BG Events Deploys Large Wavefront Precision Hang For BSW At Papp László Arena

Budapest-based BG Events has rolled out what is believed to be the largest single-show deployment of Martin Audio's Wavefront Precision series, equipping BSW's #BSW20 performance at the Papp László Arena with 120 WPL/WPC/WPS line-array elements and a low-frequency package that specified 36 SXH218 subwoofers.

Marking 20 years since the group formed in 2006, the #BSW20 tour underscores BSW's rise from Hungary's underground hip-hop scene to the top tier of the country's live circuit, filling stadium-scale venues.

BG Events' deep familiarity with the country's flagship arena helped secure the project. "We hadn't worked with the band before, but the production team were aware that we had delivered numerous shows at the arena and were very familiar with the venue." Having long toured with Martin Audio MLA, the company refreshed its inventory to the next-generation Wavefront Precision platform in May 2025.

That shift paved the way for a WPL-led system. "When we talked with the BSW team about using WPL rather than MLA, they were very happy with it," notes Mazsi. "The Martin Audio WPL is very similar in character, and also has zero feedback to the stage. This makes bands and sound engineers happy because when they come from rehearsal and start sound checking, nothing sounds different in their ears. I'm personally also very happy with the WPL sound image."

The venue itself demanded careful planning, not only for its long throws but also its offset seating geometry. "The first challenge is definitely distance," Mazsi explains. "The arena is 120m long from the stage front to the last seats. But oddly the building is also asymmetrical, with two seating tiers on the left and three on the right."

To deliver even coverage, BG Events designed main hangs of 18 WPL per side, run at one-box resolution. Asymmetric outfills addressed the differing balcony heights, with 12 WPL on the left and 14 on the right. First delay positions added a further eight WPL per side, while second delays deployed eight WPC per side to reach the furthest seats. For the nearfield, 14 WPS units served as front fills in 4 x 3 and 1 x 2 stacks, with another six WPS per side flown as sidefills. "All the boxes in the Wavefront family work so well together – the filters, amplifiers and DSPs are the same, and the characters are all the same," Mazsi confirms.

Although 36 SXH218 subs were specified for the production, 32 were ultimately used for bass reinforcement on the night. Two flown arrays of six were positioned 1m behind the mains, with 20 ground-stacked in cardioid pairs (bottom cabinet reversed). "We used the '40ms left-right cancellation' for the flown subs. It worked really well in this venue," describes Mazsi. "The ground-stacked ones had 70cm spacing and opened 60 degrees by time. The flown subs were powered by amps in bridge mode, whilst the ground stacks used one amp channel per box."

Amplification across the rig came from iKON iK42 units. "The iK42s have a separate DSP for each amplifier channel, which is very convenient – you can set any sub timing or front fills," says Mazsi. "The large hangs work well with six to nine amps, and if you were to have any issues, you can just hot-swap any of them, so you don't lose the whole array."

Faster WPL rigging and simplified cabling proved a time-saver on site. "We prepared the correct length of breakouts in advance, then it was very simple to hang four WPLs cart by cart. We configured the setup and loaded the presets to the iK42s in the warehouse."

The result met expectations at front of house. "FOH engineer Péter Agárdi was very happy with the result," Mazsi confirms. "The show ran from 94 dB up to 100 dB, with excellent consistency and clarity throughout."

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