Over 120 Powersoft K10 amplifiers and M-Force powered subwoofers drive audio for Super Bowl 50 Halftime Show posted: 16/02/2016
The Super Bowl 50 halftime show featured over 120 Powersoft K10 amplifiers
Powersoft, a world-leading manufacturer of professional power amplifiers, delivered pristine and reliable audio to a crowd of 71,088 gathered for Super Bowl 50 at Levi's Stadium last week, with over 120 of its K10 high-performance power amplifiers and eight custom subwoofers featuring Powersoft M-System drivers. The pre-game and halftime entertainment portions of the event - powered solely by Powersoft amplifiers - featured energetic performances by Lady Gaga, Coldplay, Beyonc and Bruno Mars, and reached no less than 111.9 million viewers worldwide.
Elite audio services supplier, ATK Audiotek, provided system integration and audio services for the landmark event, creating an agile audio solution that consisted of 18 mobile speaker carts - each equipped with JBL VT4889 line array elements, JBL VT4880A subwoofers and Powersoft K10 amplifiers. The speaker carts were rolled onto the field for the pre-game, halftime and post-game portions of the event.
Pre-game programming included performances of The Star-Spangled Banner, America the Beautiful and the Walter Payton award presentation; the much anticipated halftime segment included electrifying performances by Coldplay, Beyonc and Bruno Mars; the post-game programming featured the presentation of the Vince Lombardi trophy and Most Valuable Player award.
Halftime show set up during Super Bowl 50
Coming Through in the Clutch
For the halftime performances, ATK Audioteks team had just six minutes to roll out and set up the entire audio system, with the stage itself consisting of 28 individual pieces in addition to the loudspeaker carts that had to be rolled into position on the perimeter of the field. For the duration of the entertainment programming, the Powersoft amplifiers - drawing power exclusively from generators - performed flawlessly, enabling an energetic and memorable experience for fans in the stadium and television audiences at home.
During the event planning processes, efficiency and footprint were key concerns, as Kirk Powell, Systems Designer of ATK Audiotek explains: For events of this size, there is enormous power usage so efficiency is absolutely key. The Powersoft K10s minimise our power draw and provide maximum output efficiency, he says. The small size of the amplifiers also significantly reduces truck weight and transportation expenses. We had five packed semi tractor trailers carting gear up to the stadium, and every bit of space counted, he adds.
The existing stadium PA system was augmented with additional low-end reinforcement for mid-game music bumpers, referee announcements, and announcer calls
The compactness of the Powersoft amplifiers - which occupy approximately one third the space of conventional amplifiers - helped enable a smooth transition during set up from game time to halftime. They were able to set up and tear down the K10s really fast - and there was absolutely no shortage of power in the stadium, says Entertainment FOH engineer Toby Francis. Francis was impressed with the sound and performance of the K10s, in what was one of the most energetic halftime performances in history: The K10s really held it all together, said Francis. The low end was tight as it could be, and the overall response was really good for a stadium like this.
James Berry, monitor engineer for Beyonc , was also pleased with what he heard: The wedges sound incredible on the Powersoft, he states. The amplifier can make or break the sound of a speaker, and these amps sound really great. Plus it was amazing how fast they were able to set up and tear down the system.
The entire audio during the entertainment portion of Super Bowl 50 was powered by Powersoft amplifiers
M-Force Tackles the Low-End
In addition to the full service sound system ATK provided for the entertainment elements, the existing stadium PA system was augmented with additional low-end reinforcement for mid-game music bumpers, referee announcements, and announcer calls. When the speakers were not out there and we were in game mode, they wanted subwoofers to make gametime more exciting - so we had eight locations of Powersoft subs set up permanently against the audience wall on the field, explains Pat Baltzell, Sound Designer and FOH mix engineer for ATK Audiotek. These helped us get an extra half-octave of audio, reaching the super-low frequencies, between 25 and 35 Hz. By using the M-Force loaded cabinets with 30 cones, the ATK team was able to leverage roughly three times the power of conventional drivers, the subwoofer count on the field from 24 to eight.
The M-Force powered subwoofers were positioned against the audience wall on the field, four on each side, in evenly spaced intervals. Each cabinet, measuring approximately 3.5' x 4.5 x 3.5', was powered by a single Powersoft K10 amplifier. The M-force and K10 combination delivered exactly the low end we were looking for, perfectly complementing the house PA, Powell says.
Beyonc performs at the halftime show, Super Bowl 50
Championship-Grade Power
To pull off an event like Super Bowl 50, which has incredibly sophisticated power requirements, efficiency is the name of the game. They have to bring in so much extra power for these entertainment elements - including the lighting and the sound, explains Baltzell. They asked us to be as efficient as we can, and in terms of a watt in and a watt out, Powersoft is the most efficient amplifier in the world. By using Powersoft, we are able to substantially reduce our power consumption and create big savings; truckloads are smaller, cartage is easier and of course the overall power draw is smaller. All of these efficiency elements come in
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Over 120 Powersoft K10 amplifiers and M-Force powered subwoofers drive audio for Super Bowl 50 Halftime Show posted: 16/02/2016 
