MAGIC in the AIR RIG QUICKLY and EFFICIENTLY LOOKING INTO the DIRECTIONAL Reinforcement Wizardry BEHAVIOR of SUBWOOFERS
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THE JOURNAL FOR LIVE EVENT TECHNOLOGY PROFESSIONALS AUGUST 2017 | PROSOUNDWEB.COM APPROACHES FOR TUNING A MONITOR MAGIC IN THE AIR RIG QUICKLY AND EFFICIENTLY LOOKING INTO THE DIRECTIONAL Reinforcement wizardry BEHAVIOR OF SUBWOOFERS INSIDE with the Bruno Mars world tour. REAL WORLD GEAR: COLUMN LOUDSPEAKER DEVELOPMENTS Cover Story IN THE AIR Reinforcement wizardry for the Bruno Mars world tour. by Keith Clark, photos by Steve Jennings RUNO MARS’ 24K Magic Since bursting on the scene in 2010, World Tour kicked off at Mars has already landed seven num- B the Sportpaleis in Antwerp, ber-one singles on the Billboard Hot 100, Belgium this past March, attaining the first five faster than any male making a three-month run artist since Elvis Presley. Accompanied throughout Europe before taking a brief by his band, The Hooligans, he’s known break and then moving along to North for dynamic live performances and show- America in July. There’s still a long way to manship. For their part, the band brings go for the arena (and occasional stadium) a tight, energetic complement of electric tour, easily one of the largest of the year guitar, bass, piano, keyboards, drums it makes our collaboration in optimiza- in terms of audience size and number of and horns, and they also provide backing tion and tuning a pleasure. Like me, he dates, as it next goes to South America and vocals. A highly accomplished multi-in- treats what we’re doing as art. Literally, then Asia, finishing up in Perth, Australia strumentalist, Mars adds guitar to certain he translates the science of the modern next year in late March. songs in addition to delivering lead vocals. PA into art. Suffice to say, we work very Clair Global (Lititz, PA and worldwide) well together, and that’s all for the greater is the sound company for all legs of the good of what we’re trying to present to tour, with head system tech Chris “Sully” the sold-out audiences on this tour.” Sullivan bringing a laser-like focus to fos- tering a main PA that can deliver excep- ARTICULATE PRESENTATION tional coherence that’s consistent for The main system is fronted by left-right every performance. (Sully is also a long- line arrays, each comprised of 16 Cohesion time contributor to LSI.) He works closely 12 (CO-12) modules, and they’re flanked with veteran front of house engineer by side hangs of a dozen more CO-12s Chris Rabold to create a holistic approach boxes. While the number of loudspeakers where system output and coverage are in the arrays doesn’t vary from venue to hand-in-glove with the mix. venue, Sullivan notes that the inter-an- “Simply put, Sully is the best nerd gle elements between cabinets do change and the coolest nerd, a system engineer given each site’s particular coverage crite- who absolutely knows his stuff,” Rabold ria, determined with an assist from EASE states. “He’s so on top of the design that Focus software for prediction. 14 LIVE SOUND INTERNATIONAL AUGUST 2017 www.ProSoundWeb.com Above and on the opposite page, The latest large-system PA develop- Bruno Mars and the Hooligans in mid- ment from Clair Global, the CO-12 is a concert form. At left, a talented multi- 3-way, double-12-inch, horn-loaded loud- instrumentalist, Mars adds guitar to speaker available with either 80 or 120 certain numbers, and his lead vocals degrees horizontal dispersion. The main are captured by a Sennheiser wireless arrays on this tour include ten 80-degree transmitter with an MD 5235 capsule. boxes above six 120-degree boxes, while the side hang cabinets are all 120 degrees mains – which I’m a big advocate of – is horizontal. Smaller CO-8 arrays (12 mod- to optimize the vertical timing between ules each) serve as rear hangs, extending the two (mains and subs) in spaces with coverage to 270 degrees, generally located multiple levels, like arenas. about 40 feet upstage and approximately “By co-locating the entire main sys- 110 degrees off 0. tem, we’re attaining excellent alignment Another key facet of the design is throughout the entire main listening area,” the Clair Global CP-218 (dual-18-inch) he continues. “Even up in the air with just self-powered subwoofers that fly, six six CP-218s per side, the low end is very per hang, adjacent to the main arrays. tight and closely matched with the mains. “The low end produced by the CO-12s is Some were skeptical of using so few subs, really impressive, particularly in terms but there’s low end to spare while the over- of their size,” Sullivan points out. “A all signature is super clean and super hi-fi.” primary reason we fly the subs with the Coverage in front of the stage is rein- www.ProSoundWeb.com AUGUST 2017 LIVE SOUND INTERNATIONAL 15 COVER STORY forced with CP-6 self-powered point source loudspeakers, another new Clair Global development. Offering a very low profile, they integrate seamlessly into the stage face, rendering them virtually invisible. Also on the deck are two more CP-218 subs per side for a little more “thump” in the extreme nearfield. The main system is driven by rack- mounted Lab.gruppen PLM 20K44 4-channel amplifiers. All of them incor- porate Lake digital processing, which is optimized for the specific criteria prior to each show and can be fine-tuned if necessary. As a result, there’s no need for a master DSP control unit at FOH. The main and side hangs are put within the same general processing group to enhance low-frequency coherence between all of the elements. The tuning and optimization process, able to get results that are nothing short running at 96 kHz that’s he’s utilizing to which utilizes Rational Acoustics Smaart, of incredible,” Sullivan says. “Almost from handle more than 100 inputs via three SD sees the tech crew deploying five micro- the outset, even during early production Racks on stage. “It’s a very fast console,” he phones throughout the coverage area. rehearsals, we noticed that the slightest notes. “I’m doing a million things at once, Four of the mics travel with Lectroson- EQ adjustment is quite noticeable in this so that speed is sorely needed. Plus, I can ics wireless systems that can be easily system. So it’s wide Q, contouring EQ, accommodate a lot of requests at once, moved about during the process, while with shallow amplitude cuts. If we need which is important, and again, I can do the fifth is a hard-wired measurement to do anything larger than that, it’s due it quickly. mic at FOH that’s also used as a reference to something else, not the PA.” “It’s also easy to program offline,” he during shows. adds, “and the speed at which you can “The system is highly articulate. The DELIVERING IMPACT move things around – particularly in the tricky part with any PA is attaining Veteran FOH engineer Chris Rabold is rehearsal period when things are chang- full-bandwidth coherency, and we’ve been working with a DiGiCo SD7 digital console ing – is fantastic.” Those factors are all particularly cru- cial in working with an artist like Mars, who is engaged to a very high degree. “Bruno wants everything that’s in the mix to have impact and meaning, almost to the point where every thing matters as much as the other,” Rabold explains. “So how do you take his vision and pull it back into the realm of reality, where the mix presents the desired result in delivering the impact and punch we all want? That’s the balancing act. It really keeps me on my toes.” An overview of his approach is a focus on the rhythm section and then topping it with a “hi-fi” signature, one that’s not too bright but revealing of all of the other elements happening on stage. The main PA arrays comprised of Clair Global Cohesion CO-12 arrays An outboard rack of effects gear (inter- and CP-218 subwoofers. faced with the SD7 via another SD Rack 16 LIVE SOUND INTERNATIONAL AUGUST 2017 www.ProSoundWeb.com at FOH) is comprised of tools that Rabold “With the four background singers, it Left to right: FOH engineer Chris Rabold likes to utilize on a regular basis, and he really helps clean things up,” he says. “With with his DiGiCo SD7 and outboard racks, points out that each piece is chosen more Bruno, it does the same thing in terms of followed by a closer look at what’s in the for color and tone than for actual dynamic vocal clarity, but it depends on the song racks. (By the way, he’s also employing a Digital Diablo live recording system on control. A few pieces are put in place and situation. If the mic is further away, the tour.) Next up is monitor engineer exclusively for dynamics control, but the process isn’t nearly as effective, but Ramon Morales in his world, also headed they’re often in parallel with something when he’s really on the mic, it makes a big by an SD7. Below is look at the miking else. “At times, I even employ dynam- difference. So I apply it as needed.” approach for the Leslie cabinet. ics processors to accentuate a transient rather than trying to reel it in. So the FOCUS ON THE STAGE compression aspect essentially becomes Rabold and monitor engineer Ramon a secondary function,” he adds.