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REVIEW: DARKVOICE 3322 - Page 32

post #466 of 491

dxanex, have you really made sure the tubes are pressed down against the socket properly? I had hum during tube rolling once but it went away with some fiddeling with the sockets... Also, new tubes may hum during burn-in.

post #467 of 491
Quote:
Originally Posted by SgtE View Post

dxanex, have you really made sure the tubes are pressed down against the socket properly? I had hum during tube rolling once but it went away with some fiddeling with the sockets... Also, new tubes may hum during burn-in.
Yeah..i gave that advice also..fiddling helped with my 337 biggrin.gif
post #468 of 491
Quote:
Originally Posted by SgtE View Post

dxanex, have you really made sure the tubes are pressed down against the socket properly? I had hum during tube rolling once but it went away with some fiddeling with the sockets... Also, new tubes may hum during burn-in.

 

Quote:
Originally Posted by hifimanrookie View Post


Yeah..i gave that advice also..fiddling helped with my 337 biggrin.gif


Yeah, I've tried pressing down on the tubes to the point that I was actually concerned I may damage the tubes. I finally got a hold of the seller, and he said he would contact one of the engineers and see what they say, so there's that...

 

At least with my Senn HD650's it's not too much of an issue. But with my AKG's it's really quite annoying. I've also let the new tubes burn for 5-6 hours straight one morning and still no change in the hum at all :/

 

Now I wonder if the tube sockets could be bad? There is a seller on eBay selling replacement ceramic tube sockets for pretty cheap. I wonder how hard it would be to replace the sockets? I know nothing of engineering, but I can replace components inside my PC just fine...but if there's soldering involved, forget it!!  blink.gif

post #469 of 491
Quote:
Originally Posted by dxanex View Post

 


Yeah, I've tried pressing down on the tubes to the point that I was actually concerned I may damage the tubes. I finally got a hold of the seller, and he said he would contact one of the engineers and see what they say, so there's that...

 

At least with my Senn HD650's it's not too much of an issue. But with my AKG's it's really quite annoying. I've also let the new tubes burn for 5-6 hours straight one morning and still no change in the hum at all :/

 

Now I wonder if the tube sockets could be bad? There is a seller on eBay selling replacement ceramic tube sockets for pretty cheap. I wonder how hard it would be to replace the sockets? I know nothing of engineering, but I can replace components inside my PC just fine...but if there's soldering involved, forget it!!  blink.gif

 

Changing parts in a computer is one thing, doing soldering in a tube amp is a totally different matter.

 

A tube amp hold lethal amounts of volts if you dont know what you are doing.

post #470 of 491
Quote:
Originally Posted by dxanex View Post



Yeah, I've tried pressing down on the tubes to the point that I was actually concerned I may damage the tubes. I finally got a hold of the seller, and he said he would contact one of the engineers and see what they say, so there's that...

At least with my Senn HD650's it's not too much of an issue. But with my AKG's it's really quite annoying. I've also let the new tubes burn for 5-6 hours straight one morning and still no change in the hum at all :/

Now I wonder if the tube sockets could be bad? There is a seller on eBay selling replacement ceramic tube sockets for pretty cheap. I wonder how hard it would be to replace the sockets? I know nothing of engineering, but I can replace components inside my PC just fine...but if there's soldering involved, forget it!!  blink.gif

First of all: I heard of tubes needing more then 48 hours to get quiet..so 5 hours is not so much..
Second..i myself am a specialist in building high end pc's from scratch..but i never ever would try to modify my tube amp..it really specialized work..best way is wait for a reply from ur seller first..and if they dont wanna help..what i find weird as u have warranty..then contact a reputable tube specialist..
I dont know which country u live..but am sure if u google locally for tube amp repairs/modders u will find one..in my experience look for guys who have experience with vintage guitars amps or something..those normally are the ones who know every fault a tube CAN have.

Good luck with it.
Edited by hifimanrookie - 11/30/12 at 4:43pm
post #471 of 491

alright, so I spoke with the seller again who has spoken with the engineer. He told me to take the driver tubes out of the sockets and leave the amp on for 48-72 hours and the humming noise should disappear. Sounds weird, but I guess I'll try it....

post #472 of 491
Quote:
Originally Posted by dxanex View Post

alright, so I spoke with the seller again who has spoken with the engineer. He told me to take the driver tubes out of the sockets and leave the amp on for 48-72 hours and the humming noise should disappear. Sounds weird, but I guess I'll try it....
Never heard that one..well try it..u have nothing to loose right..so if it dont work u can sent it back to them?
post #473 of 491
Quote:
Originally Posted by hifimanrookie View Post


Never heard that one..well try it..u have nothing to loose right..so if it dont work u can sent it back to them?


Well, I probably can. I would just like to avoid that if possible. I have to pack it up, ship it to China which takes half a month, duty fees, etc. then wait for a replacement... It's just an overall pain in the rear-end. That and it sounds sooo good with my new HD650's...I'd be lost without it for that long.. triportsad.gif

post #474 of 491
Quote:
Originally Posted by dxanex View Post


Well, I probably can. I would just like to avoid that if possible. I have to pack it up, ship it to China which takes half a month, duty fees, etc. then wait for a replacement... It's just an overall pain in the rear-end. That and it sounds sooo good with my new HD650's...I'd be lost without it for that long.. triportsad.gif
Am sorry to hear that..i wouldnt want to be in ur situation right now my friend..lets hope that the advice works then..
post #475 of 491

Ok, so I finally figured out what the humming problem was. It was the flippin' SVETLANA POWER TUBES... after going through several driver tubes, burning in, leaving the amp on for days with and without tubes, cleaning with deoxit, sacrifice to the audio gods, ceremonial dances, ect. I finally had the genius idea to take out the Svetlana 6S19P-B tubes and replace them with the original stock Chinese power tubes (I had to dig them out of a box in the closet) and lo-and-behold all the humming stopped...like completely gone with all my EF95 tubes.

 

So needless to say I am very happy now that I've gotten to the bottom of it, but at the same time I'm a little disappointed with the Svetlana tubes. Obviously, they must be faulty in some way...maybe some components/impurities loosened themselves from the glass during shipment? Who knows...but that sucks, considering the Svetlana tubes are supposedly superior to the Chinese power tubes. But I'm relieved that it's just the tubes and not a fault with the actual amp. For now I'm sticking with the Chinese power tubes, with the Tung-Sol 5654W driver tubes this thing still sounds fan-frickin'-tastic.

post #476 of 491
Quote:
Originally Posted by dxanex View Post

Ok, so I finally figured out what the humming problem was. It was the flippin' SVETLANA POWER TUBES... after going through several driver tubes, burning in, leaving the amp on for days with and without tubes, cleaning with deoxit, sacrifice to the audio gods, ceremonial dances, ect. I finally had the genius idea to take out the Svetlana 6S19P-B tubes and replace them with the original stock Chinese power tubes (I had to dig them out of a box in the closet) and lo-and-behold all the humming stopped...like completely gone with all my EF95 tubes.

So needless to say I am very happy now that I've gotten to the bottom of it, but at the same time I'm a little disappointed with the Svetlana tubes. Obviously, they must be faulty in some way...maybe some components/impurities loosened themselves from the glass during shipment? Who knows...but that sucks, considering the Svetlana tubes are supposedly superior to the Chinese power tubes. But I'm relieved that it's just the tubes and not a fault with the actual amp. For now I'm sticking with the Chinese power tubes, with the Tung-Sol 5654W driver tubes this thing still sounds fan-frickin'-tastic.
Dont u worry..i have svetlana's powertubes myself on my 337( see my pics) and they are dead silent..so u just have a bad pair..that happens..lucky i didnt experience that before..but from what i hear around..it happens..so not all svetlanas hum..u just had a bad pair..and trust me..my 337 sounds way better with my tung sols gt mesh plates driver tubes and the svetlanas as powertubes..then the orginal chinese ones..just try to buy from the reputable sellers..as that makes buying faulty tubes minimal..have fun listening wink.gif
post #477 of 491
Quote:
Originally Posted by hifimanrookie View Post

Dont u worry..i have svetlana's powertubes myself on my 337( see my pics) and they are dead silent..so u just have a bad pair..that happens..lucky i didnt experience that before..but from what i hear around..it happens..so not all svetlanas hum..u just had a bad pair..and trust me..my 337 sounds way better with my tung sols gt mesh plates driver tubes and the svetlanas as powertubes..then the orginal chinese ones..just try to buy from the reputable sellers..as that makes buying faulty tubes minimal..have fun listening wink.gif

Where did you get your Svetlana tubes from?
post #478 of 491
Quote:
Originally Posted by dxanex View Post


Where did you get your Svetlana tubes from?
 
the guy who bought it for me (was a gift for my birthday..lolz) bought it from www.vacuumtubes.net if i am not mistaken..as far i know they are very reputable seller..i myself just ordered a pair of matched NOS 5998's and a pair of rca 5693's red's from them. they are in the states and in florida as far i know...
post #479 of 491

I have a problem of humming with my 3322. I try to change all tube with another set of tube, but had no result, just a little difference in humming sound.

I find a curious problem, when I close right volume I can hear, with very very low intensity, local radio. When I just put on a little of volume, radio cut. When I close left side, they affect sound of right side radio. 
I have no radio receiver in my room :P

It's my power source doing that and doing humming?

post #480 of 491

Someone have experience of 3322 with HD-800?

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