Back to Top

Lab Gruppen D 40:4L - 4000W Amplifier with 4 Flexible Output-Channels, Lake Digital Signal Processing and Digital Audio NetworkingLab Gruppen D 40:4L - 4000W Amplifier with 4 Flexible Output-Channels, Lake Digital Signal Processing and Digital Audio Networking

SKU: 0107-AAE

Be the first to write a review!

Available - Item in Stock

£4,800.79

£4,000.66 (Ex VAT)

The Lab Gruppen D 40:4L Combines 4000 W of Flexible Power with the Latest LAKE DSP, DANTE Digital Audio Networking and Advanced System Integrity Monitoring. The D 40:4L is based on the same foundation of robust, high-power amplifier technologies as the renowned PLM Series – an amplifier platform with a proven record of reliability and sonic performance on the world’s most grueling concert tours and in high-profile, large-scale installations.

With the D 40:4L, those same core technologies have been updated and refocused to provide the ultimate solution for the most demanding digitally networked installed sound applications – in stadia, arenas, theme parks, performing arts centers, racecourses and other large commercial sound installations.

In addition to legendary LAB GRUPPEN reliability and sonic excellence, the D Series incorporates newly refined outputs stage technologies along with installation-targeted hardware and software features that optimize amplifier system design and configuration. Together, these new technologies allow systems integrators to minimize both initial equipment costs and end users’ long-term energy consumption.

• 4,000 Watt amplifier with 4 flexible output channels and up to 2,000 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 800 Watts into 2 Ohms, 4 x 1,000 Watts into 2.67 Ohms, 4 x 1,000 Watts into 4 Ohms, 4 x 1,000 Watts into 8 Ohms, 4 x 700 Watts into 16 Ohms, 4 x 500 Watts into Hi-Z 25 V, 4 x 1,450 Watts into Hi-Z 70 V, 4 x 2,000 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" 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 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

Technical Specification

  • GENERAL
  • Processing / NetworkLake / Dante
  • Number of amplifier channels4
  • Total burst power all channels (share among channels with RPM)4000 W
  • MAX OUTPUT POWER (ALL CH's DRIVEN)
  • 2 ohms800 W
  • 2.67 ohms1000 W
  • 4 ohms1000 W
  • 8 ohms1000 W
  • 16 ohms700 W
  • Hi-Z 25 V500 W
  • Hi-Z 70 V1000 W
  • Hi-Z 100 V1000 W
  • MAX OUTPUT POWER (SINGLE CHANNEL)
  • 2 ohms850 W
  • 2.67 ohms1150 W
  • 4 ohms1750 W
  • 8 ohms1350 W
  • 16 ohms700 W
  • Hi-Z 25 V500 W
  • Hi-Z 70 V1450 W
  • Hi-Z 100 V2000 W
  • AMPLIFIER OUTPUT MODULES (ALL CHANNELS)
  • Peak output voltage150 Vpk
  • Max output current30 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)145 Vpk
  • Protection featuresCurrent 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)Digital configurable amplifier gain 22 - 44 dB
  • Pilot tone generation and analysisYes
  • Load impedance analysisYes
  • Temperature controlTemperature 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> 112 dB
  • Channel separation (Crosstalk) at 1 kHz> 70 dB
  • Frequency response (1 W into 8 ohm, 20 Hz - 20 kHz)+/- 0.05 dB
  • Internal sample rate / Data path96 kHz / 32 bit floating point
  • Product propagation delay AES 96 kHz / analog input1.61 / 1.68 ms
  • LAKE PROCESSING
  • Loudspeaker processingUp to 4 modules of Classic/linear-phase/FIR crossover, EQ, delay, LimiterMax™ - peak and RMS limiters
  • System tuningGroup control with Raised Cosine™ MESA EQ™ asymmetric filters
  • Input redundancy / MatrixAutomatic 4 level input redundancy / 4 input mixers
  • System integrationComprehensive 3rd party protocol over UDP Ethernet
  • DANTE AUDIO NETWORK
  • Dante I/O8 x 8 (shared with AES67)
  • Network topology / redundancyFlexible topology / Supports Daisy-chained and Dual redundant networks
  • Sample rates / transport48, 96 kHz / Uni + Multicast
  • Network latency0.25, 0.5, 1.0, 2.0, 5.0 ms
  • AES67 AUDIO NETWORK
  • I/O8 x 8 (shared with Dante)
  • Network topology / redundancyFlexible topology / Supports daisy-chained networks
  • Sample rates / transport48 kHz / Multicast
  • Network latency2 ms
  • ANALOGUE INPUTS
  • Inputs4 high quality inputs with Iso-Float™ ground isolation
  • Maximum input / digital reference+ 26 dBu / +21 dBu
  • Sampling rate / resolution96 kHz / 24 bit
  • Input impedance balanced / unbalanced20 / 10 kOhm
  • THD + N (typical at 1 kHz unweighted)0.00022 %
  • THD + N (typical at 20 Hz and 20 kHz unweighted)0.00033 %
  • AES INPUTS
  • Inputs4 AES inputs
  • Supported sample rates / resolution44.1, 48, 88.2, 96, 176.4, 192 kHz / up to 24 bit
  • Sample rate conversion THD + N 20 Hz - 20 kHz unweighted0.00003%
  • BACK PANEL INTERFACE
  • Analog inputs4 x Terminal block connectors analog input with +, - and ground
  • AES inputs4 x Terminal block connectors analog input with +, - and ground
  • Output connectors4 x 2 pole Terminal block connectors rated at 1000 V / 41 A (exceeding amplifier capacity) Can take up to 2 8mm (8.2 AWG) cables
  • Ethernet ports2 x EtherCon RJ45 Lake Controller, Dante controller and/or DLM (3rd party protocol)
  • Detachable mains cordDetachable locking 3-pin IEC rated at 250 V / 16 A
  • FRONT PANEL USER INTERFACE
  • System status indication3 x tri-color LED. FRAME, TEMP, PSU for device status indication
  • Channel status indication3 x tri-color LED per channel. Status indication separated for channel LOAD, AMP, SIGNAL status
  • MuteTouch button for ON/STANDBY control and tri-color LED for power state indication
  • PowerTouch button for ON/STANDBY control and tri-color LED for power state indication
  • SelectTouch button and LED for bi-directional device software select functionality
  • MAINS POWER
  • Nominal voltage100 - 240 V AC 50 - 60 Hz
  • Operating voltage70 - 265 V AC 45 - 66 Hz
  • POWER SUPPLY FEATURES
  • Soft start / Inrush powerYes
  • Power factor correction> 0.98 for mains power > 300 W
  • Regulated switch mode power supply (R.SMPS)Yes
  • Breaker Emulation Limiter (BEL)Yes
  • BEL max current threshold15 A
  • Power Average Limiter (PAL)Yes
  • Under Voltage Limiter (UVL)Yes
  • Mains undervoltage and overvoltage protection and mains glitch toleranceYes
  • PHYSICAL
  • DimensionsW: 483 mm (19”), H: 44 mm (1 U), D: 425 mm (16.7”)
  • Weight8.3 kg (18.3 lbs)
  • FinishBlack painted steel chassis with grey painted steel front with detachable grille
  • ApprovalsCE, ETL (ANSI/UL, CSA), PSE, RCM, BIS, CCC

Shop With POLAR

  • PAYMENT

    Secure (SSL encrypted) payments with MasterCard, Visa, American Express and PayPal.

  • SHIPPING

    Standard 2-3 Day, Next Day and Saturday delivery options available.

  • EXCLUSIVITY

    As the exclusive UK distributor to some of the world’s top brands, you can trust that our products are authentic and direct from the manufacturer.

CONTACT US