Powered Loudspeaker Management System
- 20,000 Watt Amplifier with 4 Flexible Output Channels, LAKE Digital Signal Processing and Dante Digital Audio Networking for Touring Applications.
- The PLM 20K44 Combines a 4-In, 4-Out Configuration With Industry-Standard Dante Networking, Setting The Benchmark For Powered Loudspeaker Management System.
- 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 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.
- CAFÉ (Configuring Amplifiers For the Environment) is a software suite that allows the PLM 20K44 to be easily configured and monitored in the most efficient manner possible. In addition to providing comprehensive system surveillance and configuration of amplifier features such as ISVPL and Breaker Emulation Limiter (BEL), CAFÉ also includes valuable help to save the environment. CAFÉ can accurately predict estimations of average mains current draw and generated heat, and utilizing the PLM+ Series’ innovative power supply technologies in combination with BEL the mains draw can be safeguarded to a predicted level. The end result is precise mains management and thermal control, which allows more accurate provision of mains distribution, cabling and cooling. CAFÉ reduces lifetime running costs and minimizes environmental impact, and also reduces demands on UPS systems.
- RPM Provides ultimate flexibility of power output allocation across channels to match specific load requirements, enabling more efficient use of amplifier inventory.
- PLM+ offers unprecedented levels of refined performance, double the processing power, and even better overall efficiency – proven, tested and trusted.
- LAB GRUPPEN’s dedicated integrated software provides comprehensive system surveillance, reducing running costs and minimising environmental impact.
- General
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
- Amplifier output modules (all models, all channels)
Peak output voltaje: 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
- Limiters
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
- Gain
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 voltaje: 100 – 240 Volt AC 45 – 66 Hz
Operating voltaje: 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)
- Finish: Steel painted steel chassis with black painted steel / aluminum front
