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Any Allnic users out there? Hum problem.

I brought this up previously but was not very specific.

I bought an H3000 phono stage which I liked very much and was perfectly silent. I then bought an HA Head Amp which had a slight hum. Shortly after I got it one of the transistors blew(I believe,) it went dead and I had to return it to Korea for repair.

Since I've gotten it back the hum is worse. When I play a record the sound covers the hum but when it stops the hum can be heard and felt from the speakers where I am sitting about 8 feet away. I asked the maker about this and he told me he sent it back to me in perfect condition so that's a dead end.

Is a hum to be expected? Do you live with it? Is it a grounding problem? I asked the maker about this as well and he did not respond to the query.

I would greatly appreciate any advice from Allnic users and especially those with the HA3000. Do you get a hum? Is it noticeable when an lp isn't playing? Any grounding suggestions?

My amp is a VTL S200 with an Ayre pre K5 xe mp.

VTL super scoutmaster with 3D tonearm.

Conditioner is an Isotek Sigma.

As I said everything is perfectly quiet until I turn on the HA.

I want to fix this because I like the Allnic sound enormously and don't want to be without the HA. It really is wonderful.

Thanks for any thoughts you may have on my situation.

vindanpar
nandric's avatar
nandric
4,086 posts
 

Dear Lew, To me those details which you mentioned looks like

variables. You of course know that there are many while each

variabale needs some value to make sense. While I left Serbia

50 years ago I still think that Serbo-Croatian is my ''native language''

Here is an Serbian saying which I like very much: ''you will be sorry

for what you have done and also for what you have not done''.

We all are free to make our choices but, alas, there are so many.

Like ''to many variables'''.

And yes you are right about people divided by the same langauge.

The Serbian and Croats are willing to start a new war in order

to decise which language is older: Serbian or Croatian .

BTW the Serbian don't need any reason to start a war. ''Pure

passion'' so to speak(grin).

xactaudio's avatar
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xactaudio
156 posts
 
Greetings Nandric. I am sad to read about your cartridge hum problem. Bummer. Do you have any other Glanz MFG carts? My MFG61(and all other Glanz carts) and Allaerts Formula 1 have no hum issues with any of my phonostages. I have experienced that dreaded sound with a couple of my other vintage carts, all uber low output when I used the H3000 or NVO phono amps. I'm sure you have tried all normal remedies so I will not waste your time with that.
Bonne chance.
theothergreg
222 posts
 
I use an H3000 with an HA3000 and don't have any of the hum issues that you describe.  I use the setup with both a DV XX-2 MkII and Kiseki Purpleheart.  You may want to make sure that the tubes are seated properly as they can become dislodged during shipping.
vindanpar OP
58 posts
 

Thank you.

I was talking to another individual and he said he had no hum issue as well.

How do you like the HA added to the H?

theothergreg
222 posts
 
I really enjoy the HA with the H.  As you said, the sound stage is really enormous and holographic.

Oh, I thought of another thing:  When I plugged my network streamer in the system, the wireless router did cause some noise to come through the phono stage.  Once I removed that, the noise went away right away.
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