Nasty buzzing noise from Egnater Vengeance

[Watterboy]

I have an Egnater Vengeance that is making a peculiar buzzing noise (emitting from my 4x12 cab). Its been doing it for some time, but I didnt notice how intense it was until I bought a second amp and realized my new amp was dead quiet. Can anybody help me figure it out?

Here are some facts:

-This is how it sounds: https://www.youtube.com/watch?v=flT13f-pqyU&sns=em
-The buzzing doesnt occur from the cab when the amp is on standby. It only starts up once I select either the 60 watt or 120 watt mode and can begin playing. When the amp is powered on however, it is pretty noisy/buzzy sounding around the backside of the head.
-The noise doesnt seem to have anything to do with the cooling fan on the amp. I disabled the fan; the head itself is still a bit noisy around back, and the same volume of buzzing is coming through my speaker when in play mode.
-the buzzing doesnt increase in volume if I increase the master volume or channel volume on my amp.
-i have two amps plugged into the same splitter and jack. Only the egnater does the buzzing. Also, I used to the have the egnater in a different jack, and it buzzed then too. This has been occuring for some time.
-i tried two different main power cables. It still buzzed the same. Neither caused buzzing in my other amp.
-buzzes with all three of my guitars, and buzzes the same on both clean and lead channel.
-i listened to some examples of microphonic tubes. It doesnt seem to sound like that. The tubes seem to work fine, and they sound good.
-no knobs on the amp improve or ameliorate the buzzing. It is unaffected through any extent of tweaking.
-i have tried two different speaker cables and the buzzing persisted. My other amp didnt buzz with either of them, or with my cab (carvin legacy 412)
-I tried using a few different PI tubes and swapped the power amp tubes, but the buzzing didn't go away.

Could this be an internal grounding issue with the amp? I hate to say it, but for a little while, I had the amp plugged into a jack without proper grounding. It used to shock me a little if i rested my arm on the strings, so then I moved my amp and found a new jack. I dont see how that would have affected the ground permanently though. Any ideas?

 

[311splawndude]

free bump day

 

[bruce egnater]

Contact blad@boutiqueampsdistribution.com

 

[Watterboy]

Thanks for the bump and the contact info. I sent an email.

Jeff

 

[C1-ocaster]

I have an Egnater Vengeance that is making a peculiar buzzing noise (emitting from my 4x12 cab). Its been doing it for some time, but I didnt notice how intense it was until I bought a second amp and realized my new amp was dead quiet. Can anybody help me figure it out?

Here are some facts:

-This is how it sounds: https://www.youtube.com/watch?v=flT13f-pqyU&sns=em
-The buzzing doesnt occur from the cab when the amp is on standby. It only starts up once I select either the 60 watt or 120 watt mode and can begin playing. When the amp is powered on however, it is pretty noisy/buzzy sounding around the backside of the head.
-The noise doesnt seem to have anything to do with the cooling fan on the amp. I disabled the fan; the head itself is still a bit noisy around back, and the same volume of buzzing is coming through my speaker when in play mode.
-the buzzing doesnt increase in volume if I increase the master volume or channel volume on my amp.
-i have two amps plugged into the same splitter and jack. Only the egnater does the buzzing. Also, I used to the have the egnater in a different jack, and it buzzed then too. This has been occuring for some time.
-i tried two different main power cables. It still buzzed the same. Neither caused buzzing in my other amp.
-buzzes with all three of my guitars, and buzzes the same on both clean and lead channel.
-i listened to some examples of microphonic tubes. It doesnt seem to sound like that. The tubes seem to work fine, and they sound good.
-no knobs on the amp improve or ameliorate the buzzing. It is unaffected through any extent of tweaking.
-i have tried two different speaker cables and the buzzing persisted. My other amp didnt buzz with either of them, or with my cab (carvin legacy 412)
-I tried using a few different PI tubes and swapped the power amp tubes, but the buzzing didn't go away.

Could this be an internal grounding issue with the amp? I hate to say it, but for a little while, I had the amp plugged into a jack without proper grounding. It used to shock me a little if i rested my arm on the strings, so then I moved my amp and found a new jack. I dont see how that would have affected the ground permanently though. Any ideas?

Mine doesn't do that. There is a very very light hum fully powered up and plugged in, but nothing like that.

Have you tried a different speaker cable?
And, this may sound rudimentary, but make sure you are using a real speaker cable and not instrument cable, as that can cause buzzing, wrong impedance.

Oh, I see you did try different cables.

Ok, have you tried swapping pre tubes?

You may have a buzzing that's going to the speakers and you're also hearing the fan. The fan can only be heard if it's really dead quiet in the room, other than that you really can't hear it.
If you unplugged it and the overall sound quieted, then I think one of the sounds is the fan.

If you remove the splitter and go straight from the amp to the cab does it still buzz?
Does the buzz get louder when you turn the amp volume up?

It does sound like a 60hz, which is typically a ground issue.
If you have a ground lift plug, they usually orange or gray, give that a try. It removed the ground plug out of the circuit and you can use it for diagnosis. If the buzz goes away with the ground lift, then have the amp check by a tech.

Also, contact Egnater. Supposedly, they have a new customer service guy who is supposed to be quicker to reply.
You've got a factory warranty.

 

[Watterboy]

I have an Egnater Vengeance that is making a peculiar buzzing noise (emitting from my 4x12 cab). Its been doing it for some time, but I didnt notice how intense it was until I bought a second amp and realized my new amp was dead quiet. Can anybody help me figure it out?

Here are some facts:

-This is how it sounds: https://www.youtube.com/watch?v=flT13f-pqyU&sns=em
-The buzzing doesnt occur from the cab when the amp is on standby. It only starts up once I select either the 60 watt or 120 watt mode and can begin playing. When the amp is powered on however, it is pretty noisy/buzzy sounding around the backside of the head.
-The noise doesnt seem to have anything to do with the cooling fan on the amp. I disabled the fan; the head itself is still a bit noisy around back, and the same volume of buzzing is coming through my speaker when in play mode.
-the buzzing doesnt increase in volume if I increase the master volume or channel volume on my amp.
-i have two amps plugged into the same splitter and jack. Only the egnater does the buzzing. Also, I used to the have the egnater in a different jack, and it buzzed then too. This has been occuring for some time.
-i tried two different main power cables. It still buzzed the same. Neither caused buzzing in my other amp.
-buzzes with all three of my guitars, and buzzes the same on both clean and lead channel.
-i listened to some examples of microphonic tubes. It doesnt seem to sound like that. The tubes seem to work fine, and they sound good.
-no knobs on the amp improve or ameliorate the buzzing. It is unaffected through any extent of tweaking.
-i have tried two different speaker cables and the buzzing persisted. My other amp didnt buzz with either of them, or with my cab (carvin legacy 412)
-I tried using a few different PI tubes and swapped the power amp tubes, but the buzzing didn't go away.

Could this be an internal grounding issue with the amp? I hate to say it, but for a little while, I had the amp plugged into a jack without proper grounding. It used to shock me a little if i rested my arm on the strings, so then I moved my amp and found a new jack. I dont see how that would have affected the ground permanently though. Any ideas?

Mine doesn't do that. There is a very very light hum fully powered up and plugged in, but nothing like that.

Have you tried a different speaker cable?
And, this may sound rudimentary, but make sure you are using a real speaker cable and not instrument cable, as that can cause buzzing, wrong impedance.

Oh, I see you did try different cables.

Ok, have you tried swapping pre tubes?

You may have a buzzing that's going to the speakers and you're also hearing the fan. The fan can only be heard if it's really dead quiet in the room, other than that you really can't hear it.
If you unplugged it and the overall sound quieted, then I think one of the sounds is the fan.

If you remove the splitter and go straight from the amp to the cab does it still buzz?
Does the buzz get louder when you turn the amp volume up?

It does sound like a 60hz, which is typically a ground issue.
If you have a ground lift plug, they usually orange or gray, give that a try. It removed the ground plug out of the circuit and you can use it for diagnosis. If the buzz goes away with the ground lift, then have the amp check by a tech.

Also, contact Egnater. Supposedly, they have a new customer service guy who is supposed to be quicker to reply.
You've got a factory warranty.

Thanks for the reply.

I did try a different speaker cable (two different ones actually). The volume of the amp doesnt affect the noise. Changing tubes didnt help. Disabling the fan didnt help. I think using a ground lift with a high wattage tube amp is probably an unsafe solution.

I sent in a request to Egnater customer service a few days ago but havent heard anything yet. I emailed the contact that bruce provided yesterday but havent heard anything there yet either.
I guess im just sitting tight for now. This issue seems to be over my head.

 

[C1-ocaster]

I have an Egnater Vengeance that is making a peculiar buzzing noise (emitting from my 4x12 cab). Its been doing it for some time, but I didnt notice how intense it was until I bought a second amp and realized my new amp was dead quiet. Can anybody help me figure it out?

Here are some facts:

-This is how it sounds: https://www.youtube.com/watch?v=flT13f-pqyU&sns=em
-The buzzing doesnt occur from the cab when the amp is on standby. It only starts up once I select either the 60 watt or 120 watt mode and can begin playing. When the amp is powered on however, it is pretty noisy/buzzy sounding around the backside of the head.
-The noise doesnt seem to have anything to do with the cooling fan on the amp. I disabled the fan; the head itself is still a bit noisy around back, and the same volume of buzzing is coming through my speaker when in play mode.
-the buzzing doesnt increase in volume if I increase the master volume or channel volume on my amp.
-i have two amps plugged into the same splitter and jack. Only the egnater does the buzzing. Also, I used to the have the egnater in a different jack, and it buzzed then too. This has been occuring for some time.
-i tried two different main power cables. It still buzzed the same. Neither caused buzzing in my other amp.
-buzzes with all three of my guitars, and buzzes the same on both clean and lead channel.
-i listened to some examples of microphonic tubes. It doesnt seem to sound like that. The tubes seem to work fine, and they sound good.
-no knobs on the amp improve or ameliorate the buzzing. It is unaffected through any extent of tweaking.
-i have tried two different speaker cables and the buzzing persisted. My other amp didnt buzz with either of them, or with my cab (carvin legacy 412)
-I tried using a few different PI tubes and swapped the power amp tubes, but the buzzing didn't go away.

Could this be an internal grounding issue with the amp? I hate to say it, but for a little while, I had the amp plugged into a jack without proper grounding. It used to shock me a little if i rested my arm on the strings, so then I moved my amp and found a new jack. I dont see how that would have affected the ground permanently though. Any ideas?

Mine doesn't do that. There is a very very light hum fully powered up and plugged in, but nothing like that.

Have you tried a different speaker cable?
And, this may sound rudimentary, but make sure you are using a real speaker cable and not instrument cable, as that can cause buzzing, wrong impedance.

Oh, I see you did try different cables.

Ok, have you tried swapping pre tubes?

You may have a buzzing that's going to the speakers and you're also hearing the fan. The fan can only be heard if it's really dead quiet in the room, other than that you really can't hear it.
If you unplugged it and the overall sound quieted, then I think one of the sounds is the fan.

If you remove the splitter and go straight from the amp to the cab does it still buzz?
Does the buzz get louder when you turn the amp volume up?

It does sound like a 60hz, which is typically a ground issue.
If you have a ground lift plug, they usually orange or gray, give that a try. It removed the ground plug out of the circuit and you can use it for diagnosis. If the buzz goes away with the ground lift, then have the amp check by a tech.

Also, contact Egnater. Supposedly, they have a new customer service guy who is supposed to be quicker to reply.
You've got a factory warranty.

Thanks for the reply.

I did try a different speaker cable (two different ones actually). The volume of the amp doesnt affect the noise. Changing tubes didnt help. Disabling the fan didnt help. I think using a ground lift with a high wattage tube amp is probably an unsafe solution.

I sent in a request to Egnater customer service a few days ago but havent heard anything yet. I emailed the contact that bruce provided yesterday but havent heard anything there yet either.
I guess im just sitting tight for now. This issue seems to be over my head.

The ground lift is more about diagnostics as it may tell you if it is a grounding issue.
Also, if there is a problem with your home wiring amp warranty won't help.
Don't run the amp without ground, just use the ground lift plug to see/hear if the hum stops.

I've been shocked by voltage build up where there was bad ground.
I was playing my guitar, before the gig started, and I went to the mic and got a surprising shock.
Who needs coffee to wake up.