Mixers enable you to connect more microphones, instruments and music sources to your speakers, and give you more control over your sound.

Mixers are arranged into 'channels', usually in strips going down the mixer from top to bottom, but sometimes in groups. You use one channel for each input. Inputs will be microphones, instruments, music sources or effects generators.

As well as the main mix output for the front of house speakers there will usually be monitor outputs, record outputs, headphone outputs.

Unpowered Mixers

Unpowered mixers do not contain an amplifier. They are mains-powered, and are used with active speakers or a power amplifier plus passive speakers.

View the unpowered mixer options in the online shop.

Powered mixers

Powered mixers are also mains-powered and have an amplifier built in to them which powers your passive speakers. The powered mixer power rating should be at least equal to the combined power of your speakers.

How do I calculate what power I need for a powered mixer?

In order to work this out, look at the spec of the speakers and find out their impedance. Are they 4 Ohms or 8 Ohms? Then look at their power in RMS. If the speakers are 200 watts RMS at 8 Ohms and assuming you only have two speakers you need a powered mixer that's capable of delivering 200 watts RMS per channel at 8 Ohms, or more if you want to give it some head room.

If you want to power two passive speakers per side, you will need a powered mixer that's capable of delivering 400 watts RMS per channel at 4 Ohms or more.

View the powered mixers in our online shop.

100v line mixer/amps

Mixer/amps are often used as background music solutions for bars, hotels etc. and are used to power 100v line speakers.

You need to calculate the number or speakers x the power rating they are tapped at, and then allow 20% on top. E.g. 4 x 20w speakers = 80 watts + 20% = 96 watts, so opt for a 120 watt mixer/amp.

Integrated mixers

Portable PA systems will usually have a small integrated mixer allowing you to connect microphones, instruments and  music sources. If it's a two-speaker portable PA the mixer will be powered, meaning the speakers are passive and don't need to be plugged into the mains.