Lab Gruppen D Series

Cutting-edge power, proven reliability, and unprecedented output configuration flexibility. All with seamless network integration and onboard system surveillance.

D Series is based on the same foundation of robust, high-power amplifier technologies as Lab.gruppen’s renowned PLM Series of Powered Loudspeaker Management systems – 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. 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.

Rational Power Management

True flexibility in power allocation

At the core of the D Series platform is Rational Power Management (RPM), a proprietary LAB GRUPPEN technology that allows system designers and integrators unprecedented freedom to allocate the output power available on each channel for optimum performance with specific load conditions. RPM technology also enables the integrator to minimize initial equipment costs and reduce rack space requirement since with conventional installation amplifiers, it is often necessary to “over-specify” amplifiers to meet the maximum power demand on one channel, leaving excess power capacity wasted on the remaining channels. RPM reduces costly excess capacity by allowing re-allocation of output power capacity among the four channels - with one channel on the D 10:4L capable of being significantly scaled up, leaving any remaining available power to be allocated to the other channels for less demanding loads.

Proven Lab.gruppen Technologies

Reliability and durability remain the bedrock criteria for any installation amplifier, and in this regard the D Series rigorously maintains Lab.gruppen’s industry-leading reputation. The amplifier output stages are the Lab.gruppen IntelliDrive Energy Efficient Amplifier (IDEEA). The Class D output stage is highly efficient, while the inherently bridged topology allows a multitude of the rated power output per channel for RPM and stable inherent hi-impedance operation. D Series also offers a full suite of protection features, including thermal “showmust-go-on” limiting, short circuit protection, excessive average current limiting, sustained VHF (very high frequencies) protection, DC protection and voltage- and current-clip limiting. None of the limiters introduce slow, long term gain changes that can risk altering the balance of a tuned system. A Breaker Emulation Limiter (BEL) prevents power interruption while Under-Voltage Limiting (UVL) allows continued operation despite severe voltage drops.

CAFE for Green Credentials

The D Series can be configured and monitored using the new CAFE (Configuring Amplifiers For the Environment) software suite. In addition to providing comprehensive system surveillance and configuration of RPM features, CAFE includes an innovative design aid – the Equipment Specification Predictor (ESP) – that provides tools for optimum specification of D Series units. ESP examines the system and load requirements and then supplies recommendations for the installation that include model and quantity of D Series units, heat generated, channel distribution, and current draw. The end result is accurate mains management and precise specification of cooling systems and UPS, when required.

The Power of LAKE Processing

Power and flexibility for any networked solution

All D Series LAKE versions provide extraordinary input flexibility, the legendary power of exclusive LAKE processing algorithms, comprehensive control and load monitoring via LAKE Controller, and seamless integration into Dante digital audio networks. In addition, by employing third-party middleware, D Series LAKE versions can be integrated into on other widely used networked digital matrix systems. All D Series LAKE models incorporate four full-featured LAKE Processing modules, with four discrete channels of audio throughput input to output. Audio signals are selectable from four channels of analog (each with exclusive Iso-float ground isolation), four channels of AES3 digital, and eight dual redundant Dante networked digital inputs. Input signals are individually selectable for each channel, with programmable failover to analog. The full-featured, on-board LAKE processor includes group control with Raised Cosine™ MESA EQ™ asymmetric filters to match the responses of many loudspeaker systems. LimiterMax™ peak and RMS limiters set the industry standard for loudspeaker protection and sonic transparency.

Two networking choices

The D Series platform is available in two variants. The Lake variants come with on-board Dante networking as standard, and also offer options for full integration with leading third-party networking and control systems via purpose-developed middleware. Meanwhile, the Tesira® variants integrate seamlessly into Biamp Systems’ AVB-based networked DSP platform as a dedicated, high-power output object.

“D Series is about offering freedom - freedom to use any network, any loudspeaker, any third party control system, and in any configuration. We believe it is now the most compelling choice of amplifier for large scale projects available on the market.”

Klas Dalbjorn,
Product Research Manager