2 Answers

OK, since you can turn the hum down with the fader (I assume you mean the fader for the channel where the receiver is connected) then the hum is coming in through the mixer's input.

A couple more things:

1. Is the noise coming from the receiver itself? Do you get it even with the transmitter off and only turn on the receiver?

2. Is the receiver located near the mixer, or at some distance with its output running through a long cable or a snake?

3. If it's running through a long cable, can you move it close to the mixer and use a short cable?

4. If it's already near the mixer, try a different XLR-XLR cable.

5. If you've already tried that, try connecting it using a 1/4" cable to the line input of the mixer.

6. You may need to juggle the position of the Gain Trim control on the mixer and the output level control on the receiver. What you want to avoid is having the output of the receiver up so high that you need to turn the gain on the mixer way down, and vice versa - you don't want to have the gain on the mixer way up and have to turn the output level of the receiver way down in order to avoid overloading.

7. Hum and buzz don't sound the same. Buzz often contains hum, but hum doesn't buzz. Try moving the receiver around a bit and listen for a change in the noise. Is the power supply for the receiver close to other cables?

8. It's possible that the receiver is defective. Can you get the dealer to swap it for another one?

11 years ago. Rating: 2
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the other day i asked you about the mixer problems . well i have two mackie srm 450 mackie powered speakers if i plug the xlr leads into the input sockets of the speakers with out pluging the other ends ito the mixer i hear the hum as i turn up volume on speakers vol when i unplug them i doint  the leads are quite new is this how it should be thanks from ron

11 years ago. Rating: 0
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