D 20:4L 4-Channel High-Powered Amplifier 4x500W DSP + Dante 1U

Product Features

• 2,000 Watt amplifier with 4 flexible output channels and up to 1,600 Watts channel output
• Lake digital signal processing for unparalleled loudspeaker management and system control
• Integrated 8x8 channels of dual redundant Dante digital audio networking with AES67 support
• 4 x 500 Watts into 2 Ohms, 4 x 500 Watts into 2.67 Ohms, 4 x 500 Watts into 4 Ohms, 4 x 500 Watts into 8 Ohms, 4 x 425 Watts into 16 Ohms, 4 x 500 Watts into Hi-Z 25 V, 4 x 500 Watts into Hi-Z 70 V, 4 x 250 Watts into Hi-Z 100 V
• Proven and reliable IDEEA Class D Output Stage with direct drive 70 and 100 V constant voltage systems as well as low impedance
• Rational Power Management (RPM) provides total flexibility to allocate available power across all 4 output channels for most efficient use of system inventory
• Best-in-class Power Factor Correction (PFC) and switch mode power supply reduces running costs and minimizes environmental impact
• Breaker Emulation Limiter (BEL) with configurable mains current draw threshold and breaker profile to safeguard mains breakers from tripping
• Configurable Auto Power Down and Adaptive Rail Control enables real world lifetime energy savings
• Under-Voltage Limiting (UVL) for continued operation during severe mains supply voltage drops
• Dedicated on-board surveillance and load monitoring for mass notification applications
• Redundant audio inputs and on-board system surveillance for voice alarm systems
• CAFE (Configuring Amplifiers For the Environment) software for design, system planning, equipment planning, installation and commissioning
• Control and monitoring integration with 3rd-party matrix systems including MediaMatrix and Q-Sys via dedicated interfacing software
• Dedicated front-panel mute buttons for each amplifier channel with bicolour LED indication
• 4 "Lake Class" analogue input channels with Iso-Float ground isolation for reliable audio distribution
• 4 input channels of AES/EBU (AES3) digital audio supporting all standard sample rates up to 192 kHz with 24-bit resolution
• 2 Neutrik etherCON RJ-45 ports provide dual redundant Dante interfaces and remote configuration via Lake Controller and Dante Controller software
• Balanced analogue and digital audio inputs and amplifier outputs on plug-in Phoenix connectors
• Detachable and locking IEC mains cable rated at 250 V / 16 A with variety of wall plugs selectable on order
• Removable dust filter grille for increased air circulation and simple maintenance
• Rugged slimline (1U) rackmount chassis including rear support brackets for ease of installation
• Designed and engineered in Sweden

Product Specifications

General

• Processing / Network:  Lake / Dante
• Number of amplifier channels:  4
• Total burst power all channels (share among channels with RPM):  2000 W

Max output power (all channels driven)

• 2 ohms:  500 W
• 2.67 ohms:  500 W
• 4 ohms:  500 W
• 8 ohms:  500 W
• 16 ohms:  500 W
• Hi-Z 25 V:  500 W
• Hi-Z 70 V:  500 W
• Hi-Z 100 V:  250 W

Max output power single channel (all models)

• 2 ohms:  850 W
• 2.67 ohms:  1150 W
• 4 ohms:  1600 W
• 8 ohms:  1100 W
• 16 ohms:  600 W
• Hi-Z 25 V:  500 W
• Hi-Z 70 V:  1400 W
• Hi-Z 100 V:  1000 W

Amplifier output modules (all models, all channels)

• Peak output voltage:  142 Vpk
• Max output Current:  30 Apk
• Rational Power Management (RPM):  Share “Total burst power” of the product freely among channels. Any channel can scale up to the “single channel max power”
• Default voltage limitation (can be lifted with RPM configuration):  100 Vpk
• 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

Amplifier platform

• Inter Sample Voltage Peak Limiter (ISVPL):  Configurable Peak voltage threshold and profile
• Amplifier gain:  Digital configurable amplifier gain 22 - 44 dB
• Dynamic range:  > 112 dB
• Load impedance analysis:  Yes
• Temperature control:  Temperature regulated fans (front-to-rear airflow) and show must go on limitation (ATL, PTL)
• Internal Sample Rate / Data path:  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

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

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

Back panel Interface

• Analog inputs:  4 x Terminal block connectors analog input with +, - and ground
• AES inputs:  4 x Terminal block connectors analog input with +, - and ground
• Output connectors:  4 x 2 pole Terminal block connectors rated at 1000 V / 41 A (exceeding amplifier capacity) Can take up to 8 mm2 (8.2 AWG) cables
• Ethernet Ports:  2 x EtherCon RJ45 Lake Controller, Dante controller and/or DLM (3rd party protocol)
• Detachable mains cord:  Detachable locking 3-pin IEC rated at 250 V / 16 A

Front-panel user interface

• System status indication:  3 x tri-colour LED. FRAME, TEMP, PSU for device status indication
• Channel status indication:  3 x tri-colour LED per channel. Status indication separated for channel LOAD, AMP, SIGNAL status
• Mute:  Per channel touch button for MUTE control and tri-colour LED for indication
• Power:  Touch button for ON/STANDBY control and tri-colour LED for power state indication
• Select:  Touch button and LED for bidirectional device software select functionality

Physical & Dimensions

• Rack rail to rear panel:  W: 483 mm (19”), H: 44 mm (1 U), D: 425 mm (16.7”)
• Overall depth front-rear support:  D: 463 mm
• Weight:  7.9 kg (17.3 lbs)
• Finish:  Black painted steel chassis with grey painted steel front with detachable grille