Is this sound normal?

[jckid649]

When the amp is on and you turn the volume up this sound gets louder. Is this just normal or do I have an excess of hum/buzz in this circuit?

[Shai`tan]

I am thinking that sound is inherent. But someone here better in the know will chime in.

[Drew.12345]

It sounds about right to me.

Do you have anything plugged into the amp?
Do you have a chassis cover on the amp?
Is the chassis on the ground or on the speaker cab.

These amps pull in stray noise like no other amp I know.
I have mine in an a cherry amp cab with cork on the bottom of the chassis plate and it's pretty quiet....Until I plug in.
With my tele plugged in I get a bit of "buzz" but that's just the single coil magic IMOHO.
These amps do hiss a bit but as the guys here will tell you so do most high gain amps.
My express hisses about as much as my 5e7 cranked but not nearly as much as the gain channel on my badcat hotcat.

Drew

[jckid649]

It sounds about right to me.

Do you have anything plugged into the amp?
Do you have a chassis cover on the amp?
Is the chassis on the ground or on the speaker cab.

These amps pull in stray noise like no other amp I know.
I have mine in an a cherry amp cab with cork on the bottom of the chassis plate and it's pretty quiet....Until I plug in.
With my tele plugged in I get a bit of "buzz" but that's just the single coil magic IMOHO.
These amps do hiss a bit but as the guys here will tell you so do most high gain amps.
My express hisses about as much as my 5e7 cranked but not nearly as much as the gain channel on my badcat hotcat.

Drew

Nothing is plugged in. It's actually less noisy when I plug it in.

Right now I don't have the cabinet finished but it does have a bottom plate on it and it is on top of the amp cabinet (which is the noisiest place btw.)

[Drew.12345]

Did you record this on top of the amp cab?

[jckid649]

Did you record this on top of the amp cab?

Yes

[geetarpicker]

Sounds normal to me. You should however have quite a strong guitar signal once you plug in that will be WAY above the level of the noise. Keep in mind this is a high gain amp with no master so you need to remember even on 1/2 it will be at STAGE volume, perhaps even with the volume less than that if your pot taper comes on quickly. A great way to tone the noise down around the house is to simply use an attenuator. Folks tend to under estimate how gainy these amps are.

[jjman]

Nothing is plugged in. It's actually less noisy when I plug it in.

Make sure the input jack is shorting properly when nothing is plugged in.

[geetarpicker]

True. If the input jack is setup to short there should really be no noise difference between cranking the amp with or without a guitar, if the guitar is off that is. Once the guitar is turned up you may get more humm/buzz simply due to the pickups. However with humbuckers this will be much less noticable. These days I run a Suhr hum cancelling back plate on my strat with standard Fralin single coils. This helps quite a bit with any rig that I play, not just with the wrecks. That said without the 1meg loading resistor the Express/Liverpool will really make a lot of racket if a guitar isn't plugged in.

[jckid649]

I do have the 1 meg resistor and a 15k on the shielded wire to pin 7