[Snuggles]

I just purchased an Earmax pro and I was wondering whether the tubes have to be placed in a certain order. How I put it right now is the two alike tubes on the outside and the different tube in the center, but since I'm unsure about the placement of the tubes I am too scared to turn it on for fear of damaging the tubes or even the amp itself. Is there a certain order the tubes should be placed in and if so is there any danger in putting it in a different order?

 

[agile_one]

No big danger in doing it wrong, but the correct placement is the driver (12at7, ecc81, whatever yours is) in the center position, and the two output tubes (6dj8, ecc88, etc) in the two outside spots.

Have fun - you have a great amp.

 

[Snuggles]

Thank you sir you are a great help =)

 

[Snuggles]

PROBLEM SOLVED: By accident I figured out that my cable was mis-wired, very disappointing for an interconnect I spent $76 on. Now, to wait on a replacement.

okay, so I got a mini to rca interconnect (http://signalcable.com/silvermini.html) to connect my computer to my amp and when I plug it in there is an extremely loud buzzing noise that makes any sound coming out of the amp to be unbearable after turning the knob about 1/4 of the way. Not only is there this buzzing noise, but it seems like all the voices are tiny, and i have to strain my ears to even notice them.
I am currently using a Creative Audigy 2 ZS as my source, but plan to upgrade to the auzentech prelude when it comes out. I saw that some people had a problem with static like this when going directly from their sound card to their amp, and recommend using a DAC. Does anyone know what the problem is and a possible solution?

Edit: I have also tried it through my MP3 player and laptop's mini out with the same problem. I tried it previously though the RCA jacks from my playstation and it worked beatifully, so i don't believe it is the amp itself.

 

[vcoheda]

Quote:

Originally Posted by Snuggles /img/forum/go_quote.gif PROBLEM SOLVED: By accident I figured out that my cable was mis-wired, very disappointing for an interconnect I spent $76 on. Now, to wait on a replacement.

what do you mean miswired. and how did you figure this out.

 

[Snuggles]

Well I received an email from signal cable and he told me "suggests a defective connector (probably due to the "ground pin" hidden under the casing that may have lost contact)". Basically I figured this out because when I unplugged the cable I accidentally touched the inner portion of the right RCA plug to the outer contact for the right RCA input plug for my amp while the left side was still plugged in, and like magic the music opened up in the left channel and didn't sound terrible anymore, but only for the treble and part of the bass. This also happens to the right channel if you try it the opposite way. Therefore I figured it was a problem with the wire, but most likely I was wrong about the mis-wiring part and it was in fact the ground pin connection.

 

[NoPants]

I thought I'd reuse this thread since the title fits...

This morning I plugged in a mullard 12at7 into the earmax pro to find that there was a eruption of incandescent light from the tube. It then subsided and proceeded to warm up normally, without any adverse effects on my headphones (I used to own the LDII+). So all the EMP owners out there, is this normal??? It seems like this sort of thing would be detrimental to the tube lifespan and/or do something weird to my headphones.

 

[Hirsch]

Quote:

Originally Posted by NoPants /img/forum/go_quote.gif This morning I plugged in a mullard 12at7 into the earmax pro to find that there was a eruption of incandescent light from the tube. It then subsided and proceeded to warm up normally, without any adverse effects on my headphones (I used to own the LDII+). So all the EMP owners out there, is this normal??? It seems like this sort of thing would be detrimental to the tube lifespan and/or do something weird to my headphones.

Nope. No problem. A number of small signal tubes, such as the 12AT7, may have a brief flash on startup (a bit like a camera flash). This is normal behavior for the tube, and won't hurt anything.

 

[nc8000]

Yep my Amperex A2900 in my cd player does the same, scared the bejesus out of me the first time though (there being 3 of them so quite a flash)