First thing is to verify your sound system is OK by running program material such as a CD at normal levels through it. If it is OK then you need to consider if your drum set is overdriving your sound system. Drums generate high pulses and can easily saturate PA systems. First thing here is to connect headphones to your drum set and listen how the set sounds via headphones. If both these tests pass muster, then your PA system may be too small to handle the drum audio. In that case, get at least a 15 inch powered monitor, preferably bi-amped to run the drums through.
Knowing how a system is being used helps us help you. You are using this in a church.
Here is a check list to verify to insure system integrity:
1. Is your mixer and power amps ALL powered from the same source? Do NOT power them from wall receptacles at the opposite ends of a room. I won't go into the technical reaasons for this other than to say many have blown equipment up due to ground faults in the building ground. Run an extension cord for the mixer back alongside the snake if necessary. This is what the pros do.
2. If you are running your drum signal back through a long cable it MUST be using a balanced line (XLR or TRS) cables. Since the drum may be unbalanced output, you will need a DI near the drums. Drums CAN saturate the transformer in the DI so the LEVEL sent to the DI must be adjusted. Also the DI input should be "ground lifted". Make sure the DI can handle drums as some of them saturate. You may be better with an active type DI.
3. The mixer needs to be properly setup using the input trim control. It is easy to either SATURATE the input OR lose signal to noise ratio if your slider/fader isn't say between -10 and 5 or 1 o'clock if a rotary fader.
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Our PA System will support way more than this set of drums. We run our Church band through the system each week. The drum set worked fine the first couple of times out but then started doing this. I have had the head replaced and still does the same thing. I am thinking it may be the power supply but have not been able to verify that because Simmons only uses email to communicate. I hate having to send an email and wait a couple of days to hear back.
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