Lab Gruppen D-120:4L 5000W Power Amplifier

Features:

• Rational Power Management: RPM allows truly flexible allocation of the 12000 W of available power across all 4 channels of the D 120:4 to ensure the most efficient and rational use of amplifier inventory. With up to 2 channels capable of up to 5000 W without bridging (losing channel count), leaving remaining power to be allocated across other channels as required, D 120:4 is capable of meeting the demands of even power-hungry performance install applications
• Lake Processing with Dante: The robust power platform of D Series works hand-in-glove with dual integrated Lake Processing modules. Lake features such as Raised Cosine Equalization™, Limiter Max™ peak and RMS limiters, and Iso-Float™ ground isolation. AES3 digital and dual-redundant Dante networked inputs are standard for compliance in mission-critical PA/VA applications.
• Real world green credentials: The combination of unique power supply technologies providing class-leading and predictable low current draw to power output, and innovative CAFE software enable better mains management and allow substantial savings to be made on critical infrastructure such as cooling and UPS systems, lowering the overall installation and running costs of a venue audio system.
• Rational Power Management™ (RPM) – True flexibility in allocating total available power output across channel count for most efficient use of system inventory
• Up to 5000 W per channel for driving high power elements (e.g. subwoofers) on all models - up to 2 channels on D 120:4L
• Lake processing Classic/linear-phase/FIR speaker processing platform with 4 throughputs
• Input with multitude of automatic redundancy
  • 4 “Lake class” analog inputs with Iso-Float™ ground isolation
  • 4 AES inputs
  • 8 Dual Redundant Dante™ inputs
• Integration potential with 3rd party matrix systems including MediaMatrix and Q-Sys via purpose developed middleware
  CAFÉ (Configuring Amplifiers For the Environment) Software incorporating ESP (Equipment Specification Predictor) for design, system planning and equipment planning, installation and commissioning.
• Regulated Switch-Mode Power Supply (R.SMPS™)
• Breaker Emulation Limiter (BEL™) to prevent power interruption
• Under-voltage Limiting (UVL™) for continued operation despite severe voltage drops
• Best-in-class Power Factor Correction (PFC) with Current Draw Modelling
• Proven and reliable Class TD® Output Stage with patented Intercooler® high-efficiency cooling system
• Dedicated on-board surveillance & load monitoring system
• Redundant audio inputs and onboard system surveillance for mission-critical Voice Alarm applications (PA/VA)
• Detachable Phoenix plug-in audio connectors for audio I/O

Specifications:

• Model: D Series 120:4L

General (test)

• Processing / Network 1 3 4 5: Lake / Dante 2
• Number of channels: 4
• Total burst power all channels (share among channels with RP): 12000 W

Max output power all channels driven*

• 2 Ohms (per channel): 3000 W
• 2.67 Ohms (per channel): 3000 W
• 4 Ohms (per channel): 3000 W
• 8 Ohms (per channel): 1900 W
• 16 Ohms (per channel): 950 W
• Hi-Z 70V (per channel): 3000 W
• Hi-Z 70V (per channel): 3000 W

Max output power single channel (all models)

• 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
• Amplifier gain:  Digital configurable amplifier gain 22-44 dB
• Pilot tone generation and analysis: Yes
• Load impedance analysis: Yes
• Temperature control: Regulated fans and show must go on limitation (ATL, PTL)

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 - 20kHz): +/- 0.05 dB
• Inteal Sample Rate / Data path: 48 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 Etheet

Dante Audio Network

• Dante I/O: 8x8
• 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

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 k/ 10 kO hm
• THD+N (typical at 1 kHz unweighted): 0.00022 %
• THD+N (typical at 20 Hz and 20 kHz unweighted): 0.00033 %

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: 0.00003 %

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
• Etheet 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 6-20 250 V / 20 A

Power supply features

• Soft start / Inrush power: Yes/ Max 8 Ampere
• Power factor correction:  > 0.98 for mains power > 400W
• 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: W: 483 mm (19"), H: 88 mm (2 U), D: 424 mm (16")
• Overall all depth front-rear support: D: 463 mm

Weight

• Weight: 15.8 kg (35 lbs)

Finish

• Finish: Black painted steel chassis with grey painted steel front with detachable grille

Approvals

• Approvals: CE, ETL(ANSI/UL, CSA), PSE, RCM