Opened in 1936, the Minneapolis Armory was the costliest building in Minnesota. Until the 1970s it was used for civic events, as well as serving the state National Guard. But after several decades of neglect, the deteriorating building was nearly replaced by a jail until – in 2015 – developer Ned Abdul purchased the building, renovated it, and converted it to an elaborate event space with room for 8,400 people.

To complete the renovations and launch the reborn Armory in style, Abdul partnered with Nomadic Entertainment to organise a series of concerts celebrating the Super Bowl, with acts including Imagine Dragons, Pink, and Jennifer Lopez, as well as parties such as Sean ‘Diddy’ Combs’ Players Ball.

Minneapolis Armory

Bormann Marketing’s Jon Bormann assisted in the design of the A/V systems, networking the audio system with Dante-enabled Symetrix Radius and Prism DSPs. Advanced Light and Sound installed the video system and parts of the audio system, while Electronic Design subcontracted to handle much of the technical audio installation and DSP programming.

‘It’s a huge open space, about 300ft deep, so you have nine different delay tap zones, one approximately every 33ft,’ Bormann says. ‘In addition, there are green rooms, production rooms, executive suites, entrance halls, an outdoor rooftop patio, meeting rooms, and large halls, each of which has individually controlled zones. Everything is controlled by Symetrix DSPs feeding Lab.gruppen amplifiers, which are located in four different rooms.’

The system employs six Dante-enabled Symetrix DSPs, including two Radius 12x8 EXs, three Prism 0x0s, and one Prism 8x8, programmed using Symetrix SymVue software. Four Symetrix xOut 12 analogue output expanders deliver the additional connectivity required for the extensive system. To provide convenient volume control, 16 single-gang, Decora-style Symetrix ARC K1e wall panels, featuring rotary encoders, were installed. Power and data for the ARC wall panels are distributed with four Symetrix ARC PSe units, which connect to the DSPs using standard CAT cables.

‘Network and backup analogue cables are run to the centre of the house for the FOH left and right feeds to the house system,’ Bormann says. ‘An Attero Tech unD4I-L Dante-networked interface is installed at FOH to tap off the house mix and feed the network. Attero Tech unD610-BT and unDX210 wall plates are also located throughout the facility to route audio where needed.’

For the Super Bowl concerts, the Armory rented a front-of-house system, which connected to the network via the Attero Tech unD4I-L, a flange-mount interface that supplies four analogue mic/line inputs, converts the analogue signal to Dante, and sends it to the Symetrix DSPs. ‘The long-term plan is for the Armory to have its own front-of-house system,’ reports Bormann. ‘Meanwhile, they can bring in any rental system and easily connect it to the network using the Attero Tech box.’

Once the audio is in the Dante network, the Symetrix DSPs route it to 20 Lab.gruppen amplifiers. ‘The Lab.gruppen amps drive Tannoy delay and fill speakers throughout the facility,’ Bormann explains. ‘In all there are 100 Tannoy CMS5DCBM ceiling speakers, 20 AMS8DC surface-mount speakers, and 30 AMS5DC surface-mount speakers. The Dante network links all of the locations.’

Minneapolis ArmoryAdjusting the delay taps for the Super Bowl concerts went quickly with Symetrix’ SymVue software. ‘When the contractors set up the sound system, they set the delay taps as fast as the guy could carry his microphone and shootit,’ Bormann confirms. ‘In just 10 or 15 minutes, the Electronic Design technician used SymVue to tweak the delays in eight different zones for the Super Bowl PA set-up.’

Bormann also aided in designing the elaborate video systems, which includes a pair of 225ft-long by 2ft-high, direct-view, Delta/Vivitek LED ribbon displays running the length of the building on either side. These displays were in continuous use throughout the five days of Super Bowl events, adding significantly to the impact. Four Delta/Vivitek outdoor LED signs enhance the outside of the building. A Purelink VIP-300 A/V-over-IP system routes ten A/V sources including live camera feeds to a Vivitek laser projector in the main lobby and 40 flat-panel displays located throughout the facility.

‘Everyone worked hard for five days straight, testing and making sure everything worked for each artist,’ Bormann concludes. ‘It was exhausting, but our systems performed very well. With the Symetrix DSPs managing the fill and delay systems, we were able to achieve excellent coverage, intelligibility, and output that matched the concert level output from the main stage rental system.’

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