Hello,

Recently I purchased a used Grace 101 mic preamp and it is acting strange.

Basically, when I power it on (nothing plugged into it line or mic) the LED

slowly changes from green to red. When I plugged it into my mixer the

signal was red lined on the mixer! Is it possible that I was supplied the

Hey all, just got my project studio up and running but am having minor grounding issues. I have everything run into a power conditioner then that to the wall. I am getting a small 60 cycle hum through my monitors. its not loud but audiblle when the room is silent. Also my guitar is getting a buzz only when i fret notes, this is a new phenomina since assembling this new space.

can someone explain how i get rid of the ground loop hum created when i plug my preamp into my interface. i assume this is what i'm experiencing. the preamp is powered by a 2 prong wall wort. the interface is usb bus powered.

i've read that i have to lift the groung from one end of the chain and not the other but i don't know how to do that.

I have a problem with a hum in my guitar wile recording through the pre-sonus firepod. I have the Taylor expression system (my guitar signal is balanced)but the firepod's power adapter does not have a ground pin. If I touch the firepod with my skin the hum goes away so think this is a ground problem with the fire-pod.

In my recording (DAW - Adobe Audition 2.0) I am using an Alesis Fusion 6 HD synthesizer going into a Phonic 12 Firewire Mixer, and then into my computer with a firewire cable. (Windows XP). The problem I am experiencing is an audible hum whenever I hook up the Fusion to the mixer. I get it on every channel.

Hey. I Just set up my first daw.

I have a Hercules Firwire interface. Im using a pair of Fostex monitors.

When the Firewire cord from the interface touches the metal around the input on my laptop its starts buzzing and does so when it is in all the way.

Hi buddy,

could someone give me a hand to solve the LOW HUM problem..?

I got a Samson guitar wireless,a L.R.Baggs PARA DI.
my routing is..link from wireless (unballance) output to PARA DI input(unballance),XLR output from PARA DI to Mixer...

but facing Low Hum problem..

hello

i have a harley-benton hbb500tbk electric bass. it's a cheap one, but it's active and ok for me. the problem is that the one pickup makes a humming noise (like some ground problem), which makes it kinda unusable. i can use the other one, which doesn't make any noise (at least no unwanted) but i like the sound of the other one better (except for the humming of course).

I am having a bit of an issue with hum at 8kHz, but only on DI'd instruments... everything else is fine.

I've tried trouble shooting the usual hum causes but nothing seems to work. Does anyone have any suggestions as to what would cause hum at about 8kHz?

Thanks!

...ok

so I now have the M-Audio SBx.. hooked up from DAC-1 to the mackies.

whn nothing is playin.. i hear a humming noise now thru the satellites(Mackie HR824's).

how can I eliminate this is why is it here?