4 x 3000 W into 4 ohms Class-D power amplifier for touring applications. In just 2U rack space, this power amplifier delivers reliable high performance day after day.
It is the ideal “control center” to get the best possible performance and linearity from Harmonic Design PA systems.
It is based on a switch mode power supply specially optimized for maximum long-term performance, providing high energy for the best reproduction especially of low-frequencies.
A generously sized cooling system with temperature-controlled fans allows full load operation with minimal noise production.
The user interface consists of an LCD display with navigation buttons for visual information and quick access to key functions such as preset selection, routing matrix, delay and gain. A USB port on the front is used to connect to the proprietary hd LevelZ software suite for complete system planning, simulation, management and system tuning of all Harmonic Design loudspeakers, from 2.1 active systems to large sound reinforcement systems, and offers maximum freedom in sound shaping and speaker management.
The hd MultiDSP combines IIR and FIR filters to create perfectly linearized phase curves and significantly improved impulse responses for a more natural, transparent and realistic sound experience.
The amplifier's DSP can be reconfigured using a notebook or a power bank without a network connection and without integration into the network, and can be quickly and easily prepared for the next use.
Time-consuming reconfiguration of basic systems is no longer necessary, making it ideal for touring applications. Which is however not the only possibility, as the hd QT12 can be conveniently used for concert halls, arenas, open-air live events, clubs etc.
Main features
Technical characteristics
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