2. analog
  3. 1374487733

Burn in Step up transformer with ipod.

Here is question for you guys. There are cd products out there that reduces the output of CD players to low levels so that they can burn in phonostages and step up transformers safely.

Most cs players output between 2-4 volts which can damage phono step ups. With an ipod, the headphone output is 30mv. If i pay a track via the ipod and connecting it to a step up transformer with rca and play at low volumes, wouldnt it be the same thing as what these products do?
leicachamp
marakanetz's avatar
marakanetz
5,473 posts
 
play some tunes and you'll be OK.
jjrenman
279 posts
 
If you turn the volume down to what a typical low output moving coil puts out it should work fine.

Anything around .2mv would be good. To much voltage will saturate the step up tranny.
bpoletti
1,525 posts
 
Don't forget to load the transformer outputs. A 47k resistor across each output should work OK.
leicachamp OP
103 posts
 
I dont think i can get the output to be as low as .2mv. I estimate at low volume the ipod would be pumping out 5-10mv. I have just finished a 24hr burn in session using my ipod and to my relief, no damage. I cant say whether it has improved the sound or not atm. Going to burn it a few more days.

I hear of theories of burning/damage the coils in Step up transformers but putting a too high signal, but i never read of an actual case!! Is it just a myth?

How much voltage can these transformers take?
prcinka
366 posts
 
I would buy the Granite Audio burn in disc...MM and also MC.
More to discover