QT12ETH - 4 x 3000 W RMS on 4 ohm power amplifier, DSP, FIR filters, Ethernet, AES3, Dante

4 x 3000 W RMS on 4 ohm power amplifier, DSP, FIR filters, Ethernet, AES3, Dante

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. In addition to the 4 analog inputs, it has AES3 and Dante digital audio inputs.

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. An Ethernet port, in place of the USB present on the QT12 model, 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.

Main features                                            

• Specially optimized SMPS (power supply) with PFC for extreme continuous loads
• 4 power outputs up to 3000 W
• 4 IN / 4 OUT high-end hd MultiDSP
• Multi-stage limiter architecture (peak / RMS / thermal)
• 3.2″ LCD with navigation buttons

User benefits

• Superior audio quality thanks to MultiDSP combining IIR and FIR filters
• AES3 and Dante digital audio inputs
• Easy setup thanks to Ethernet port and LevelZ hd software
• Optimized cooling system
• SMPS power supply with PFC, to ensure maximum long-term performance

Areas of use

• Open-air live events
• Concert halls
• Arenas
• Clubs
• Touring

Technical characteristics

• Output circuit: Class-D full-bridge
• Power rating (RMS @ 1% THD): 4 x 1800 W  @ 8 ohm, 4 x 3000 W @ 4 ohm, 4 x 3000 W @ 2 ohm
• Controls: 5 x navigation buttons
• Display: 3.2″ LCD display with 4 lines of 20 characters each, LED VU meter each channel
• Connection: Ethernet port, 4 x input XLR (balanced), 4 x link XLR (balanced), AES3 and Dante digital audio inputs, 1 x AC mains connector powerCON 32 A, 4 x output speakON NL4                                      
• Chassis: 2 mm steel sheet, powder coating black, silkscreen white        
• Operating voltage: 115 V_AC: 90 - 132 V_AC 47 - 63 Hz, 230 V_AC: 180 - 264 V_AC 47 - 63 Hz
• Power supply: high efficiency, high power switching mode power supply, PFC
• Standby: 53 W                                          
• Protection circuit: switch-on delay, input limiter, overcurrent, DC-fault detection, overtemperature, short circuit,
  temperature and output current monitoring
• Dimensions (W x H x D): 48.3 x 8.89 x 50.3 cm
• Weight: 16 kg