D 120:4L 4-Channel High-Powered Amplifier 4x3000W DSP + Dante 2U

Product Features

• 12,000 Watt amplifier with 4 flexible output channels and up to 5,900 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 3,000 Watts into 2 Ohms, 4 x 3,000 Watts into 4 Ohms, 4 x 1,900 Watts into 8 Ohms, 4 x 950 Watts into 16 Ohms, 4 x 3,000 Watts into Hi-Z 70 V, 4 x 3,000 Watts into Hi-Z 100 V
• Proven and reliable Class-TD output stage with proprietary Intercooler high-efficiency cooling system
• Rational Power Management (RPM) provides total flexibility to allocate available power across all 4 output channels
• Best-in-class Power Factor Correction (PFC) with Current Draw Modelling reduces running costs and minimizes environmental impact
• 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" analog 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 analog and digital audio inputs and amplifier outputs on plug-in Phoenix* connectors
• Detachable Neutrik powerCON* cable rated at 250 V / 32 A with variety of wall plugs selectable on order
• Removable dust filter grille for increased air circulation and simple maintenance
• Rugged 2U rackmount chassis including rear support brackets for ease of installation

Product Specifications

General

• Processing / Network:  Lake / Dante
• Number of amplifier channels:  4
• Total burst power all channels (share among channels with RPM):  12000 W
• Approvals:  CE, ETL(ANSI/UL, CSA), PSE, RCM

Max output power (all channels driven)1

• 2 ohms:  3000 W
• 2.67 ohms:  3000 W
• 4 ohms:  3000 W
• 8 ohms:  1900 W
• 16 ohms:  950 W
• Hi-Z 70 V:  3000 W
• Hi-Z 100 V:  3000 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 (2 channels on D 120:4)
• Default voltage limitation (can be lifted with RPM configuration):  175 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

Amplifier platform

• Inter Sample Voltage Peak Limiter (ISVPL):  Configurable Peak voltage threshold and profile
• THD + N at 1 kHz and 1 dB below clipping:  < 0.04 %
• Pilot tone generation and analysis:  Yes
• Load impedance analysis:  Yes
• 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

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:  2 AES inputs (4 audio channel)
• 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 / 76 A (exceeding amplifier capacity) Can take up to 16 mm2 (6 AWG) cables
• Ethernet Ports:  2 x EtherCon RJ45 100/1000 Base-T for the Lake Controller, Dante controller and/or DLM (3rd party protocol)
• Detachable mains cord:  Neutrik PowerCon rated at 250V/32A

Front-panel user interface

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

Mains Power

• Nominal voltage:  100 - 240 Volt AC 50 - 60 Hz
• Operating voltage:  70-265 V AC 45 – 66 Hz

Power supply features

• Soft start / Inrush power:  Yes/ Max 8 Ampere
• Power Factor Correction (PFC):  > 0.98 for mains power > 400 W
• Regulated switch mode power supply (R.SMPS):  Yes
• Breaker Emulation Limiter (BEL):  Configurable current threshold and breaker profile
• BEL max current threshold:  25 A
• Power Average Limiter (PAL):  Yes
• Under Voltage Limiter (UVL):  Yes
• Mains undervoltage and overvoltage protection and mains glitch tolerance:  Yes

Physical & Dimensions

• Rack rail to rear panel:  W: 483 mm (19"), H: 88 mm (2 U), D: 424 mm (16")
• Overall depth front-rear support:  D: 463 mm
• Weight:  15.8 kg (35 lbs)
• Finish:  Black painted steel chassis with black painted steel / aluminum front