LAB GRUPPEN LUCIA 240/1-70_US1 Compact Mono 240W Amplifier for High-Impedance 70 V Installation Applications (LUCIA 240/1-70_US1)

Vendor: Lab Gruppen
LUCIA 240/1-70 Incorporates Ease of Install with 240 W of Decentralised Power in a Compact Energy Star Compliant Amplifier. Great Sound, Flexibility, and Ease of Use Lab Gruppen's visionary LUCIA (Localized Utility Compact...

LUCIA 240/1-70 Incorporates Ease of Install with 240 W of Decentralised Power in a Compact Energy Star Compliant Amplifier.

Great Sound, Flexibility, and Ease of Use

Lab Gruppen's visionary LUCIA (Localized Utility Compact Intelligent Amplification) redefines AV system design by introducing unparalleled audio excellence and unprecedented adaptability. This innovation strategically allocates power, processing, control, and I/O precisely where they're needed, liberating designs from the constraints of centralized equipment rooms. In numerous AV setups demanding consistent top-tier performance, LUCIA emerges as the logical, cost-effective, and scalable solution. Its decentralized approach simplifies complexities, often eradicating the need for centralized equipment rooms, thereby reducing complications and extra expenses. LUCIA amplifiers marry a digital, firmware-driven front end with Lab Gruppen's durable, highly efficient output stage, elevating it as the epitome of compact amplifier excellence. Its remarkable blend of superior sound and unwavering reliability positions LUCIA as the foremost choice in its category, heralding a new era of amplified audio experiences.

Fits in Anywhere

The LUCIA 240/1-70 embodies a design that goes beyond engineering—it's a meticulous masterpiece crafted for swift installation and effortless setup. With its discreet wall-mount bracket, it seamlessly hides behind video displays, yet its ultra-compact form allows versatile placement. Whether nestled beside a projector or seamlessly integrated into reception counters, podiums, lecterns, or the lively ambiance of a bar area, its adaptability knows no bounds. Every connection point, meticulously designed with Euroblock screw terminals and parallel unbalanced RCA connectors, ensures seamless integration. Fine-tuning becomes an art with front-panel potentiometers for effortless level adjustments. The amplifier's advanced circuitry stands guard, shielding both the amplifier and connected loudspeakers from potential damage due to clipping, thermal overload, or extremely low line voltage, guaranteeing an unparalleled audio experience.

Integrated DSP for Enhanced Flexibility

Within the core of the LUCIA 240/1-70 resides a digital front end, boasting a 2 x 1 Mix Matrix and an extensive suite of DSP capabilities. Among these treasures lie the coveted Automatic Dynamic Loudness Contouring (ADLC™) and a rich array of EQ filters positioned both before and after the matrix. These remarkable attributes nullify the necessity for external mixers and processors in numerous applications, delivering not just unparalleled performance but also time and cost savings. Enabling a seamless journey, a software wizard stands ready to streamline the setup process, while an advanced editor empowers the offline configuration of prevalent presets. These customized configurations can be swiftly ushered into multiple units via USB, fostering unparalleled efficiency and ease in management.

Green Credentials

LUCIA amplifiers are Energy Star qualified, making them an ideal choice for installation in projects seeking energy-efficient certifications. The amplifiers automatically enter standby mode after a 20-minute period with no signal input, consuming less than 1 watt. Automatic power-up occurs within two seconds after an input signal is sensed.

Third-Party Control

Once installed the LUCIA can be controlled and monitored either via GPIO or more extensively using the RS232 interface that is included. The protocol used is open and free for anyone to implement. The list of companies supporting it is growing.

Energy Star Qualified

Our Energy Star-qualified products are a testament to the marriage of impeccable Lab Gruppen sonic performance and robust power output while upholding the stringent efficiency benchmarks of Energy Star certification standards. Through adeptly managing very low current draw during operational cycles, even at high output levels, and minimizing power consumption during non-operational phases, these products strike a harmonious balance between superior audio quality and efficient energy utilization. This remarkable synergy ensures an outstanding sonic experience while aligning with the demanding efficiency standards set by Energy Star.

ADLC for Great Sound, Everytime

Automatic Dynamic Loudness Contouring ensures a fuller and more comfortable listening experience – especially at low perceived levels. Based on industry-leading technology from TC Electronic, ADLC ensures that LUCIA makes the best of what comes into the system regardless of output gain (or “volume”).


  • Compact mono amplifier which offers 240 W for high impedance speakers on 70 V distribution lines

  • Comprehensive on-board DSP with loudspeaker processing and innovative features which enhance performance and simplifies system design and commissioning

  • Configuration software wizard for initial set-up and advanced editor for preset configuration (LUCIA connection via USB) available for Windows and Mac

  • Energy efficient with Energy Star certification for supreme green credentials and exceptionally low lifetime running costs

  • Automatic Dynamic Loudness Contouring adapts to optimize performance at any output level

  • Comprehensive DSP features with per-channel presets for high-pass filter, parametric EQ, multi-band compressor and look-ahead limiter

  • Optimized presets available for a wide range of loudspeaker models for fast configuration

  • Enhanced Bass Profile for extended LF response with small loudspeakers

  • Proprietary Auto Load Sense automatically sets VPL (Voltage Peak Limiter) for optimum performance with any connected load

  • Efficient Class-D amplifier with low distortion and minimal heat dissipation

  • Compact form factor in a half-rack, 1U chassis with supplied bracket for discreet on-wall mounting

  • Configurable GPIO port for remote control (e.g. wall panel) for channel switching, level control and integration with paging systems

  • Comprehensive circuit protection for fail safe operation, including short circuit, thermal and undervoltage protection

  • Universal power supply supports 100 - 240 V AC at 50 or 60 Hz

  • Intelligent fan control for silent operation at idle and at lower output levels

  • Front panel power and fault indication as well as per-channel signal LED and attenuation knob

  • Balanced high quality analog inputs and amplifier outputs on detachable screw terminals

  • Parallel analogue input on unbalanced RCA connectors with optimized gain for mobile and other unbalanced sources

  • Rackmount kit, pole-mount kit and wall panel kits available as accessories

Number of amplifier channels


Max total output all channels driven

240 W

Max output voltage

100 Vpeak

Max output Current

7 Arms

70 V

240 W

100 V 1

120 W

16 ohms

240 W

Signal to Noise Ratio

>100 dBA

Gain, Sensitivity and Limiters

100 Vpeak

Sensitivity, balanced input

4 dBu / 1.23 Vrms

Sensitivity, RCA input

-2 dBu / 0.62 Vrms

Input headroom for clip, balanced 2

12 dBu / 3.09 Vrms

Input headroom for clip, RCA 2

6 dBu / 1.55 Vrms

Connectors and Buttons
Input connectors (per ch.)

3 - pin detachable screw terminals, electronically balanced

Input connectors (ch. 1 & 2)

Unbalanced RCA type

Output connector

2 - pin detachable screw terminal


2 channels of voltage sense type. 4 pins in a detachable screw terminal. Default functionality is output level for GPI1 and wake up from stand by for GPI2.

GPO (power state output) 3

Contact closure type, 2 pins in a detachable screw terminal Default for external monitoring of fault/protection/power off


For firmware update and configuration of the signal processing and altering the default functions of the GPI ports

High pass filter

This filter is in series with the other filters in the DSP and it is controlled with switches on the back. Settings OFF / 50 Hz / 80 Hz.

Level adjustment (per input)

Front panel potentiometer, detented from -inf to 0 dB


Can be controlled and monitored by third parties via RS232 using both the GPI pins

Processing Features
Input processing block 4

4 EQ sections per input

Mix matrix routing block 4

2 in - 1 out mix-matrix controllable from GPI

Output processing block 4

4 EQ sections per output (presets available for many loudspeakers) User adjustable output look ahead limiter ADLC (Adaptive ISO 226 compensation)

Latency from any input to any output

User adjustable from 9.15 to 137 ms

Nominal voltage

100 – 240 VAC

Operating voltage

85 – 265 VAC

Standby consumption

<1 W

Mains connector

IEC inlet


One fan, no filter required, front to rear airflow, temperature controlled speed. Can stay off if the sustained power average stays below 12 W and the ambient temperature is below 25 C

Auto mode

The power state is controled automatically by the audio signal


W: 216 mm (8.5”), H: 44 mm (1 U), D: 280 mm (11”)


1.9 kg (4.2 lbs)


Black aluminum front and black steel chassis