If possible, connect each separate piece to other gear to see if it works, and replace cables with spares if you have them, and then you might be able to figure out which piece is causing the problem. Sometimes a protection circuit will trip, cutting off power or audio signal, and you might just need to turn the equipment off for a moment to let it reset. Make sure they are in the right place and that the connectors are secure. If you are, check the cables between the mixer and the amp, and the amp and the speakers. Listen to your headphones to see if you are getting sound there. This includes not just the main mixer and amplifier, but all the input channel level controls as well. 
Make sure all of the equipment is turned on, and that the volume controls are turned up at least a little. To avoid this, let’s run through some basic problems you might encounter. What if you have followed our instructions and aren’t getting any sound? Even the simplest process can go wrong, and finding the reason can sometimes take longer than the process itself. Troubleshooting – I’ve connected the amp to a mixer, but it doesn’t work. If your guitar amp has a line level input, you could safely use that instead of the main jack, but such a setup will never give you the same sound quality, will probably only be monaural (not stereo) and may not provide enough volume. Some people want to connect their mixer to a guitar amplifier, but this is not normally recommended, as the output from the mixing board is too strong for the amp’s guitar input jack, resulting in unexpectedly high, even dangerous, volume levels, extreme distortion and damage to your equipment. The same cables and connectors are used and the same principles apply, and you should be able to follow the directions above with the same results. These are PA speakers which have a power amplifier built into them, eliminating the need for a separate amplifier.Ĭonnecting your audio mixing board to powered speakers is exactly the same as connecting to an outboard PA amplifier. 
In some cases, you may want to use “active” loudspeakers. Variation 1: Connecting to Powered Speakers
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