When it comes to hosting a successful event, great content and planning are only part of the equation: your audio-visual setup plays a huge role in how your audience experiences the day. Whether it’s a corporate presentation, community fundraiser, or product launch, poor AV can lead to distractions, delays, or a less-than-professional impression.
Unfortunately, many common AV issues are easy to make but just as easy to avoid with the right preparation. In this post, we’ll break down the most frequent AV mistakes to avoid, so your event runs smoothly and leaves the right impression.
1. Underestimating Sound Requirements

Built-in speakers on computers, cell phones, tablets, and even TVs are not powerful enough to broadcast sound to large crowds. While built-in speakers work for solo viewings, they do not work well enough for corporate events. You will need at least one external speaker that can connect to your devices and broadcast sound across the venue.
You also don’t want to be using low-quality microphones that do not project voices well. Bad mics mixed with bad speakers sounds like a recipe for disaster! Get a good quality handheld microphone or lavalier mic that can connect to your speakers and is designed for large spaces. Account for the size and the acoustics of the room when selecting a microphone and speakers: the larger the space and the more it echoes, the more powerful your sound system will need to be.
2. Not Doing a Tech Rehearsal

Skipping a run-through before your event can result in AV mistakes to avoid. You want to be prepared for any reasonable mistakes that could happen. Mistimed slides, dead mics, or lighting issues often go unnoticed until it’s too late. Schedule a time to test all equipment and media files beforehand, and for presenters or performers to practice their lines.
3. Choosing the Wrong Screen or Projector

If you are showing a slideshow or video at your event, you’ll want a projector and a projector screen. Some venues may already be equipped with projectors and screens, or you can rent them. However, projectors come in different sizes and power levels. If you have a large crowd, you don’t want the projection to be so small that some people can’t see it.
You’ll also want to avoid the projector being set too dimly for the lighting of the room, as well as poor screen placement or views. These things can be tested in a run-through before the event starts. Try different settings, modes, and placements to see what works best.
4. Poor Cable Management

With all this equipment, you’ll have lots of cables. One of the biggest AV mistakes to avoid is poor cable management. Tangled cables can lead to trip hazards and broken equipment. Exposed wires can also look unprofessional if visible to guests. You can tape down or hide cables with painters or gaff tape, or use wireless options where possible. Wrap up cables nicely when not in use to prevent damage and tangles.
5. Incompatible Equipment or Media

Are you creating or exporting a video or presentation? Make sure it is exported in the proper format for viewing. Oftentimes, this will just mean an MP4 or H264 file, but check your device’s compatibility. Make sure the video can play on your screen or projector before the event starts.
If you have guest speakers from outside your organization, they will also need to make sure any files they bring are compatible. Speak with presenters beforehand to ensure they are on the same page as your team when it comes to usable file types. Bring backup USB sticks or harddrives if needed.
Set Your Event Up for AV Success

Audio-visual issues can quickly derail even the most carefully planned events, but the good news is that most of these problems are entirely preventable. By taking time to properly assess your sound needs, plan a tech rehearsal, choose the right gear, and stay organized, you’ll ensure your event runs smoothly and leaves a lasting, professional impression on your audience.
Whether you’re organizing a small business presentation or a large public event, prioritizing AV setup isn’t just a technical detail: it’s a critical part of your event’s success. With the right preparation and support, your message will be heard loud and clear.
