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Author Topic: Is it possible for an active bass to damage a wireless pack?  (Read 2011 times)

Jon Brunskill

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Is it possible for an active bass to damage a wireless pack?
« on: January 07, 2019, 09:39:50 pm »

At New Years, I pulled out my Sennheiser G2 wireless system out for a bassist.

He plugged in, and there was no sound, unless he was playing as hard as he possibly could. When the sound did come through it would let through a short, sharp nasty sounding note, and then gate it off really hard.

I've finally had a change to look at it, and it's doing the same thing to me. It works just fine with a mic, but with a guitar, keyboard, it does this awful gated thing.

Has anyone else come across this problem? Is it possible that the bassists' active bass could have put a voltage down the cable into the input section of the transmitter and shorted something out?

Thanks
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Bradford "BJ" James

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Re: Is it possible for an active bass to damage a wireless pack?
« Reply #1 on: January 07, 2019, 09:56:03 pm »

Probably a bad cable. Simple stuff first.
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Scott Hofmann

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Re: Is it possible for an active bass to damage a wireless pack?
« Reply #2 on: January 07, 2019, 10:19:04 pm »

Have you tried to adjust the input sensitivity via the transmitter menu? Could be the bass is overloading the transmitter.
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Jon Brunskill

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Re: Is it possible for an active bass to damage a wireless pack?
« Reply #3 on: January 07, 2019, 10:20:41 pm »

Probably a bad cable. Simple stuff first.

Cable tests good! First thing I tried.
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Scott Helmke

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Re: Is it possible for an active bass to damage a wireless pack?
« Reply #4 on: January 07, 2019, 10:39:25 pm »

It's possible that there was damage.  The guitar signal for those Evo systems goes through the ring contact, while the mic goes through the tip of the 1/8" plug. Might have been damaged previously, though.

Maybe the jack itself is damaged, rather than the input circuitry.  That's not an especially difficult repair.
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Mal Brown

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Re: Is it possible for an active bass to damage a wireless pack?
« Reply #5 on: January 08, 2019, 01:30:53 am »

Unlikely...  I play active basses from 9 v to 18v.. or passive P Basses.  Never clipped a wireless
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Keith Broughton

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Re: Is it possible for an active bass to damage a wireless pack?
« Reply #6 on: January 08, 2019, 06:49:46 am »

There are 2 ways to wire these cables.
Check to see if there is (appx)5 volts from tip to ring of the cable when plugged into the pack and pack turned on.
If there is, it's wired incorrectly.
If not...I'm stumped. I have used G2 for this application before and not had this type of problem.
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Jon Brunskill

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Re: Is it possible for an active bass to damage a wireless pack?
« Reply #7 on: January 09, 2019, 09:56:26 pm »

It's wired 100% correctly and tests good. I made another cable, using the ground and the tip, or mic input into the wireless, and that works. So it's my best guess that some part of the 'line input' circuitry is dead. I do suspect that bass, as I used the system the day before with my own band, and it worked perfectly.
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Keith Broughton

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Re: Is it possible for an active bass to damage a wireless pack?
« Reply #8 on: January 11, 2019, 06:05:42 am »

If it works on the mic input, then great!
With an active pickup, I would have figure the mic in would get overloaded.
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Tim McCulloch

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Re: Is it possible for an active bass to damage a wireless pack?
« Reply #9 on: January 11, 2019, 12:50:47 pm »

Unlikely...  I play active basses from 9 v to 18v.. or passive P Basses.  Never clipped a wireless

Nine volts at the bass guitar output?  That's more than most console outputs deliver with an "average" signal.

Tell me those are the batteries...
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Re: Is it possible for an active bass to damage a wireless pack?
« Reply #9 on: January 11, 2019, 12:50:47 pm »


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