Organizing an event only to end up with a sound system that malfunctions is the surest way to ruin the atmosphere. We’ve all been to conferences where you couldn’t hear a thing or concerts ruined by ear-piercing feedback.
In this article, we break down the five most common sound system mistakes—from choosing the wrong equipment to sloppy testing.
Best of all, we’ll share our tips for ensuring professional-quality sound without breaking the bank. Because a great sound system takes planning!
Poor choice of equipment
Here are some specific examples of equipment to avoid depending on your event:
- Low-quality audio cables for weddings—risk of interference during the event
- Passive speakers are not suitable for conferences—they require a separate amplifier
- Omnidirectional microphones in noisy environments—pick up all surrounding sounds
- High-performance video distribution systems for small rooms - sound imbalance
- Complex mixing consoles for simple events—risk of incorrect settings
A good rule of thumb: always match the technical specifications to the type of event and the available space. As noted in our guide to audiovisual technology, underpowered equipment results in weak or distorted sound.
To calculate the required power, allow 5 watts RMS per person indoors. Outdoors, allow for more power because the sound disperses.
Neglect of acoustics
The lingering reverberation in a poorly designed room is the surest way to make speeches incomprehensible. People often think about the speakers but not about the walls, which reflect sound in all directions.
For large-scale sporting events, our experience with acoustic optimization for sports events shows that a combination of wall treatments and strategic speaker placement is essential. Average budget: expect to spend €20–40 per square meter for adequate soundproofing.
Wiring errors
A loose cable can cut off the sound right in the middle of a speech. To ensure everything is set up properly, do a thorough check one hour beforehand using spare cables.
To prevent feedback, place the microphones behind the speakers and use cardioid microphones. Keep a graphic equalizer and a feedback suppressor handy.
As explained in our guide to selecting service providers, a good technician always checksfor ground loops.
An abundance of microphones
Putting 10 microphones on stage when three would suffice is a surefire way to cause interference. Phase issues arise when signals overlap. The solution? Use directional microphones and turn off the ones you don’t need.
For large-scale events such as sporting ceremonies, our experience with large-scale productions shows that four wired microphones can be replaced by a wireless system with multiple antennas.
Wireless headset microphones work well for speeches delivered while moving around.
Lack of preliminary testing
Hasty adjustments often result in a muddy sound or unexpected feedback.
The minimum checklist: check every cable, test all microphones under real-world conditions, and bring two sets of spare cables. 80% of technical issues stem from sloppy testing.
For outdoor events, we conduct simulations with a mock audience to test the sound coverage. Our approach to technical production management includes a protocol for dealing with strong winds or temperature changes that can cause equipment malfunctions.
Comparative
Choosing the right technical solution is like putting together a menu: you have to balance the event, the venue, and your budget. For a small conference, a €300 plug-and-play system will do the trick. For a concert with 500 attendees, you’ll need to budget €1,500–2,000 for professional equipment rental.
Our article on event technical management explains how to choose between these options based on your specific requirements. The right choice always depends on the balance between quality, urgency, and budget.
Here’s what matters most: choose equipment that’s appropriate for the size of the event, test your setup, and avoid overloading the microphones. For your next sound system setup, apply these simple solutions right from the planning stage.
You’ll enjoy better sound quality and peace of mind on the big day—the audience will notice the difference.
You can also check out our page on event sound systems!
