Australian rock legends AC/DC delivered an iconic performance to over 100,000 fans at the RCF Arena for their ‘Power Up’ tour. The concert was enhanced by TT+ Audio’s GTX 12 line array, deployed as the delay system, ensuring unparalleled sonic clarity across the expansive venue.
The GTX 12 system extended the reach of the main setup, providing crisp, consistent audio and deep, tactile bass down to 35 Hz. With renowned engineer Paul ‘Pab’ Boothroyd managing the mix, the system achieved optimal coverage and clarity, ensuring AC/DC’s performance resonated powerfully with the audience.
The GTX 12 three-way line array module is distinguished by its high-end Precision Transducers, which deliver exceptional audio reproduction with optimized directivity. Capable of a maximum sound pressure level of 148 dB with minimal distortion, the system ensures impactful audio across large venues. The setup features a sophisticated 90° x 10° 4PATH waveguide and symmetrical three-way architecture for precise sound dispersion. The system is driven with XPS 16K amplifiers, along with advanced DSP features such as FiRPHASE and Bass Motion Control processing, which power three line array modules per unit.
Emanuele Morlini, system engineer for TT+ Audio, explains: “GTX 12 delivers full-range audio performance, allowing for powerful low-end frequencies and crystal-clear highs. We installed four arrays with 16 GTX 12 modules for the near delay towers and six arrays with 14 modules each for the far delay towers. Each array was powered using two TTR 16K racks. Six TTS 56-A double 21″ subwoofers supporting the lower part of the spectrum were installed under each line array, bringing the total to 60 subs. The system was controlled remotely from the Front of House position or wirelessly throughout the venue with RDNet.”
Lucio Boiardi Serri, TT+ Audio product specialist, adds: “The redundant audio routing featured both analog and Dante connections feeding ten CR 16-ND control racks, distributing audio via AES/EBU and analog to twenty TTR 16K racks for a total of 148 GTX 12 modules and 60 XPS 16K amplifiers. This setup ensured that every fan in the venue experienced the concert with the visceral intensity that AC/DC’s music demanded.”
