Effects hum.

[deadwtxsky]

Ok so I need something to eliminate hum. Did some searching on here and got some good ideas. wanted to see what you guys had to say for my situation. At the church I play at any time I adjust one volume knob on my j bass without adjusting the other I get this annoying hum. So both pickup volumes have to be at the same level. my line is like this:

J bass> Ibanez Chorus Flange (for filter sound)> Danelectro Pastrami overdrive> boss super chorus> boss bass limiter> behringer echo machine> Sansamp> mixer (via di). I use a 1 spot power adapter with an 8 multi plug.

Most of my noise is coming from the echo machine. But there is some noise coming from the sansamp and the buildings wireing.

I need something to eliminate hum and I was looking at the behringer noise reducer(I like behringer because they are inexpensive and sound like boss and e-h pedals) But with that pedal the noise is still there when you start playing. So then I was looking at a hum eliminator like the EBTech HE2PKG Hum Eliminator or the Behringer MICROHD HD400. But I don't think those will work for effects. Does anyone know?

Then I found the little Sescom IL-19 but if I were to use that I would always have to have my sansamp at the end or buy a di box for church. Personally I think it sounds better when the sanas amp is before the bass limiter. Any opinions or ideas? Please help.

[Footbutt]

i'd get rid of/sell the Behringer echo pedal, personally.
for noise, the best option is to eliminate the source, rather than to doctor it up. BUT...
the cheap way would be to try running the trouble-some pedal with it's own dedicated power supply with the correct mA rating. if the noise is only when it's in use, then it's probably too hot for voltage, or something.

[Matt Dean]

I think whats happening is that your J bass has single coil pickups when you adjust one of volumes, you're getting your standard single coil hum. Nothing to do with effects IMO.

[tech21nyc]

Originally Posted by deadwtxsky

Ok so I need something to eliminate hum. Did some searching on here and got some good ideas. wanted to see what you guys had to say for my situation. At the church I play at any time I adjust one volume knob on my j bass without adjusting the other I get this annoying hum. So both pickup volumes have to be at the same level. my line is like this:

J bass> Ibanez Chorus Flange (for filter sound)> Danelectro Pastrami overdrive> boss super chorus> boss bass limiter> behringer echo machine> Sansamp> mixer (via di). I use a 1 spot power adapter with an 8 multi plug.

Most of my noise is coming from the echo machine. But there is some noise coming from the sansamp and the buildings wireing.

I need something to eliminate hum and I was looking at the behringer noise reducer(I like behringer because they are inexpensive and sound like boss and e-h pedals) But with that pedal the noise is still there when you start playing. So then I was looking at a hum eliminator like the EBTech HE2PKG Hum Eliminator or the Behringer MICROHD HD400. But I don't think those will work for effects. Does anyone know?

Then I found the little Sescom IL-19 but if I were to use that I would always have to have my sansamp at the end or buy a di box for church. Personally I think it sounds better when the sanas amp is before the bass limiter. Any opinions or ideas? Please help.

You have quite a bit going on there. As you noticed your J Bass needs to have both pickups at equal volumes to cancel noise. The other issue is that you have a daisy chain power supply which is not recommended for powering your SansAmp as they can cause ground loops. You didn't mention but I will assume you have our Bass Driver DI pedal.

Here is the best way to figure out the problem. Assuming you have already tested your cables. Disconnect all your pedals from the front of the SansAmp and only plug your bass directly into the SansAmp. You should really have a battery in each unit to trouble shoot as this will allow you to try the effect without your power supply in case that is causing the noise. Check to see if your signal is quiet with just your bass and the SansAmp while only using the battery to power your SansAmp. It's best to adjust the drive control with your bass' volume controls on full as this will give you the best signal to noise ratio. If you are using the SansAmp for some drive that will increase any noise your bass produces, Any gain producing device does this. if you just want to hear how much noise you have while just running direct, put your SansAmp in bypass mode. Once you have determined that just your bass and SansAmp are quiet enough you can start adding the other pedals (one at a time) to see if they are adding any noise. If you are able to plug them all back in and they are all powered by batteries you can start using your power supply (one pedal at a time) to see if the pedal is just as quiet with the power supply as it is with a battery. I know this seems like a lot to go through but it's cheaper than buying a noise gate (that you probably don't need) and should solve your problem.

In general we recommend time domain effects (flangers, chorus, delays reverb) be placed after the SansAmp although this may not be practical if you are using the XLR out.

[deadwtxsky]

i have the pbddi. I was going to call it the p diddy. But I used to work at starbucks and I hated when people would order ralph machios.

Yeah I think it sounds better before the time stuff to. So pretty much if my bass has a hum while using only fresh batteries and my pbddi theres really nothing I can do to my stuff?

so ground loops are alternate circuits that cause the hissing noise?

I'll definitely test everything out like that. I'll be up at the church tonight. And can probably test some of it here at my house. Thanks. Whats your name?

[tech21nyc]

Originally Posted by deadwtxsky

So pretty much if my bass has a hum while using only fresh batteries and my pbddi theres really nothing I can do to my stuff?

so ground loops are alternate circuits that cause the hissing noise?

I'll definitely test everything out like that. I'll be up at the church tonight. And can probably test some of it here at my house. Thanks. Whats your name?

No I wouldn't say that. The trick is to isolate the problem and then try to deal with it the best you can. I used to play in a place that had fluorescent lights everywhere and really old bad wiring. Everything was noisy and the best I could do was bring my most quiet guitars and deal with it. A noise gate basically will stop the noise when you are not playing. When you are playing the signal to noise ratio is such that your signal is at a higher level than the noise when you aren't playing so you don't really notice it even though it is still present. I just turn down my guitar volume when I'm whenever I stop playing in a noisy environment.

Ground loops usually cause a hum. Hiss can be from a a gain producing device or possibly from that switching power supply and one of the pedals. It depends. Once you start to trouble shoot you should be able to figure it out. My name is Chris by the way.

[deadwtxsky]

so i know tech21 doesn't recommend the my power supply setup but if I keep it like that will a noise gate help?

[CHILDISHGAMBINO]

Originally Posted by Matt Dean

I think whats happening is that your J bass has single coil pickups when you adjust one of volumes, you're getting your standard single coil hum. Nothing to do with effects IMO.

+1

[bigchiefbc]

It really depends on whether it truly is like a 60-cycle hum or if it is signal noise (more like a hiss). The noise suppressors generally are only to remove hiss. To remove a 60-cycle hum, check out this one, which I've heard works wonders:

[deadwtxsky]

Sorry I keep using hum and hiss wrong. But I see the difference now.