D 120:4L

Introduction

D SERIES D 120:4L

The D 120:4L combines 12000 W of flexible power with the latest Lake DSP, DANTE digital audio networking and advanced system integrity monitoring.

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
Réseau audio numérique Dante à double redondance intégré 8×8 canaux avec prise en charge AES67
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 canaux d’entrée analogiques ″Lake Class″ avec isolation de masse Iso–Float pour une distribution audio fiable
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

Technical sheet

Specification

General

Processing / Network	Lake / Dante
Number of amplifier channels	4
Total burst power all channels (share among channels with RPM)	12000 W

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 channel (all models)1

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 (1 channel on D 80:4, 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 channels)
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

Analogue 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

Analogue 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 colored LED. FRAME, TEMP, PSU for device status indication
Channel status indication	3 x 3 colored LED per channel. Status indication separated for channel LOAD, AMP, SIGNAL status
Mute	Per channel touch button for mute control and bicolored LED for indication
Power	Touch button for ON/STANDBY control and bicolored 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
Mains wall plug	Selectable on order CEE 7/7 “Schuko” 230 V / 16 A NEMA L5–30 “Twistlock” 125 V / 30 A NEMA 5–15P 125 V / 15 A (D 80:4 only) NEMA 5–20P 125 V / 20 A (D 120:4 only) NEMA 6–20P 250 V / 20 A AS/NZS 3112 230 V / 15 A (Aus/Nz) BS 546 230 V / 16 A (India) C–30P 125 V / 30 A (Japan)

Power supply features

Soft start / Inrush power	Yes/ Max 8 Ampere
Power factor correction	> 0.98 pour alimentation secteur > 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

Dimensions

Rack rail to rear panel	L: 483 mm (19″), H: 88 mm (2 U), P: 424 mm (16″)
Overall depth front–rear support	D: 463 mm

Weight

15.8 kg (35 lbs)

Finish

Black painted steel chassis with grey painted steel front with detachable grille

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