 V 4700 W
Max output power single channel1
2 ohms 4400 W
2.67 ohms 5900 W
4 ohms 4600 W
8 ohms 2300 W
16 ohms 1150 W
Hi-Z 70 V 3300 W
Hi-Z 100 V 4700 W
Amplifier output modules (all models, all channels)
Peak output voltage 194 V
Max. output current 67 A
Rational Power Management (RPM) Regardless of model, any channel has potential to deliver the max single channel output power
Default voltage limitation (can be lifted with RPM configuration) 194 V
Protection features Current Average Limiter (CAL), Very High Frequency Protection (VHF), Direct Current Protection (DC), Short Circuit Protection, Current-Clip Limiter, Voltage Clip Limiter, Temperature protection
Audio Performance (Amplifier platform with digital input)
THD + N 20 Hz – 20 kHz for 1 W < 0.05 %
THD + N at 1 kHz and 1 dB below clipping < 0.04 %
Dynamic range > 114 dB
Channel separation (Crosstalk) at 1 kHz > 70 dB
Frequency response (1 W into 8 Ohm, 20 Hz – 20 kHz) +/- 0.05 dB
Internal Sample Rate / Data path 48 / 96 kHz / 32 bit floating point
Product propagation delay AES 96 kHz / analog input 1.61 / 1.68 ms
Lake processing
Loudspeaker processing Up to 4 modules of Classic/linear-phase/FIR crossover, EQ, delay, LimiterMax™ – peak and RMS limiters
System tuning Group control with Raised Cosine™ MESA EG™ asymmetric filters
Input redundancy / Matrix Automatic 4 level input redundancy / 4 input mixers
System integration Comprehensive 3rd party protocol over UDP Ethernet
Measurement & Analysis
Pilot tone generation and analysis Yes
Load impedance analysis Yes
Real Time Analyzer (RTA), 3rd party integration Yes
Dante Audio Network
Dante I/O 8 x 8
Network topology / redundancy Flexible topology / Supports daisy-chained and Dual redundant networks
Sample Rates / Transport 48, 96 kHz / Uni + Multicast
Network latency 0.25, 0.5, 1.0, 2.0, 5.0 ms
Device presets
Local memory locations for the settings of the product 100
AES Inputs
Inputs 4 AES inputs
Supported sample rates / resolution 44.1, 48, 88.2, 96, 176.4, 192 kHz / up to 24 bits
Sample rate conversion THD+N 20 Hz – 20 kHz unweighted 0.0000003
Analog Inputs
Inputs 4 high quality inputs with Iso-Float ground isolation
Maximum input / digital reference +26 dBu / +21 dBu
Sampling rate / Resolution 96 kHz / 24 bit
Input impedance balanced / unbalanced 20 / 10 kOhm
THD+N (typical at 1 kHz unweighted) 0.0000022
THD+N (typical at 20 Hz and 20 kHz unweighted) 0.0000033
Adjustable Inter-Sample Voltage Peak Limiter (ISVPL) 17.8 – 194 V, step size 0.1 V
Current Peak Limiter < 300 ms 67 A peak
Current Average Limiter (CAL) > 300 ms 33 Arms
MaxRMS (rms voltage limiter) Yes
MaxPeak (peak voltage limiter) Yes
Amplifier gain 22 – 44 dB, step size 0.1 dB
Output attenuator -Inf to 0 dB, step size 0.25 dB
Back panel Interface
Analog, 2-channel I/O (input + link) 4 x 3-pin XLR, electronically balanced
AES / EBU / I/O (input + link) 2 x 3-pin XLR
Output connectors Neutrik speakON (1 x NLT8, 2 x NLT4) or 4 Binding Posts (pairs)
Auto 10/100, Auto Uplink 2 x RJ45 etherCON
Control and monitoring interface Via Ethernet for Lake Controller software, or DLM (the 3rd party protocol)
Detachable mains cord Neutrik PowerCon rated at 250V/32A
Cooling Three fans, front-rear airflow, temperature controlled speed
Front-panel user interface
Display 2.5 inch, black / white, daylight readable LCD
Fault/Warning/Limit/Clip indicators RGB LEDs and detailed fault description on display
Mute and soft function buttons 8 provided
Standby Power button On/Standby
Mute Enable button Enables muting of outputs and inputs via soft-button keypad
Meter button Toggles through meter views
Menu button Provides a menu driven interface for full function front panel control
Rotary Encoder Yes
Exit Button Provides a “back” function
Mains Power
Nominal voltage 100 – 240 Volt AC 45 – 66 Hz
Operating voltage 70-265 V AC
Mains wall plug NEMA L5-30 „Twist lock“ 125 V / 30 A, and CEE 7/7 „Schuko“ 230 V / 16 A
Power supply features
Soft start / Inrush power Yes/ Max 8 Ampere
Power Factor Correction (PFC) 0.98
Regulated switch mode power supply (R.SMPS) Yes
Breaker Emulation Limiter (BEL) Configurable current threshold and breaker profile
BEL max current threshold 32 A
Power Average Limiter (PAL) Yes
Under Voltage Limiter (UVL) Yes
Mains undervoltage and overvoltage protection and mains glitch tolerance Yes
Rack rail to rear panel W: 483 mm (19″), H: 88 mm (2 U), D: 424 mm (16″)
Overall depth front-rear support D: 498 mm (19.6″)
Weight 17 kg (37 lbs)