Lab Gruppen | Technologies

Introduction

Our Dedicated Install and Touring Amplifier Platforms Incorporate Radical New Thinking to Deliver Real-World Benefits in Performance, economy and User Experience.

Rational Power Management

RPM Allows Truly Flexible Power Allocation Across All Channels to Ensure the Most Efficient and Rational Use of Total Amplifier Inventory.

ISVPL (Inter-Sample Voltage Peak Limiter)

ISVPL Precisely Tailors Each Output for Any Type of Load. No Matter What the Loudspeaker Cabinet Type or the Arrangement of Transducers.

BEL (Breaker Emulation Limiter)

To Assure Uninterrupted Service When Pushed to Extremes, the Breaker Emulation Limiter (BEL) Algorithm Prevents Tripping of Mains Breakers and Enables Defined Power Requirements.

Under-Voltage Limiting (UVL™)

When Mains Voltage Sags Under Heavy Load and If Long Mains Cables are Used, the UVL Reduces the Output Power Before the Mains Voltage Becomes Critical for Operation. For low mains voltage applications the all new Under-Voltage Limiting allows the amplifier to stay on even in extreme conditions. When mains voltages sag under heavy load and if long mains cables are used, the UVL reduces the output power before the mains voltage becomes critical for operation.

In combination with BEL, UVL allows for high power without tripping breakers regardless of what the mains voltage is. The new power supply design allows bursts to last longer without sagging rails

True PFC (Power Factor Correction)

Unique Power Factor Correction (PFC) Utilizing Lab Gruppen’s Mains Current Draw Modeling Algorithm (CDM™

Class TD Output Stage

Delivering the High Efficiency of a Class D Design With the Sonic Purity of a Class B Design Amplifier.

INTERCOOLER® Cooling System

Eliminates “Heat Island Effect” and Ensures All Output Devices Are Cooled Equally at Same Rate – Delivering Improved and Sustained Performance.

Lake Processing

The Robust Power Platform of D Series and PLM Series Works Hand-In-Glove with Dual Integrated Lake Processing Modules with Features Such as Raised Cosine Equalization, Limiter Max, Peak and RMS Limiters, and ISO-Float Ground Isolation.

Mesa EQ

Mesa EQ gives sound engineers a faster, more effective optimization tool—one that can truly match the asymmetrical responses of loudspeakers.

Ideal Graphic EQ

Ideal Graphic EQ is not implemented in the traditional manner, but instead uses Raised Cosine Filters that provide better selectivity than conventional filters. Ideal Graphic EQ filters sum to flat, thus providing a true response equalizer. This results in controls that provide exactly what is expected by the end user.

Raised Cosine Equalization

Raised Cosine Equalization is the foundation underlying Ideal Graphic EQ™ and Lake Mesa EQ™, the two revolutionary EQ interfaces provided by the Lake Processor.

The graphic above shows boost shapes typical of raised cosine (blue) and conventional (red) equalization. Note the increased selectivity of the raised cosine shape.

The development of the Lake Mesa EQ was a significant advance in EQ technology. While other processors provide standard symmetrical boost and cut functions, the Mesa EQ offers asymmetric filtering, with the ability to separate the sides of a parametric section, change center frequencies, and independently adjust slopes.

The Mesa EQ gives sound engineers a faster, more effective optimization tool—one that can truly match the asymmetrical responses of loudspeakers.

Linear Phase Crossovers

Linear phase crossovers are another feature separating Lake Processing technology from ordinary processors. Linear phase crossovers can match traditional crossover slopes, such as 24 dB per octave and 48 dB per octave, when desired. But they are also capable of transition slopes exceeding 180 dB per octave.

These slopes offer dramatic benefits when applied to various types of loudspeaker arrays. Off-axis lobing and cancellation between loudspeakers are dramatically reduced. Greater control over slopes means that different speaker cabinet types can be more easily mixed and matched. Also, a loudspeaker’s impulse response is significantly improved, providing a time-coherent wavefront.

Additionally, improvements of up to 3 dB or more in acoustic output power may be expected in some frequency ranges.

LimiterMax™ & Iso-Float™

LimiterMax Loudspeaker Protection

LimiterMax is a significant advance in limiter technologies, combining an exclusive true-RMS limiter, an advanced peak limiter capable of instantaneous attack time (adjustable by the user), and additional sophisticated signal processing.

Iso-Float Ground Isolation: A Better Way to Avoid Ground Loops

Iso-Float technology combines the benefits of transformer-coupled isolation with the advantages of clean, direct-coupled inputs.

In the Lake processor input section, the audio converters are galvanically isolated, and not connected to the main ground. High-speed transformers and opto-isolators create a barrier between the processor and possible grounding aberrations from the outside electrical environment.

Additionally, you can change the grounding of any input or output remotely through the Lake Controller software interface.

While isolation transformers are typically an expensive option for many processors, Iso-Float is standard in the LM 26 and PLM Series units.

Networking

Offering Unique Integration Potential with Implementations of Both Dante and AVB Networked Digital Audio.

System Integrity Monitoring

Our Flagship D Series and PLM Series Platforms Benefit From Class-Leading System Integrity Monitoring Capabilities.

LoadPilot

A LoadPilot function – facilitating the generation and real-time monitoring of an inaudible test signal within the PLM Series and D Series (Lake-variant models only) - is designed to support mission-critical PA/VA installations that require 24/7 monitoring of the connected loudspeakers, typically with fault detection within 45s.

This means that any fault within a large scale system can be immediately notified, located and rectified. This implementation ensures that both D Series and PLM Series meets the most stringent system requirements for large-scale mission-critical PA/VA applications.

LoadSmart

LoadSmart is a comprehensive system testing tool that can quickly and accurately isolate problems such as miss-wired arrays, open or damaged voice coils, or developing problems such as rubbing voice coils that may lead to failure.

The LoadSmart verification test takes seconds, and the test signal cannot damage connected loudspeakers. The test can be run before the system is used to verify readiness, and then again after a performance when the audience is not present. Problems that may have developed during use can be isolated to facilitate preventive maintenance.

LoadLibrary

LoadLibrary is a unique database that provides precise descriptions of loudspeaker characteristics under controlled conditions of applied signal and ambient temperature. LoadLibrary data is created by loudspeaker manufacturers, or in association with major users, using carefully defined Lab Gruppen test procedures. LoadLibrary data is specific for each discrete component of the connected load: a single loudspeaker cabinet: or the discrete drivers(s) as internally connected in two-, three-, or four-way systems.

Regulated Switch Mode Power Supply

Lab Gruppen pioneered the use of switch mode power supplies in power amplifiers, and the latest generation of this technology plays a key role in enabling the unrivaled potential and capabilities of the D Series.

Auto Load Sense (ALS)

Detecting Impedance and Self Configuring for Optimal Performance.

Auto Load Sense technology detects the impedance load on each channel and self-configures for optimal performance, allowing it to deliver maximum power output on all loads from 2 – 8 ohms.

IntelliDrive Energy Efficient Amplifier

Lab Gruppen’s IDEEA Architecture Facilitates Energy Star 3.0 Compliance by Combining Net Operating Efficiency of Greater Than 80%

IDEEA (IntelliDrive Energy Efficient Amplifier) technology is based around a patented Class D output stage producing high power levels with very low distortion while drawing minimal mains current. Lab Gruppen’s IDEEA architecture facilitates Energy Star 3.0 compliance by combining net operating efficiency of greater than 80% with an auto-power-down feature. After 20 minutes with no input signal present, the amplifier automatically switches to standby mode – reducing power consumption to less than 1 W – and switches back on when an input signal returns. GPIO facilities enable third-party systems to remotely control and monitor power state via contact closure.

Automatic Dynamic Loudness Contouring

Based on Industry Leading Technology from TC Electronic, ADLC Ensures a “Fuller” and More Comfortable Listening Experience.

IntelliDrive Controller

Intuitive Software Control for a Powerful DSP

CAFÉ Software

CAFE with ESP: Integrated Software for Fast System Configuration and Surveillance

NomadLink

NomadLink Network

The NomadLink network provides remote monitoring, control, and power sequencing functions for multiple C Series or FP+ Series amplifiers.