Engineer John Delf Deploys New Soundcraft Realtime Rack For 5 Seconds Of Summer World Tour

Touring the United Kingdom, United States and Australia with Australian pop rock band 5 Seconds of Summer, front of house engineer John Delf is one of the first audio professionals to deploy Harman’s new Soundcraft Realtime Rack.

Specifically, Delf has been using his Soundcraft Vi4 digital console in conjunction with the Realtime Rack, which provides a large library of plug-ins from Universal Audio compatible with all Soundcraft Vi Series digital consoles.

“I’ve been using the Soundcraft Vi desk range for many years now so I was very excited when they announced the release of the Realtime Rack,” Delf says. “I had heard great things about the Universal Audio plug-ins, so the thought of using these in combination with the Vi4 that I was using on the 5SOS tour was a very exciting prospect.”

According to Delf, the Realtime Rack has opens up new possibilities. “The onboard dynamics and effects on the Vi range are exceptional but to be able to scan through the entire UAD catalogue and insert other extremely tasty emulations is so cool,” he notes. “I am able to put two or three different compressors and pre’s into all my important channels and switch between them, trying out which ones are best for each application.”

In addition, the Realtime Rack enables Delf to create processing and effects combinations that would not be practical if he was using outboard hardware. “At one point I was running three compressors on my kick drum microphone and it sounded great—not something that would have been practical using actual outboard gear,” he explains. “The advantage of the virtual emulations is that I can create chains that in the real world I could only ever dream of.”

“Once the Realtime Rack is cabled up to the Vi,” he adds, “it’s very easy to add the effects to your existing channels and you can still use them in combination with the onboard desk dynamics and effects. All internal connections are done though the MADI interface so once you have the ins and outs sorted in the Realtime Rack, it’s very simple to link those into the channels.”

According to Delf, the diversity of effects at his disposal gives him a virtually limitless sonic array to choose from. “A kid in a sonic sweetshop probably best describes using it,” he concludes. “The only downside is that once you have used the Realtime Rack you will really miss it next time you have to do a show without one.”

For more info on Delf’s recording studio, go to

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