Case Studies

Baantoren topping-out: speeches for 300 guests on a building site

2 November 2026
Around 300 guests under the concrete arches of the Baantoren in Rotterdam, with the title Baantoren topping-out

On Thursday 8 October, the Baantoren in Rotterdam celebrated its topping-out. Schell Events organised the celebration and asked us to handle the tech: around 300 guests, a few speeches and a presentation, outdoors on the building site.

A building site has concrete and not much else. So we brought everything: a 4 by 2 metre stage, 2 screens of 75 inches, 6 QSC speakers, an Allen & Heath QU-16 mixing desk and 2 wireless Sennheiser microphones.

Chairs set out under the concrete arches of the Baantoren as the first guests arrive

A second set of speakers halfway

With speeches, 1 thing counts: can the back row understand what’s being said? Turn everything up at the front and the guests nearest the stage get blasted.

That’s why a second set of speakers stood halfway. The volume at the front could come down, and the speeches were just as clear at the back.

The stage with a speaker on a stand and a 75 inch screen, ready for the first speech

Set-up, show and breakdown

Our technicians set everything up and tested it before the first guests arrived. During the celebration our technician ran the show, and afterwards we took everything down again.

Around 300 guests listen to the speeches on the Baantoren building site

Thank you for the trust, Schell Events.

Planning an event somewhere without tech?

If there’s no fixed installation, we bring everything and our technician runs the show. Call us on +31-(0)10-307 54 76 or email info@massivepro.nl. We’re happy to think along.

Frequently asked questions

What do you need for speeches to 300 people outdoors?

Speakers by the stage, a mixing desk and wireless microphones. If the space is deep, a second set of speakers halfway helps, so the volume at the front doesn’t have to go up. At the Baantoren that meant 6 QSC speakers, an Allen & Heath QU-16 and 2 wireless Sennheiser microphones.

Does a technician stay during the event?

Yes. At the Baantoren our technician ran the whole celebration, and afterwards we took everything down again.

Do you also work for event agencies?

Yes. At the Baantoren, Schell Events organised the celebration and we handled sound, screens and stage, including a technician. Call us on +31-(0)10-307 54 76 or email info@massivepro.nl.