Used Lab Gruppen D 120:4T/Ta
Used Lab Gruppen D 120:4T/Ta units offer a 12,000 Watt, four-channel professional amplifier with full onboard Biamp Tesira DSP integration and integrated Ethernet AVB, making second-hand examples a compelling choice for large-scale installed audio and voice alarm systems. Browse the used Lab Gruppen D 120:4T/Ta listings currently available and scroll down to find the right unit for your project.
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Lab Gruppen D 120:4T/Ta specifications
| Brand | Lab Gruppen |
| Segment | Audio |
About the Lab Gruppen D 120:4T/Ta
The Lab Gruppen D 120:4T/Ta is a 12,000 Watt amplifier featuring four flexible output channels capable of up to 5,900 Watts per channel, four analog inputs, and full integration within the Biamp Tesira DSP matrix environment for audio, control and monitoring. Integrated Ethernet AVB enables seamless digital audio transport from Tesira servers. Output power spans 4 x 3,000 W into 2 or 4 Ohms, 4 x 1,900 W into 8 Ohms, 4 x 950 W into 16 Ohms, and 4 x 3,000 W into 70 V or 100 V Hi-Z loads. The Class-TD output stage uses a proprietary Intercooler cooling system, while Rational Power Management (RPM) allocates power flexibly across all channels. Additional features include Breaker Emulation Limiter (BEL), Under-Voltage Limiting (UVL), Power Factor Correction (PFC), redundant audio inputs, and dedicated surveillance for mass notification and voice alarm applications. Configuration is handled via CAFE software.
Lab Gruppen D 120:4T/Ta — buyer FAQs
What is the Lab Gruppen D 120:4T/Ta and what is it designed for?
The Lab Gruppen D 120:4T/Ta is a 12,000 Watt, four-channel professional power amplifier built for large-scale installed audio, mass notification, and voice alarm systems. It integrates fully within the Biamp Tesira DSP matrix environment, handling audio, control and monitoring from a single device, and supports redundant audio inputs alongside dedicated on-board surveillance for life-safety applications.
Who makes the D 120:4T/Ta and where does it sit in their range?
The D 120:4T/Ta is made by Lab Gruppen, a Swedish manufacturer founded in 1979 and dedicated to professional power amplifiers for touring and installed sound. It is part of the Music Tribe group. Within the Lab Gruppen range, the D 120:4T/Ta occupies the high-power installed-sound tier, distinguished by its onboard Biamp Tesira integration and Ethernet AVB transport rather than standalone analogue operation.
What output power does the D 120:4T/Ta deliver across different load impedances?
The D 120:4T/Ta delivers 4 x 3,000 Watts into 2 Ohms, 4 Ohms, 70 V Hi-Z, and 100 V Hi-Z loads, 4 x 1,900 Watts into 8 Ohms, and 4 x 950 Watts into 16 Ohms. Individual channel output can reach up to 5,900 Watts depending on how Rational Power Management allocates the total 12,000 Watt power budget across all four channels.
How does the D 120:4T/Ta protect the mains supply and manage energy consumption?
The amplifier includes a Breaker Emulation Limiter (BEL) with a configurable mains current draw threshold to prevent circuit breakers from tripping, Power Factor Correction (PFC) with Current Draw Modelling to reduce running costs, Under-Voltage Limiting (UVL) for continued operation during mains voltage drops, and a Configurable Auto Power Down function for long-term energy savings.
What should I check when buying a used Lab Gruppen D 120:4T/Ta?
Confirm the unit powers on fully and that all four output channels are functional, as faults on individual channels can be costly to repair. Check that Tesira and CAFE software integration is working and that Ethernet AVB connectivity is intact. Verify whether a flightcase or rack hardware is included, as these vary between units. Used listings on this page are covered by a 21-day warranty for major functional faults; full detail is in the buying guide at 10kused.com/used-av-equipment-guide/.
