XTA
Mighty Sound for
Mighty Men



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Northwind Recording appointed Gearhouse South Africa to team up,
design and supply the largest ever line array PA system to date
to be used in the country, for the 3 day 2009 Mighty Men Conference
(MMC 09), staged at the Shalom Farm, Greytown, KwaZulu-Natal.
Comprising 172 L-Acoustics speaker enclosures - a mix of VDOSC,
dV-DOSC, Kudo and SB28 subs - in-the-round show featured a main
stage system and two delay rings at 100 and 180 metres respectively
from the centre, calculated to cover a sound-field radius of 300
metres/600 metre diameter.
The event has become an annual pilgrimage drawing people from
all denominations and cultural groups within South Africa as well
as Australia, UK and USA.
The goal of the weekend is to gather men to pray, to worship and
unite and heal broken families. The ministry and teaching is headed
up by evangelist preacher Angus Buchan. The event has rapidly
grown over the last five years to what has now attracted over
130,000 people - all of whom needed to clearly see and hear the
onstage action.
The 360 degree audio system was designed by Revil Baselga and
modelled using Soundvision software. He chose L-Acoustics to provide
crystal clear speech intelligibility and uniform coverage across
the vast area, and this also had to accommodate a band.
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The stage had a curved roof with clear skins supplied by Gearhouse
sister company In2Structures, and was combined with a StageCo
roof grid system minus the standard roof tarps. From this, four
hangs of 8 VDOSC elements each with 2 dV-DOSC downfills were flown,
complemented with dV front fills along each of the 4 lips of the
stage.
Around the first 100 metre delay ring were 2 hangs of 8 VDOSC
a side on the east/west axis, and 4 flown hangs of 6 Kudos on
the 60 degree lines around that circumference, all rigged on 10
metre high towers.
For the outer delay ring, 4 stacks each with 6 Kudo speakers
were positioned at the north/south/east/west/orientations, ground
stacked at 6 metres high. Between each of these were 4 delays
- of 4 dV-DOSC boxes each - also at 6 metres off the ground.
The 32 SB28 subs were located at each corner of the stage, stacked
in a cardioid pattern, with 8 firing in each direction.
The show was engineered by Niklas Fairclough owner of Northwind
Recording. Niklas chose to go analogue on this with a Midas XL3
console, complete with a 16 channel extender, and an immense amount
of outboard gear - some supplied by Gearhouse and some of his
own. The outboard count included 14 Drawmer gates, 8 channels
of dbx 160SL and 6 of 160 4 channels of summit DCL200, BSS C2s,
4 EL8x Distressors, Avalon 747s and Avalon 737s and numerous effects.
FOH was co-ordinated for Gearhouse by Adriaan van der Walt.
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Monitors were run on a Yamaha MCL7 console fitted with Aviom
card, complete with 6 Sennheiser G2 IEM systems and Aviom mixers.
Twelve Clair Brothers 12AM wedges were used for vocal monitors
- 3 on each side of the stage, with a 3-way split going to the
record truck. The stage action was overseen for Gearhouse by Tom
Gordon.
L-Acoustics amplification was also utilised throughout - the
VDOSC powered by LA8 amps, with LA48s for the dvs and Kudos, 82
in total, along with 14 XTA crossovers - a mix of 224s, 226s and
426s. The amps were all networked, the LAs run over Ethernet and
controlled via LA Network, and the XTAs run via RS485 managed
with their proprietary Audiocore programme.
The time alignment was a massive challenge, and a fabulous result
was achieved by systems engineer Jacob de Wit with a little help
from SMAART.
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