Powerful Amplification: The PLM‑20K44BP delivers up to 20,000 W total and 5,900 W per channel. Its four flexible output channels handle a variety of loudspeaker loads efficiently. Rational Power Management (RPM) allows allocation of power where it’s needed most.

Lake Digital Signal Processing: Four full-featured Lake modules provide precise loudspeaker control, including EQ, delay, limiters, and crossovers. Raised Cosine MESA EQ and LimiterMax protect speakers while preserving sonic clarity. Classical and linear-phase crossovers reduce off-axis cancellations for accurate sound.

Integrated Dante Networking: The amplifier supports 8×8 dual redundant Dante channels with AES67 compatibility. Networked audio allows seamless daisy-chaining and reliable redundancy for complex touring setups. Remote control and configuration via Lake Controller simplify system management.

Flexible Inputs and Outputs: Four analog Iso-Float inputs and four AES3 digital inputs support multiple audio sources. Balanced XLR connectors and rugged binding posts ensure reliable connections. Twisted-lock detachable power cable supports 250 V / 32 A mains.

Advanced Monitoring and Safety: Onboard surveillance monitors amplifier load and system status. Redundant inputs and Under-Voltage Limiting maintain operation during severe mains drops. Fault indicators and display menus provide real-time system feedback for peace of mind.

User-Friendly Interface: Backlit front panel LCD, rotary encoder, and intuitive menu navigation allow quick setup. 100 user presets enable instant recall of system configurations. Front-to-rear airflow fans reduce noise while keeping the system cool.

Rugged Touring Design: The 2U steel chassis with removable dust filters ensures durability in demanding environments. Front-to-rear airflow and high-efficiency Class-TD cooling keep the amplifier reliable on long tours.

Specifications:

General:

• Amplifier Model: Lab Gruppen PLM‑20K44BP

• Processing / Network: Lake digital signal processing with Dante network (dual redundant, AES67 support)

• Number of Amplifier Channels: 4

• Total Burst Power: 20,000 W shared across 4 channels with RPM

Output Power:

All Channels Driven:

• 4 × 4,400 W @ 2 Ω

• 4 × 5,000 W @ 2.67 Ω

• 4 × 4,400 W @ 4 Ω

• 4 × 2,300 W @ 8 Ω

• 4 × 1,150 W @ 16 Ω

• 4 × 3,300 W @ Hi‑Z 70 V

• 4 × 4,700 W @ Hi‑Z 100 V

Single Channel Maximum (one channel driven):

• 4400 W @ 2 Ω

• 5900 W @ 2.67 Ω

• 4600 W @ 4 Ω

• 2300 W @ 8 Ω

• 1150 W @ 16 Ω

• 3300 W @ Hi‑Z 70 V

• 4700 W @ Hi‑Z 100 V

Amplifier Performance:

• Amplifier Class: Class‑TD output stage

• Peak Output Voltage: 194 V

• Max Output Current: 67 A

• Frequency Response: 20 Hz – 20 kHz ±0.05 dB

• THD + Noise: < 0.05 % (20 Hz – 20 kHz), < 0.04 % at 1 kHz 1 dB below clipping

• Dynamic Range: > 114 dB

• Channel Separation: > 70 dB

Audio Inputs & DSP:

• Analog Inputs: 4 × balanced XLR with Iso‑Float ground isolation

• Digital Inputs: 2 × XLR AES3 (AES/EBU)

• Network I/O: 2 × RJ45 (Dante dual redundant)

• DSP: Lake Processing with crossover, EQ, delay, LimiterMax peak & RMS limiters

• Internal Data Path: 32‑bit floating / 96 kHz

Protections & Monitoring:

• Protection Features: Short circuit, thermal, current average limiter (CAL), high‑frequency protection, DC protection

• Under‑Voltage Limiting (UVL) for continued operation during mains drops

• Breaker Emulation Limiter (BEL) and Power Factor Correction (PFC) reduce running costs

User Interface & Control:

• Front Display: Backlit LCD readable in daylight

• User Presets: 100 stored configurations

• Control: Rotary encoder and menu navigation

• Network Control: Via Lake Controller & Dante Controller software

Physical & Power:

• Rack Size: 2 U

• Dimensions: 483 mm W × 424 mm D × 88 mm H

• Weight: 17 kg

• Cooling: 3 fans, temperature‑controlled airflow

• Power Input: 100 – 240 V AC, 50/60 Hz, twist‑lock cable (250 V / 32 A)