The Sound of Success: Building a Better Audio Setup

No performance is worth anything if the audience can’t hear it! Appropriate amplification and audio setup is crucial to your success – with so many options to choose from, it is important to know the basics so you can select the right setup for your application:

Speaker Size and Wattage

A small, enclosed classroom will require much less power and volume to fill with sound than an auditorium or outdoor space. Even though your volume knob might go up to 10, you want to keep it below that – pushing an underpowered system or smaller speaker in a larger space will likely cause poor audio quality and could damage the speaker over time. Always overestimate the power and volume you need, and you won't have to worry. Place your speakers on speaker stands at ear-level for optimal performance.

Mixers

A mixer is like a kitchen blender – all your sound sources act as ingredients, and the mixer takes those sources and blends them to create a smoothie of sound – your “mix” – which then travels out through your speakers. Mixers come with a predetermined number of available inputs known as channels. When choosing your mixer, be sure to leave room for expansion and opt for more channels than you currently need – in the future you may want to bring additional sources of audio into your mix.

Connection Types

Most microphones use a 3-pin style connection known as XLR, while instruments are plugged in via a 1/4” connector. Mixers and speakers usually offer both kinds of inputs, often with a “combination” input that works for either. Audio sources such as laptops and phones are often connected with an 1/8" (3.5mm) connector or sometimes a pair of red and white RCA connectors. Many mixers and speakers offer Bluetooth connectivity as well.

Microphones

For most live sound purposes, a dynamic microphone will be what you need. Condenser microphones are more delicate and tend to work better for recording music but also work for larger groups such as choirs. Wireless microphones give freedom of movement but note that each wireless microphone will need to pair with its own designated receiver. It works just like a radio – you can only hear one signal at a time! Headset microphones are a great way for teachers to protect their voice from overuse.

Portability 

Some speakers come equipped with a rechargeable battery, great for outdoor opportunities. Many all-in-one systems include mixers and speakers that clip together for ease of travel. Consider covers for your speakers and designated totes for your stands and cables so you can pick up and go.

BONUS: Ready to Record!

Recording high-quality music in your classroom with a laptop or PC is as easy as plugging in a USB-style microphone. You can also record with your computer using a traditional XLR (three-pin) microphone paired with an audio interface. Many audio interfaces come with a free digital audio workstation (DAW) recording program. You can also do a quick internet search for free alternatives. Any traditional XLR-style microphone can be connected to an audio interface, but the best way to elevate your sound and capture an entire room is by using a large-diaphragm condenser microphone or a pair of small-diaphragm condenser microphones. Plug your headphones into your interface to listen as you record. A pair of monitor speakers allows you to listen between takes. For vocal recordings, try upgrading your experience with an isolation shield or pop filter.